US Remote Seals Catalog Sheet

© Siemens AG 2015
Pressure Measurement
Remote seals for transmitters and pressure gauges
1
Technical description
■ Application
The remote seals 7MF48.. can be fitted to SITRANS P transmitters for
• pressure (7MF4033 and 7MF4034),
• absolute pressure (7MF4233, 7MF4234, 7MF4333,
7MF4334) and
• differential pressure and flow (7MF4433, 7F4434 and
7MF5403 and 7MF5413).
■ Design and mode of operation
A remote seal system consists of a transmitter, one or two remote
seals, an appropriate transmission liquid, and a connection between the transmitter and remote seal (direct mounting or capillary).
Diaphragm seal of pancake design, and also with extended
diaphragm (extension)
The volume in contact with the measured medium is defined by
an flexible diaphragm. The volume between this diaphragm and
the pressure transmitter is completely filled with a transmission
fluid. If a pressure is now applied to the remote seal, this is transmitted via the flexible diaphragm and the fill fluid to the pressure
transmitter.
In many cases, a capillary is located between the remote seal
and the pressure transmitter in order e.g. to minimize temperature effects from the hot medium on the latter. However, the capillary line influences the response time and the temperature response of the complete remote seal system. When fitting remote
seals to differential pressure transmitters, two capillaries of the
same length must always be used.
Diaphragm seal of flush flange design, and also with extended
diaphragm (extension)
■ Fields of use
Remote seal systems should be used if a separation between
the measured medium and the measuring instrument is appropriate or essential for the following reasons:
• The temperature of the medium is outside the limits specified for the transmitter.
• The medium is corrosive and requires diaphragm materials in
the transmitter which are not available.
• The medium is highly viscous or contains solids which
would block the measuring chambers of the transmitter.
• The medium may freeze in the measuring chambers or
impulse line.
• The medium is heterogeneous and fibrous.
• The medium tends towards polymerization or crystallization.
• The process requires quick-release remote seals, as necessary e.g. in the food industry for fast cleaning.
• The process requires cleaning of the measuring site, e.g. in a
batch process.
■ Constructional designs
A differentiation is made between diaphragm seals and inline
seals.
With the diaphragm seals, the pressure is measured via a flat
convoluted diaphragm welded to a convoluted backup.
With the inline seals, the pressure is measured via a cylindrical
diaphragm positioned in a pipe, and transmitted to the transmitter via the filling liquid.
The inline seal is a special design for flowing media. It consists
of a cylindrical pipe in which a cylindrical diaphragm is embedded. Since it is completely integrated in the process pipe, no turbulences, dead volumes or other obstructions to the flow occur.
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Siemens FI 01 · 2015 US Edition
Tri-Clamp sanitary remote seal
Diaphragm seals
The following types of diaphragm seals exist:
• Pancake design, and pancake design with extended diaphragm (extension) to DIN or ANSI which are secured using a
backup blind flange.
• Flush flange design, and flange design with extended diaphragm (extension) to DIN or ANSI which are installed by using holes in the flange.
• Sanitary remote seals, e.g. to DIN 11851, Cherry Burrell,
APC connection, Tri-clamp connection, etc.
The sanitary remote seals are common designs in the food industry. Their design means that the measured medium cannot
accumulate in dead volumes. The sanitary clamp present on the
remote seal means that quick dismounting is possible for cleaning.
• Button diaphragm seal with male thread for screwing into
tapped holes.
• Remote seals with customer-specific process connections.
© Siemens AG 2015
Pressure Measurement
Remote seals for transmitters and pressure gauges
Technical description
Clamp-on seals
The following types of clamp-on seals exist:
• Sanitary inline seals, e.g. to DIN 11851, Cherry Burrell, triclamp connection etc.
The sanitary facility enables the seal to be removed quickly for
cleaning purposes.
• Inline seals for positioning between DIN or ANSI flanges.
• Inline seals with customer-specific process connections.
■ Transmission response
Temperature errors occur if the fill fluid in the remote seal and in
the capillaries expands or contracts as a result of temperature
effects. The temperature error depends on the diaphragm charateristic, the influence of the fill fluid, and the influence of the fill
fluid under the process flanges or in the flanges on the transmitter (volume minimized for remote seals).
Diaphragm characteristic
The charateristic of the remote seal is of great importance. The
larger the diaphragm diameter, the softer it is. In comparison to
a smaller diaphragm, this means that it can respond far easier to
temperature-based expansions of the filling liquid.
The result is that low measuring ranges are only possible with
large diaphragm diameters. In addition, the diaphragm thickness, its material, and any coatings which may be present must
also be considered.
Fill fluid
All fill fluids expand or contract when the temperature varies.
Temperature-independent errors can be minimized by selecting
a suitable filling liquid, but it must also be ensured that the filling
liquid is appropriate for the temperature limits and operating
pressure. For food and beverage as well as pharmaceutical applications see reference for FDA approved fill fluids.
Since the fill fluid is present under the remote seal diaphragm, in
the capillaries and under the process flanges of the transmitter,
the temperature error must be calculated separately for each
combination.
Response time
The response time depends on the internal diameter of the capillaries, the viscosity of the filling liquid, the capillary extension
length, and the pressure in the measuring system:
Internal diameter:
The response time decreases as the internal diameter
increases, but the temperature error increases due to increased
oil volume.
Viscosity:
The response time increases as the viscosity increases.
Capillary length:
The capillary length has a proportional effect on the response
time and the temperature error.
Measuring system pressure:
The response time decreases as the pressure in the measuring
system increases.
■ Recommendations
The following should be observed to obtain an optimum combination of transmitter and remote seal:
• The remote seal diameter, and thus the effective diameter of
the diaphragm, should be selected as large as possible in order to keep the temperature-dependents errors as low as possible.
• The capillaries should be selected as short as possible in order to keep the response time and the temperature-dependent errors as low as possible.
Button diaphragm seal with diaphragm flush with front
Sanitary tri-clamp seal and for flange pancake mounting
• A filling liquid should be selected which has the lowest viscosity and the lowest coefficient of expansion, and which simultaneously fulfills the process requirements with respect to pressure/vacuum and temperature. The filling liquid must also be
compatible with the process medium.
• When installing the equipment for vacuum applications, the
transmitter must always be located below the lowest tap.
• It should also be noted that some of the filling liquids are very
limited with respect to the permissible temperature of the medium for vacuum applications.
• When operating permanently at a vacuum, the remote seal
must be designed in the version resistant to those vacuum applicaton.
• Recommendations on the minimum span can be found in the
tables on pages 1/208 and 1/209.
■ Note
The remote seals listed in this catalog are a selection of the most
common designs. As a result of the large variety of process connections, it may nevertheless be the case that certain remote
seals which are not listed in the catalog are still available.
Other versions could be:
• Other process connections, standards
• Aseptic or sterile connections
• Other sizes
• Other nominal pressures
• Special diaphragm materials, including coatings
• Other sealing faces
• Other fill fluids
• Other capillary lengths
• Sheathing of capillaries with protective coat
• Calibration at higher/lower temperatures etc.
Please contact your Siemens Regional Office for more
information.
Siemens FI 01 · 2015 US Edition
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1
© Siemens AG 2015
Pressure Measurement
Remote seals for transmitters and pressure gauges
1
Technical description
■ Technical specifications
Nominal diameter, nominal
pressure, pressure connection
See Ordering data
Sealing face (only for pancake and
flanged remote seals)
To ANSI B16.5 RF 250 RMS for
stainless steel or solid materials
or
ANSI B16.5 RFSF
(smooth finish) for other materials
Materials
• Main body for pancake and flange
remote seals
• Wetted parts materials
• Housing and diaphragm for
Inline seals
• Capillary
• Armor
Stainless steel, mat. No.
1.4435/316L
See Ordering data
Stainless steel, mat. No. 1.4435/
316L or stainless steel,
7MF4880-... and 7MF4883-...
Stainless steel, mat. No.
1.4571/316Ti
Spiral sheath made of stainless
steel, mat. No. 304
Sealing material in the transmitter
pressure flanges
• For absolute pressure transmitters
and vacuum applications
• For other applications
Max. pressure
Capillary
• Length
Copper
Viton
See nominal pressure of remote
seal and transmitter
• Internal bore
• Smallest bending radius
Max. 30 ft.
longer lengths on inquiry
0.079 inch
6.0 inch
Fill fluid
• For pancake and flange remote
seals
• For sanitary remote seals
See Ordering data
Neobee M20 or glycerine/water
Ambient temperature
See transmitter and filling liquid
Certificates and approvals
Classification according to pressure
equipment directive
(DGRL 97/23/EC)
For gases of fluid group 1 and liquids of fluid group 1; complies
with requirements of article 3,
paragraph 3 (sound engineering
practice)
■ Measuring errors based on physical properties always result when using remote seals
Temperature errors of diaphragm seals when connected to pressure, absolute pressure or level transmitters, and with
single-sided connection to differential pressure transmitters
Nominal diameter/
design
Flange to
ANSI B16.5
Flange to
DIN 2501
Sanitary
Tri-Clamp
Button Seal
2" flush flanged
2" with extension
3" flush flanged
3" with extension
4" flush flanged
4" with extension
5" flush flanged
5" with extension
DN 50 flush flanged
DN 50 with extension
DN 80 flush flanged
DN 80 with extension
DN 100 flush flanged
DN 100 with extension
DN 125 flush flanged
DN 125 with extension
1 ½"
2"
2 ½"
3"
4"
1 NPT-male
1 ½ NPT-male
2" NPT-male
Effective
diaphragm
diameter [in]
2.32
1.89
3.5
2.83
3.5
3.5
4.88
4.88
2.32
1.89
3.5
2.83
3.5
3.5
4.88
4.88
1.26
1.57
2.32
2.83
3.5
0.98
1.57
2.05
Temperature error Temperature error Temperature error
of remote seal
of capillary
of transmitter
[inH2O/25 °F]
[inH2O/25 °F/3 ft] flange connection
[inH2O/25 °F]
1.69
2.04
2.04
2.81
5.1
5.1
0.23
0.21
0.21
0.58
0.53
0.53
0.23
0.21
0.21
0.23
0.21
0.21
0.12
0.07
0.07
0.12
0.07
0.07
1.69
2.04
2.04
2.81
5.1
5.1
0.23
0.21
0.21
0.58
0.53
0.53
0.23
0.21
0.21
0.23
0.21
0.21
0.12
0.07
0.07
0.12
0.07
0.07
9.51
35.73
35.73
3.93
7.67
7.67
1.69
2.57
2.57
0.58
0.53
0.53
0.23
0.21
0.21
13.97
81.7
81.7
3.93
7.67
7.67
2.23
2.57
2.57
Temperature errors of diaphragm seals (part 1)
Remarks:
• Values apply to fill fluid: silicone oil DC 200, high-temperature oil, halocarbon oil and Neobee M20.
• Values apply to stainless steel as the diaphragm material.
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Siemens FI 01 · 2015 US Edition
Recommended
values, min. spans
(observe temperature error) [psi]
7.5
7.5
1.5
3.5
1.5
1.5
0.3
0.3
7.5
7.5
1.5
3.5
1.5
1.5
0.3
0.3
60
30
7.5
3.5
1.5
90
30
7.5
© Siemens AG 2015
Pressure Measurement
Remote seals for transmitters and pressure gauges
Technical description
Temperature errors of diaphragm seals with double-sided connection to differential pressure transmitters
Nominal diameter/
design
Flange to
ANSI B16.5
Flange to
DIN 2501
Sanitary
Tri-Clamp
2" flush flanged
2" with extension
3" flush flanged
3" with extension
4" flush flanged
4" with extension
5" flush flanged
5" with extension
DN 50 flush flanged
DN 50 with extension
DN 80 flush flanged
DN 80 with extension
DN 100 flush flanged
DN 100 with extension
DN 125 flush flanged
DN 125 with extension
2"
2 ½"
3"
4"
Effective
diaphragm
diameter [in]
2.32
1.89
3.5
2.83
3.5
3.5
4.88
4.88
2.32
1.89
3.5
2.83
3.5
3.5
4.88
4.88
1.57
2.32
2.83
3.5
Temperature error Temperature error Temperature error
of remote seal
of capillary
of transmitter
[inH2O/25 °F]
[inH2O/25 °F/3 ft] flange connection
[inH2O/25 °F]
0.384
0.42
0.42
0.692
1.051
1.051
0.077
0.042
0.042
0.154
0.126
0.126
0.077
0.042
0.042
0.077
0.042
0.042
0.038
0.017
0.017
0.038
0.017
0.017
0.384
0.42
0.42
0.692
1.051
1.051
0.077
0.042
0.042
0.154
0.126
0.126
0.077
0.042
0.042
0.077
0.042
0.042
0.038
0.017
0.017
0.038
0.017
0.017
0.961
1.849
1.849
0.384
0.42
0.42
0.154
0.126
0.126
0.077
0.042
0.042
Recommended
values, min. spans
(observe temperature error) [psi]
3.5
3.5
1
1.5
1
1
0.3
0.3
3.5
3.5
1
1.5
1
1
0.3
0.3
30
3.5
1.5
1
Temperature errors of diaphragm seals (part 2)
Remarks:
• Values apply to fill fluids: silicone oil DC 200, high-temperature oil, halocarbon oil and Neobee M20.
• Values apply to stainless steel as the diaphragm material.
Temperature errors of clamp-on seals when connected to pressure or absolute pressure transmitters, and with single-sided
connection to differential pressure transmitters
Nominal diameter/design
1 inch
1 ½ inch
2 inch
3 inch
4 inch
Temperature error of
remote seal
[inH2O/25 °F]
3.345
2.499
2.23
5.305
0.461
Temperature error of capillary
[inH2O/25 °F/3 ft]
5.17
2.732
1.849
3.068
1.849
Temperature error of
transmitter flange connection [inH2O/25 °F]
5.17
2.732
1.849
3.068
1.849
Recommended values,
min. spans (observe temperature error) [psi]
14.5
3.5
1.5
1.5
1.5
Temperature errors of clamp-on seals with double-sided connection to differential pressure transmitters
Nominal diameter/design
1 inch
1 ½ inch
2 inch
3 inch
4 inch
Temperature error of
remote seal
[inH2O/25 °F]
1.269
0.461
0.154
1.692
0.577
Temperature error of capillary
[inH2O/25 °F/3 ft]
1.093
0.168
0.084
0.294
0.084
Temperature error of
transmitter flange connection [inH2O/25 °F]
1.093
0.168
0.084
0.294
0.084
Recommended values,
min. spans (observe temperature error) [psi]
14.5
3.5
1.5
1.5
1.5
Temperature errors of clamp-on seals
Remarks:
• Values apply to fill fluids: silicone oil DC 200, high-temperature oil, halocarbon oil and Neobee M20.
• Values apply to stainless steel as the diaphragm material.
• Diaphragm thickness: 1" & 1 ½" & 2":0.002 inch
3" & 4": 0.004 inch
Siemens FI 01 · 2015 US Edition
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1
© Siemens AG 2015
Pressure Measurement
Remote seals for transmitters and pressure gauges
1
Technical description
Calculation of temperature error for remote seals
Dependence of temperature error on diaphragm material
The following equation is used to calculate the temperature error
for remote seals:
The errors listed in the tables on pages 1/208 and 1/209 refer to
the use of stainless steel as the diaphragm material. If a different
material is used, the listed values change by the amount shown
in the following table.
dp = (tRS - tCal) . fRS + (tCap - tCal) . lCap . fCap + (tTR - tCal) . fPF
dp
Additional temperature error (inH2O)
Diaphragm material
tRS
Temperature on remote seal diaphragm
(generally corresponds to temperature of medium)
Change in temperature error
of remote seal
Stainless steel
tCal
Reference (calibration) temperature 68 °F
Values as specified in tables on
pages 1/208 and 1/209
fRS
Temperature error of remote seal (see tables on pages 1/208 and 1/209)
Hastelloy C4, mat. No. 2.4610
Increase in values by 50%
Hastelloy C276, mat. No. 2.4819
Increase in values by 50%
Monel 400, mat. No. 2.4360
Increase in values by 60%
Tantalum
Increase in values by 50%
Titanium
Increase in values by 50%
Teflon lining on stainless steel
diaphragm
Increase in values by 120%
Halar coating or PFA coating on
stainless steel diaphragm
Increase in values by 100%
Example of calculation of temperature error for remote seals
Existing conditions:
Gold coating on stainless steel
diaphragm
Increase in values by 40%
tCap Ambient temperature on the capillaries
lCap Capillary extension length (error given per 3 ft)
fCap Temperature error of capillaries (see tables on pages 1/208 and 1/209)
tTR
Ambient temperature on transmitter
fPF
Temperature error of oil filling in process flanges of transmitter
(see tables on pages 1/208 and 1/209)
SITRANS P transmitter for differential
pressure, 100 inH2O, set to 0 to 40 inH2O
with 3 in flush flanged remote seal,
diaphragm made of stainless steel,
mat. No. 1.4535/316L
fRS = 0.054 inH2O/25 °F
Capillary 2 x 15 ft
lCap = 2 x 15 ft
Capillaries fitted on both sides
fCap= 0.042 inH2O/25 °F/3 ft
Filled with silicone oil DC 200-10
fPF = 0.042 inH2O/25 °F
Temperature of medium 212 °F
tRS = 212 °F
Temperature on capillaries 122 °F
tCap = 122 °F
Temperature on transmitter 122 °F
tTR = 122 °F
Response times (approximate)
Required:
Additional temperature error of remote seal: dp
Calculation:
dp = (212 °F – 68 °F) . 0.077 inH2O/25 °F + (122 °F – 68 °F) . 15 ft
. 2 . 0.042 inH O/25 °F / 3ft + (122 °F – 68 °F) . 0.042 inH O/25 °F
2
2
dp = 0.444 inH2O + 0.907 inH2O + 0.091 inH2O
Result:
dp = 1.442 inH2O (corresponds to 3.605 % of set span)
Note:
The temperature error determined above only applies to the error
resulting from connection of the remote seal.
The transmission response of the respective transmitter is not included in
this consideration. It must be calculated separately, and the resulting
error added to the error determined above from connection of the remote
seal.
1/210
Siemens FI 01 · 2015 US Edition
The listed values are the response times (in seconds, per meter
of capillary extension) for a change in pressure which corresponds to the set span.
The listed values must be multiplied by the respective length of
the capillary extension, or with transmitters for differential pressure and flow by the total length of both capillary extensions.
The response times are independent of the set span within the
range of the respective transmitter. The response times are of
insignificant importance for spans above 145 psi (10 bar). The
response time of the transmitter has not been considered.
© Siemens AG 2015
Pressure Measurement
Remote seals for transmitters and pressure gauges
Technical description
Filling liquid
Density
Temperature on capillary
Response time in s/m (s/ft) with max. span of transmitter
kg/dm3
(lb/in3)
°C
(°F)
250 mbar
(3.63 psi)
600 mbar
(8.7 psi)
1600 mbar (23.2 psi)
Silicone oil
DC 200-10
0.934
(0.033)
+60
+20
- 20
(140)
(68)
(-4)
0.06
0.11
0.3
(0.018)
(0.034)
(0.091)
0.02
0.02
0.12
(0.006)
(0.006)
(0.037)
0.01
0.02
0.05
(0.003)
(0.006)
(0.015)
Silicone oil
DC 200-50
0.966
(0.035)
+60
+20
- 20
(140)
(68)
(-4)
0.6
0.61
1.69
(0.183)
(0.186)
(0.515)
0.25
0.26
0.71
(0.076)
(0.079)
(0.216)
0.09
0.1
0.27
(0.027)
(0.030)
(0.082)
Syltherm 800
0.935
(0.034)
+60
+20
- 20
(140)
(68)
(-4)
0.06
0.11
0.3
(0.018)
(0.034)
(0.091)
0.02
0.02
0.12
(0.006)
(0.006)
(0.37)
0.01
0.02
0.05
(0.003)
(0.006)
(0.015)
High-temperature
oil
1.07
(0.039)
+60
+20
-10
(140)
(68)
(14)
0.14
0.65
3.96
(0.043)
(0.198)
(1.207)
0.06
0.27
1.65
(0.018)
(0.082)
(0.503)
0.02
0.1
0.62
(0.006)
(0.030)
(0.189)
Halocarbon oil
1.968
(0.071)
+60
+20
- 20
(140)
(68)
(68)
0.07
0.29
2.88
(0.021)
(0.088)
(0.878)
0.03
0.12
1.2
(0.009)
(0.037)
(0.366)
0.01
0.05
0.45
(0.003)
(0.015)
(0.137)
Fluorolube
1.866
(0.068)
+60
+20
- 20
(140)
(68)
(68)
0.07
0.29
2.88
(0.021)
(0.088)
(0.878)
0.03
0.12
1.2
(0.009)
(0.037)
(0.366)
0.01
0.05
0.45
(0.003)
(0.015)
(0.137)
Neobee M20
0.917
(0.033)
+60
+20
- 20
(140)
(68)
(68)
0.18
0.43
1.19
(0.055)
(0.131)
(0.363)
0.08
0.18
0.5
(0.024)
(0.055)
(0.152)
0.03
0.07
0.18
(0.009)
(0.021)
(0.055)
Glycerine/water
1.22
(0.044)
+60
+20
0
(140)
(68)
(32)
0.13
0.76
9.72
(0.040)
(0.232)
(2.963)
0.05
0.32
4.05
(0.015)
(0.098)
(12.34)
0.02
0.12
1.51
(0.006)
(0.037)
(0.460)
■ Technical specifications of filling liquid
When selecting the filling liquid, check that it is suitable with
respect to the permissible temperature of the medium and the
process pressure. Also check the compatibility with the measured medium. For example, only food grade filling liquids may
be used in the food industry. A special case are oxygen and
chlorine as the measured media; the fill fluid must not react with
them, otherwise an explosion or fire may occur if there is a leak
in the remote seal.
Filling liquid
Permissible temperature of medium
Density at 20 °C
(68 °F)
pabs<1 bar
(pabs<14.5 psi) pabs>1 bar
(pabs>14.5 psi) kg/dm3 (lb/in3)
°C
(°F)
°C
(°F)
Silicone oil
DC200-10
Silicone oil
DC 200-50
Syltherm 800
-40 to +121
(-40 to +248)
-40 to +200
(-40 to +392)
0.934
-20 to +150
(-4 to +302)
-20 to +250
(-4 to +482)
-40 to +121
(-40 to +250)
-40 to +205
High-temperature oil
Halocarbon oil
-10 to +200
(+14 to +392)
-10 to +350
-40 to +80
(-40 to +176)
Fluorolube
Not possible
Not possible
Neobee M20
10 to +90
Glycerine/water
Not possible
Viscosity at 20 °C
(68 °F)
Expansion
coefficient
m2/s·106 (ft2/s·106) 1/°C
(1/°F)
(0.03)
10
(107.6)
0.00108
(0.00060)
0.96
(0.03)
50
(538)
0.00104
(0.00058)
(-40 to +400)
0.935
(0.034)
10.03
(107.9)
0.00109
(0.00061)
(+14 to +662)
1.07
(0.04)
39
(420)
0.0008
(0.00044)
-40 to +175
(-40 to +347)
1.968
(0.07)
14
(151)
0.00086
(0.00048)
-40 to +175
(-40 to +347)
1.866
(0.068)
15.5
(167)
0.000864 (0.00048)
(+14 to +195)
-10 to +200
(+14 to +392)
0.917
(0.03)
9.8
(105)
0.00082
(0.00045)
Not possible
-10 to +120
(+14 to +248)
1.22
(0.04)
88
(947)
0.0005
(0.00028)
■ Maximum temperature of medium
■ Maximum capillary length (guidance values for diaphragm
seals and inline seals)
The following maximum temperatures of the medium apply
depending on the wetted parts materials:
Material
Stainless steel, mat. No. 1.4571/316Ti
PTFE coating
ECTFE/PFA coating
Hastelloy C4, mat. No. 2.4610
Hastelloy C276, mat. No. 2.4819
Monel 400, mat. No. 2.4360
Tantalum
pabs < 1 bar
(14.5 psi)
Nominal diameter
pabs > 1 bar
(14.5 psi)
Max. length of capillary
Diaphragm seal
Inline seal
DN 25
(1 inch)
2.5 m
(8.2 ft)
2.5 m
(8.2 ft)
°C
(°F)
°C
(°F)
DN 32
(1¼ inch)
2.5 m
(4.9 ft)
2.5 m
(8.2 ft)
200
100
100
200
200
200
200
(392)
(212)
(212)
(392)
(392)
(392)
(392)
350
150
150
350
350
350
300
(662)
(302)
(302)
(662)
(662)
(662)
(572)
DN 40
(1½ inch)
4m
(13.1 ft)
6m
(19.7 ft)
DN 50
(2 inch)
6m
(19.7 ft)
10 m
(32.8 ft)
DN 65
(2½ inch)
8m
(26.2 ft)
10 m
(32.8 ft)
DN 80
(3 inch)
10 m
(32.8 ft)
10 m
(32.8 ft)
Size
4 inch
(30.0 ft)
–
Size
5 inch
(30.0 ft)
–
Siemens FI 01 · 2015 US Edition
–
1/211
1
© Siemens AG 2015
Pressure Measurement
Remote seals for transmitters and pressure gauges
Pancake type diaphragm seal with flexible capillary tube
■ Overview
Selection and Ordering data
Article No. Order code
Pancake type diaphragm seal
with flexible capillary extension, connected to
a SITRANS P transmitter (order separately)
for pressure 7MF40 7 7 or 7MF42 7 7
7MF4800-
for absolute pressure 7MF43 7 7
7MF4801-
for differential pressure 7MF44 7 7
• dual seals for DP
7MF48031 7777 - 7B
777
Click on the Article No. for the online configuration in the PIA Life Cycle Portal.
• 2 inch
class 150 ... 2500
• 3 inch
class 150 ... 2500
• 4 inch
class 150 ... 2500
• 5 inch
class 150 ... 2500
Special design, customer information to be
supplied
Pancake type diaphragm seal
■ Dimensions (Connection to ASME B16.5)
This area (A) is to be coated with
teflon (PFA) to a minimum
thickness of 0.004"
No foreign liquids or
material are to enter
these openings
A
A
1
System
fill port
A
DM
D
Pancake type diaphragm seal, dimensions
Size
Class
2"
3"
4"
5"
150 - 2500
D
DM
F
A [in2]
3.94
2.32
0.79
12.2
5.28
3.50
0.79
21.9
6.22
3.50
0.79
30.4
7.32
4.80
0.87
42.1
Size = Nominal pipe size
DM = Effective diaphragm diameter
Class = Flange rating per ASME B16.5
All dimensions in inches unless otherwise noted
1/212
Siemens FI 01 · 2015 US Edition
Materials and wetted parts
• SST 316L
• SST 316L with carbon pigmented Teflon lined
diaphragm (good upto 500 °F)
• Monel 400, mat. No. 2.4360
• Hastelloy C276, mat. No. 2.4819
• Tantal
Special design, customer information to be
supplied
Extension length (316SS standard)
Without extension (standard version)
Special design, customer information to be
supplied for extension
System fill
• Silicone oil DC 200-10
• Silicone oil DC 200-50
• High temperature oil
• Halocarbon (for O2-application)
• Silicone oil M5
• Syltherm 800
• DC704 silicone oil
• Fluorolube
Special design, customer inform. to be supplied
Length of capillary
• 3 ft
• 5 ft
• 10 ft
• 15 ft
• 20 ft
• 25 ft
• 30 ft
Special design, customer inform. to be supplied
E
H
L
N
Z
J1Y
A
E0
G
J
K
Z
K1J
0
9
L1Y
1
2
3
4
5
6
7
8
9
M1 Y
2
3
4
5
6
7
8
9
N1Y
Further designs
Please add „-Z“ to Article No. and specifiy
Order code
for 7MF4800
Integrated flame path restriction
Certificate of calibration N.I.S.T. (20% steps)
Material conformance certificate
Vacuum service (must be specified with HT oil)
Calculation of span of transmitter (completed
questionnaire to be attached)
A01
C11
C12
V01
Y05
for 7MF4801
Integrated flame path restriction
Certificate of calibration N.I.S.T. (20% steps)
Material conformance certificate
Calculation of span of transmitter (completed
questionnaire to be attached)
A01
C11
C12
Y05
for 7MF4803
Integrated flame path restriction
Certificate of calibration N.I.S.T. (20% steps)
Material conformance certificate
Vacuum service (must be specified with HT oil)
Calculation of span of transmitter (completed
questionnaire to be attached)
A02
C11
C12
V03
Y05
© Siemens AG 2015
Pressure Measurement
Remote seals for transmitters and pressure gauges
Flange-type diaphragm seal directly connected
■ Overview
Size Class
A
B
C
DM
E
F
G
X
Weight
DN
½"
¾"
1"
1.5"
Flange-type diaphragm seal, without extension
2"
■ Dimensions (connection to ASME B16.5)
Optional instrument
Welded capillary
connection
1/4” NPT
1/2“ NPT
3"
lbs
150
3.50 2.38 1.38
1.3 0.85 0.06 0.62
4
2.2
300
3.75 2.62 1.38
1.6 0.85 0.06 0.62
4
2.2
150
3.88 2.75 1.69
1.6 0.85 0.06 0.62
4
2.4
300
4.62 3.25 1.69
1.6 0.85 0.06 0.75
4
3.5
150
4.25 3.12 2.00
2.1 0.85 0.06 0.62
4
3.1
300
4.88 3.50 2.00
2.1 0.85 0.06 0.75
4
3.7
150
5.00 3.55 2.88
1.9 0.69 0.06 0.62
4
3.5
300
6.12 4.50 2.88
1.9 0.81 0.06 0.88
4
5.5
600
6.12 4.50 2.88
1.9 1.13 0.25 0.88
4
7.3
1500
7.00 4.88 2.88
1.9 1.50 0.25 1.12
4
13.0
2500
8.00 5.75 2.88
1.9 2.00 0.25 1.25
4
22.9
150
6.00 4.75 3.62
2.4 0.75 0.06 0.75
4
5.9
300
6.50 5.00 3.62
2.4 0.88 0.06 0.75
8
8.1
600
6.50 5.00 3.62
2.4 1.25 0.25 0.75
8
12.5
1500
8.50 6.50 3.62
2.4 1.75 0.25 1.00
8
29.0
2500
9.25 6.75 3.62
2.4 2.25 0.25 1.12
8
43.6
150
7.50 6.00 5.00
3.5 0.94 0.06 0.75
4
11.7
300
8.25 6.62 5.00
3.5 1.12 0.06 0.88
8
17.2
600
8.25 6.62 5.00
3.5 1.50 0.25 0.88
8
24.2
900
9.50 7.50 5.00
3.5 1.75 0.25 1.00
8
36.7
1500 10.53 8.00 5.00
3.5 2.13 0.25 1.25
8
53.9
2500 12.01 9.00 5.00
3.5 2.87 0.25 1.38
8
93.9
9.00 7.50 6.19
3.5 0.94 0.06 0.75
8
16.9
300 10.04 7.88 6.19
3.5 1.25 0.06 0.88
8
27.9
400
10.4 7.88 6.19
3.5 1.63 0.25 1.00
8
38.3
600 10.83 8.50 6.19
3.5 1.75 0.25 1.00
8
47.3
900 11.51 9.25 6.19
3.5 2.00 0.25 1.25
8
60.9
1500 12.30 9.50 6.19
3.5 2.37 0.25 1.38
8
81.4
2500 14.00 10.75 6.19
3.5 3.25 0.25 1.62
8
144.5
150
4"
Flange-type diaphragm seal without extension for flanges 1"
DN = Nominal pipe size
DM = Effective diaphragm diameter
Class = Flange rating per ASME B16.5
X = Number of bolt holes
All dimensions in inches unless otherwise noted
Flange-type diaphragm seal, without extension, dimensions
System
fill port
Optional instrument
connections
welded capillary
connection
1/4” NPT
1/2“ NPT
Flange-type diaphragm seal without extension for flanges 1.5"
Siemens FI 01 · 2015 US Edition
1/213
1
© Siemens AG 2015
Pressure Measurement
Remote seals for transmitters and pressure gauges
1
Flange-type diaphragm seal with extension
■ Overview
Selection and Ordering data
Article No. Order code
Flange-type diaphragm seal
directly connected to a
SITRANS P 7MF40 7 7 or 7MF42 7 7
(order separately)
7MF481077777
777
Click on the Article No. for the online configuration in the PIA Life Cycle Portal.
Process connection
vertical (transmitter upright)
horizontal
Size and class
• 2 inch
class 150
• 2 inch
class 300
• 2 inch
class 600
• 2 inch
class 1500
• 3 inch
class 150
• 3 inch
class 300
• 3 inch
class 600
• 4 inch
class 150
• 4 inch
class 300
• 4 inch
class 400
Special design, customer information to be
supplied
Flange-type diaphragm seal, with extension
■ Dimensions
Instrument connection
Options
Welded capillary connection
1/4” NPT
1/2“ NPT
Materials and wetted parts
• SST 316L
• SST 316L with carbon pigmented Teflon lined
diaphragm (good upto 500 °F)
• Monel 400, mat. No. 2.4360
• Hastelloy C276, mat. No. 2.4819
• Tantal
Special design, customer information to be
supplied
Extension length (316SS standard)
Without extension (standard version)
2"
4"
6"
8"
Special design, customer information to be
supplied for extension
System fill
• Silicone oil DC 200-10
• Silicone oil DC 200-50
• High temperature oil
• Halocarbon (for O2-application)
• Silicone oil M5
• Syltherm 800
• DC704 silicone oil
• Fluorolube
Special design, customer information to be
supplied
Size Class
A
B
C
DM E1)
F
G
H X
L
DN
2"
150 6.00 4.75
300 6.50 5.00
3"
150 7.50 6.00
300 8.25 6.62
4"
150 9.00 7.50
300 10.04 7.88
3.62 1.8 1.90
5.00 2.8 2.99
6.19 3.5 3.70
0.75
0.75 4
0.88
0.75 8
0.94
1.12
0.06
0.75 4
0.88 8
0.94
0.75 8
1.25
0.88 8
1)
based on schedule 40
DN = Nominal pipe size
DM = Effective diaphragm diameter
Class = Flange rating per ASME B16.5
X = Number of bolt holes
All dimensions in inches unless otherwise noted
Flange-type diaphragm seal, with extension, dimensions
1/214
Siemens FI 01 · 2015 US Edition
2.0 3.0 4.0 6.0
0
2
L
M
N
P
Q
R
S
T
U
V
Z
J1Y
A
E0
G
J
K
Z
K1Y
0
1
2
3
4
9
L1Y
1
2
3
4
5
6
7
8
9
M1 Y
Further designs
Please add „-Z“ to Article No. and specifiy
Order code
Integrated flame path restriction
Rotatable Flange
Certification of calibration N.I.S.T. (20% steps)
Material conformance certificate
Vacuum service (must be specified with HT oil)
Calculation of span of transmitter (completed
questionnaire to be attached)
A01
B01
C11
C12
V01
Y05
© Siemens AG 2015
Pressure Measurement
Remote seals for transmitters and pressure gauges
Flange-type diaphragm seal with extension
Selection and Ordering data
Article No. Order code
Selection and Ordering data
7MF4812-
Mounting flange at High-Side, Flange-Type
Seal, w/o extension Flange-type seal via
capillary extension on low-side without
extension
Mounting flange
directly mounted at SITRANS P for Level
7MF46 7 7 (order separately)
3 7777
777
for SITRANS P for differential pressure
7MF44 7 7 (order separately)
Click on the Article No. for the online configuration in the PIA Life Cycle Portal.
Flange
Size
ANSI B16.5
2 inch
Class
150
300
150
3 inch
300
150
4 inch
300
Special design, customer information to be
supplied
Materials and wetted parts
• SST 316L
• SST 316L with carbon pigmented Teflon lined
diaphragm (good upto 500 °F)
• Monel 400, mat. No. 2.4360
• Hastelloy C276, mat. No. 2.4819
• Tantal
Special design, customer information to be
supplied
Extension length (316SS standard)
Without extension (standard version, 0 mm)
2"
50 mm
4"
100 mm
6"
150 mm
8"
200 mm
Special design, customer information to be
supplied for extension
System fill
• Silicone oil DC 200-10
• Silicone oil DC 200-50
• High temperature oil
• Halocarbon (for O2-application)
• Silicone oil M5
• Syltherm 800
• DC704 silicone oil
• Fluorolube
Special design, customer information to be
supplied
7MF48131 7777 - 7B
777
Click on the Article No. for the online configuration in the PIA Life Cycle Portal.
L
M
Q
R
T
U
Z
J1Y
A
E0
G
J
K
Z
K1Y
0
1
2
3
4
9
L1Y
1
2
3
4
5
6
7
8
9
M1 Y
Further designs
Please add „-Z“ to Article No. and specifiy
Order code
Integrated flame path restriction
Rotatable Flange
Certificates:
Certification of calibration N.I.S.T. (20% steps)
Material conformance certificate
Vacuum service (must be specified with HT oil)
Calculation of span of transmitter (completed
questionnaire to be attached)
Article No. Order code
A0 1
B0 1
C1
C1
V0
Y0
1
2
4
5
Flange
Size
ANSI B16.5
2 inch
Class
150
300
150
3 inch
300
150
4 inch
300
Special design, customer information to be
supplied
Materials and wetted parts
• SST 316L
• SST 316L with carbon pigmented Teflon lined
diaphragm (good upto 500 °F)
• Monel 400, mat. No. 2.4360
• Hastelloy C276, mat. No. 2.4819
• Tantal
Special design, customer information to be
supplied
Extension length (316SS standard)
Without extension (standard version, 0 mm)
2"
50 mm
4"
100 mm
6"
150 mm
8"
200 mm
Special design, customer information to be
supplied for extension
System fill
• Silicone oil DC 200-10
• Silicone oil DC 200-50
• High temperature oil
• Halocarbon (for O2-application)
• Silicone oil M5
• Syltherm 800
• DC704 silicone oil
• Fluorolube
Special design, customer information to be
supplied
L
M
Q
R
T
U
Z
J1Y
A
E
G
J
K
Z
K1Y
0
1
2
3
4
9
L1Y
1
2
3
4
5
6
7
8
9
Capillary length at low-side
• 3 ft
• 5 ft
• 10 ft
• 15 ft
• 20 ft
• 25 ft
• 30 ft
Special design, customer information to be
supplied
M1 Y
2
3
4
5
6
7
8
9
Further designs
Please add „-Z“ to Article No. and specifiy
Order code
Integrated flame path restriction
Rotatable Flange
Certification of calibration N.I.S.T. (20% steps)
Material conformance certificate
Vacuum service (must be specified with HT oil)
Calculation of span of transmitter (completed
questionnaire to be attached)
Siemens FI 01 · 2015 US Edition
A0
B0
C1
C1
V0
Y0
2
1
1
2
4
5
1/215
1
© Siemens AG 2015
Pressure Measurement
Remote seals for transmitters and pressure gauges
1
Diaphragm seal "flanged off-line low-pressure type", directly connected
■ Overview
DM = Effective diaphragm diameter
G1 = Instrument connection
G2 = Process connection
G3 = Threaded bolt hole
X = Number of bolt holes
Class = Flange rating per ASME B16.5
Size = Nominal pipe size
All dimensions in inches unless otherwise noted
Diaphragm seal "flanges off-line low-pressure type"
■ Dimensions (Connection to ASME B16.5)
Instrument connection options
welded capillary connection
1/4” NPT
1/2“ NPT
Size
½"
½"
½"
¾"
¾"
¾"
1"
1"
1"
1 ½"
1 ½"
1 ½"
2"
2"
2"
G2
Class
150#
300#
600#
150#
300#
600#
150#
300#
600#
150#
300#
600#
150#
300#
600#
1/216
G3
X
½"-13UNC
½"-13UNC
½"-13UNC
½"-13UNC
5
/8"-11UNC
5
/8"-11UNC
½"-13UNC
5/ "-11UNC
8
5
/8"-11UNC
½"-13UNC
¾"-10UNC
¾"-10UNC
5/ "-11UNC
8
5/ "-11UNC
8
5
/8"-11UNC
4
4
4
4
4
4
4
4
4
4
4
4
4
8
8
A
B
5.91
5.91
5.91
5.91
5.91
5.91
5.91
5.91 5.91
5.91
5.91
6.12
6.12
6.00
6.50
6.50
Siemens FI 01 · 2015 US Edition
C
0.06
0.06
0.25
0.06
0.06
0.25
0.06
0.06
0.25
0.06
0.06
0.25
0.06
0.06
0.25
DM
E
3.5
2.36
2.36
2.55
2.36
2.36
2.55
2.36
2.36
2.55
2.36
2.46
2.65
2.36
2.36
2.55
© Siemens AG 2015
Pressure Measurement
Remote seals for transmitters and pressure gauges
Diaphragm seal "flanged off-line low-pressure type", directly connected
Selection and Ordering data
Article No. Order code
Diaphragm seal "flanged off-line low-pressure type"
direct mount to transmitter, 316 stainless steel
upper housing SITRANS P for 7MF44 7 7 or
7MF46 7 7 (order separately)
7MF48143 7777
777
Click on the Article No. for the online configuration in the PIA Life Cycle Portal.
Size and class
• ½ inch
class 150#RF
• ½ inch
class 300#RF
• ½ inch
class 600#RF
• ¾ inch
class 150#RF
• ¾ inch
class 300#RF
• ¾ inch
class 600#RF
• 1 inch
class 150#RF
• 1 inch
class 300#RF
• 1 inch
class 600#RF
• 1 ½ inch
class 150#RF
• 1 ½ inch
class 300#RF
• 1 ½ inch
class 600#RF
• 2 inch
class 150#RF
• 2 inch
class 300#RF
• 2 inch
class 600#RF
Special design, customer information to be
supplied
Materials and wetted parts
• SST 316L
• SST 316L with carbon pigmented Teflon lined
diaphragm (good upto 500 °F)
• Monel 400, mat. No. 2.4360
• Hastelloy C276, mat. No. 2.4819
• Tantal
Special design, customer information to be
supplied
Flushing port(s)
None
1 x ¼"NPT-female (available w/ SS, HC or MO)
2 x ¼"NPT-female (available w/ SS, HC or MO)
Special design, customer information to be
supplied
System fill
• Silicone oil DC 200-10
• Silicone oil DC 200-50
• High temperature oil
• Halocarbon (for O2-application)
• Silicone oil M5
• Syltherm 800
• DC704 silicone oil
• Fluorolube
Special design, customer information to be
supplied
A
B
C
E
F
G
J
K
L
N
P
Q
S
T
U
Z
J1Y
A
E
G
J
K
Z
K1Y
0
2
4
9
L1Y
1
2
3
4
5
6
7
8
9
M1 Y
Further designs
Please add „-Z“ to Article No. and specifiy
Order code
Integrated flame path restriction
Certification of calibration N.I.S.T. (20 % steps)
A0 1
Material conformance certificate
C1 2
Vacuum service (must be specified with HT oil)
V01
Calculation of span of transmitter (completed
questionnaire to be attached)
Y05
C1 1
Siemens FI 01 · 2015 US Edition
1/217
1
© Siemens AG 2015
Pressure Measurement
Remote seals for transmitters and pressure gauges
1
Flange-type diaphragm seal with flexible capillary tube
■ Overview
■ Connection to ASME B16.5
Size Class
A
B
C
DM
E
F
G
X
Weight
DN
½"
¾"
1"
1.5"
Flange-type diaphragm seal with flexible capillary extension
2"
■ Dimensions (Connection to ASME B16.5)
Optional instrument
Welded capillary
connection
1/4” NPT
1/2” NPT
3"
lbs
150
3.50 2.38 1.38
1.3 0.85 0.06 0.62
4
2.2
300
3.75 2.62 1.38
1.6 0.85 0.06 0.62
4
2.2
150
3.88 2.75 1.69
1.6 0.85 0.06 0.62
4
2.4
300
4.62 3.25 1.69
1.6 0.85 0.06 0.75
4
3.5
150
4.25 3.12 2.00
2.1 0.85 0.06 0.62
4
3.1
300
4.88 3.50 2.00
2.1 0.85 0.06 0.75
4
3.7
150
5.00 3.55 2.88
1.9 0.69 0.06 0.62
4
3.5
300
6.12 4.50 2.88
1.9 0.81 0.06 0.88
4
5.5
600
6.12 4.50 2.88
1.9 1.13 0.25 0.88
4
7.3
1500
7.00 4.88 2.88
1.9 1.50 0.25 1.12
4
13.0
2500
8.00 5.75 2.88
1.9 2.00 0.25 1.25
4
22.9
150
6.00 4.75 3.62
2.4 0.75 0.06 0.75
4
5.9
300
6.50 5.00 3.62
2.4 0.88 0.06 0.75
8
8.1
600
6.50 5.00 3.62
2.4 1.25 0.25 0.75
8
12.5
1500
8.50 6.50 3.62
2.4 1.75 0.25 1.00
8
29.0
2500
9.25 6.75 3.62
2.4 2.25 0.25 1.12
8
43.6
150
7.50 6.00 5.00
3.5 0.94 0.06 0.75
4
11.7
300
8.25 6.62 5.00
3.5 1.12 0.06 0.88
8
17.2
600
8.25 6.62 5.00
3.5 1.50 0.25 0.88
8
24.2
900
9.50 7.50 5.00
3.5 1.75 0.25 1.00
8
36.7
1500 10.53 8.00 5.00
3.5 2.13 0.25 1.25
8
53.9
2500 12.01 9.00 5.00
3.5 2.87 0.25 1.38
8
93.9
9.00 7.50 6.19
3.5 0.94 0.06 0.75
8
16.9
300 10.04 7.88 6.19
3.5 1.25 0.06 0.88
8
27.9
400
10.4 7.88 6.19
3.5 1.63 0.25 1.00
8
38.3
600 10.83 8.50 6.19
3.5 1.75 0.25 1.00
8
47.3
900 11.51 9.25 6.19
3.5 2.00 0.25 1.25
8
60.9
1500 12.30 9.50 6.19
3.5 2.37 0.25 1.38
8
81.4
2500 14.00 10.75 6.19
3.5 3.25 0.25 1.62
8
144.5
150
4"
Flange-type diaphragm seal for flanges 1"
System
fill port
Optional instrument
connections
welded capillary
connection
1/4” NPT
1/2” NPT
Flange-type diaphragm seal for flanges .5"
1/218
Siemens FI 01 · 2015 US Edition
DN = Nominal pipe size
DM = Effective diaphragm diameter
Class = Flange rating per ASME B16.5
X = Number of bolt holes
All dimensions in inches unless otherwise noted
© Siemens AG 2015
Pressure Measurement
Remote seals for transmitters and pressure gauges
Flange-type diaphragm seal with flexible capillary tube
Selection and Ordering data
Article No. Order code
Flange-type diaphragm seal
for pressure 7MF40 7 7 or 7MF42 7 7
7MF4820-
for absolute pressure 7MF43 7 7
7MF4821-
for differential pressure 7MF44 7 7
• dual seals for DP
7MF48231 7777 - 7B
777
Click on the Article No. for the online configuration in the PIA Life Cycle Portal.
Materials and wetted parts
• SST 316L
• SST 316L with carbon pigmented Teflon lined
diaphragm (good upto 500 °F)
• Monel 400, mat. No. 2.4360
• Hastelloy C276, mat. No. 2.4819
• Tantal
Special design, customer information to be
supplied
Extension length (316SS standard)
Without extension (standard version)
Special design, customer information to be
supplied for extension
System fill
• Silicone oil DC 200-10
• Silicone oil DC 200-50
• High temperature oil
• Halocarbon (for O2-application)
• Silicone oil M5
• Syltherm 800
• DC704 silicone oil
• Fluorolube
Special design, customer information to be
supplied
Length of capillary
• 3 ft
• 5 ft
• 10 ft
• 15 ft
• 20 ft
• 25 ft
• 30 ft
Special design, customer information to be
supplied
Order code
Further designs
Please add „-Z“ to Article No. and specifiy
Order code
with flexible capillary extension, connected to
a SITRANS P transmitter (order separately)
Size and class
• 2 inch
class 150
• 2 inch
class 300
• 2 inch
class 600
• 2 inch
class 1500
• 3 inch
class 150
• 3 inch
class 300
• 3 inch
class 600
• 4 inch
class 150
• 4 inch
class 300
• 4 inch
class 400
• 5 inch
class 150
• 5 inch
class 300
• 5 inch
class 400
Special design, customer information to be
supplied
Selection and Ordering data
L
M
N
P
Q
R
S
T
U
V
W
X
Y
Z
J1Y
A
E0
G
J
K
Z
for 7MF4820
Integrated flame path restriction
Rotatable Flange
DP "H" flange service
Certificate of calibration N.I.S.T. (20 % steps)
Material conformance certificate
Vacuum service (must be specified with HT oil)
Calculation of span of transmitter (completed
questionnaire to be attached)
A01
B01
B02
C11
C12
V01
Y05
for 7MF4821
Integrated flame path restriction
Rotatable Flange
Certificate of calibration N.I.S.T. (20 % steps)
Material conformance certificate
Calculation of span of transmitter (completed
questionnaire to be attached)
A01
B01
C11
C12
Y05
for 7MF4823
Integrated flame path restriction
Rotatable Flange
Certificate of calibration N.I.S.T. (20 % steps)
Material conformance certificate
Vacuum service (must be specified with HT oil)
Calculation of span of transmitter (completed
questionnaire to be attached)
A02
B01
C11
C12
V03
Y05
K1Y
0
9
L1Y
1
2
3
4
5
6
7
8
9
M1 Y
2
3
4
5
6
7
8
9
N1Y
Siemens FI 01 · 2015 US Edition
1/219
1
© Siemens AG 2015
Pressure Measurement
Remote seals for transmitters and pressure gauges
1
Diaphragm seal "flanged off-line type"
■ Overview
G1
¼"-NPT
or
½"-NPT
G1
½"
½"
½"
1"
1"
1"
1 ½"
1 ½"
1 ½"
2"
2"
2"
G2
150#
300#
600#
150#
300#
600#
150#
300#
600#
150#
300#
600#
G2
G3
4 x ½"-13UNC
4 x ½"-13UNC
4 x ½"-13UNC
4 x ½"-13UNC
4 x 5/8"-11UNC
4 x 5/8"-11UNC
4 x ½"-13UNC
4 x ¾"-10UNC
4 x ¾"-10UNC
4 x 5/8"-11UNC
8 x 0.75
8 x 0.75
A
3.75
3.75
3.75
4.25
4.88
4.88
5.00
6.12
6.12
6.00
6.50
6.50
B
2.38
2.62
2.62
3.12
3.50
3.50
3.88
4.50
4.50
4.75
5.00
5.00
G3
F
H
C
½" 150# 4 x ½"-13UNC 1.10 0.06
½" 300# 4 x ½"-13UNC 1.10 0.06
½" 600# 4 x ½"-13UNC 1.26 0.25
1" 150# 4 x ½"-13UNC 0.87 0.06
1" 300# 4 x 5/8"-11UNC 0.87 0.06
¼"-NPT
1" 600# 4 x 5/8"-11UNC 1.26 0.25
or
½"-NPT 1 ½" 150# 4 x ½"-13UNC 0.87 0.06
1 ½" 300# 4 x ¾"-10UNC 0.87 0.06
1 ½" 600# 4 x ¾"-10UNC 1.26 0.25
2" 150# 4 x 5/8"-11UNC 0.87 0.06
2" 300# 8 x 0.75
0.89 0.06
2" 600# 8 x 0.75
1.28 0.25
DM = Effective diaphragm diameter
G1 = Instrument connection
G2 = Process connection
G3 = Threaded bolt hole
All dimensions in inches unless otherwise noted
Instrument
connection
System
fill port
Diaphragm seal "flanged off-line type", dimensions
Instrument
connection
System
fill port
Optional
1/8” NPT
or 1/4” NPT
flushing
connection
1/220
Siemens FI 01 · 2015 US Edition
E
2.1
3.74
1.38
2.00
2.88
3.62
J
Diaphragm seal "flanged off-line type"
■ Dimensions (Connection to ASME B16.5)
DM
2.20
2.20
2.36
1.97
1.97
2.36
1.97
1.97
2.36
1.97
1.99
2.38
Weight
lbs
4.3
4.3
4.4
4.4
8.5
8.5
5.0
6.6
9.1
6.1
8.5
10.0
© Siemens AG 2015
Pressure Measurement
Remote seals for transmitters and pressure gauges
Diaphragm seal "flanged off-line type"
Selection and Ordering data
Article No. Order code
Diaphragm seal "flanged off-line type"
MAWP depends on flange
with flexible armored capillary, 316 stainless
steel upper housing SITRANS P for 7MF40 7 7
and 7MF42 7 7 (order separately)
777
Click on the Article No. for the online configuration in the PIA Life Cycle Portal.
Seal design
Stud mount
All-welded stud mount
Through-hole flange mount
Size and class
• ½ inch
class 150#RF
• ½ inch
class 300#RF
• ½ inch
class 600#RF
• ¾ inch
class 150#RF
• ¾ inch
class 300#RF
• ¾ inch
class 600#RF
• 1 inch
class 150#RF
• 1 inch
class 300#RF
• 1 inch
class 600#RF
• 1 ½ inch
class 150#RF
• 1 ½ inch
class 300#RF
• 1 ½ inch
class 600#RF
• 2 inch
class 150#RF
• 2 inch
class 300#RF
• 2 inch
class 600#RF
Special design, customer information to be
supplied
Materials and wetted parts
• SST 316L
• SST 316L with carbon pigmented Teflon lined
diaphragm (good upto 500 °F)
• Monel 400, mat. No. 2.4360
• Hastelloy C276, mat. No. 2.4819
• Tantal
Special design, customer information to be
supplied
Flushing port(s)
None
1 x ¼"NPT-female (available w/ SS, HC or MO)
2 x ¼"NPT-female (available w/ SS, HC or MO)
Special design, customer information to be
supplied
System fill
• Silicone oil DC 200-10
• Silicone oil DC 200-50
• High temperature oil (comes with metal gasket and stronger bolts)
• Halocarbon (for O2-application)
• Silicone oil M5
• Syltherm 800
• DC704 silicone oil
• Fluorolube
Special design, customer information to be
supplied
Length of capillary
• Direct mount
• 3 ft
• 5 ft
• 10 ft
• 15 ft
• 20 ft
• 25 ft
• 30 ft
Special design, customer information to be
supplied
1
2
3
A
B
C
E
F
G
J
K
L
N
P
Q
S
T
U
Z
Article No. Order code
Further designs
Please add „-Z“ to Article No. and specifiy
Order code
7MF482677777 - 7B
Selection and Ordering data
Integrated flame path restriction
DP "H" flange service
Certification of calibration N.I.S.T. (20 % steps)
Material conformance certificate
Vacuum service (must be specified with HT oil)
Calculation of span of transmitter (completed
questionnaire to be attached)
A0
B0
C1
C1
V0
Y0
1
2
1
2
1
5
J1Y
A
E
G
J
K
Z
K1Y
0
2
4
9
L1Y
1
2
3
4
5
6
7
8
9
M1 Y
0
2
3
4
5
6
7
8
9
N1Y
Siemens FI 01 · 2015 US Edition
1/221
1
© Siemens AG 2015
Pressure Measurement
Remote seals for transmitters and pressure gauges
1
Diaphragm seal "flanged off-line low-pressure type"
■ Overview
Diaphragm seal "flanged off-line low-pressure type"
■ Dimensions (Connection to ASME B16.5)
Instrument connection options
welded capillary connection
1/4” NPT
1/2“ NPT
1/222
Siemens FI 01 · 2015 US Edition
G2
G3
X
A
B
Size
Class
½"
150#
½"-13UNC
4
5.91
½"
300#
½"-13UNC
4
5.91
½"
600#
½"-13UNC
4
5.91
¾"
150#
½"-13UNC
4
5.91
5/ "-11UNC
¾"
300#
4
5.91
8
5/ "-11UNC
¾"
600#
4
5.91
8
1"
150#
½"-13UNC
4
5.91
5/ "-11UNC
1"
300#
4
5.91 5.91
8
5
1"
600#
/8"-11UNC
4
5.91
1 ½"
150#
½"-13UNC
4
5.91
1 ½"
300#
¾"-10UNC
4
6.12
1 ½"
600#
¾"-10UNC
4
6.12
5/ "-11UNC
2"
150#
4
6.00
8
5/ "-11UNC
2"
300#
8
6.50
8
5
2"
600#
/8"-11UNC
8
6.50
DM = Effective diaphragm diameter
G2 = Process connection
G3 = Threaded bolt hole
X = Number of bolt holes
Class = Flange rating per ASME B16.5
Size = Nominal pipe size
All dimensions in inches unless otherwise noted
C
0.06
0.06
0.25
0.06
0.06
0.25
0.06
0.06
0.25
0.06
0.06
0.25
0.06
0.06
0.25
DM
E
3.5
2.36
2.36
2.55
2.36
2.36
2.55
2.36
2.36
2.55
2.36
2.46
2.65
2.36
2.36
2.55
Diaphragm seal "flanged off-line low-pressure type", dimensions
© Siemens AG 2015
Pressure Measurement
Remote seals for transmitters and pressure gauges
Diaphragm seal "flanged off-line low-pressure type"
Selection and Ordering data
Article No. Order code
Diaphragm seal "flanged off-line
low-pressure type"
with flexible armored capillary, 316 stainless
steel upper housing SITRANS P for 7MF40 7 7
and 7MF42 7 7 (order separately)
Materials and wetted parts
• SST 316L
• SST 316L with carbon pigmented Teflon lined
diaphragm (good upto 500 °F)
• Monel 400, mat. No. 2.4360
• Hastelloy C276, mat. No. 2.4819
• Tantal
Special design, customer information to be
supplied
Flushing port(s)
None
1 x ¼"NPT-female (available w/ SS, HC or MO)
2 x ¼"NPT-female (available w/ SS, HC or MO)
Special design, customer information to be
supplied
System fill
• Silicone oil DC 200-10
• Silicone oil DC 200-50
• High temperature oil
• Halocarbon (for O2-application)
• Silicone oil M5
• Syltherm 800
• DC704 silicone oil
• Fluorolube
Special design, customer information to be
supplied
Length of capillary
• Direct mount
• 3 ft
• 5 ft
• 10 ft
• 15 ft
• 20 ft
• 25 ft
• 30 ft
Special design, customer information to be
supplied
7MF48271 7777 - 7B
777
with flexible armored capillary, 316 stainless
steel upper housing SITRANS P for 7MF44 7 7
(order separately)
7MF48281 7777 - 7B
777
Click on the Article No. for the online configuration in the PIA Life Cycle Portal.
A
B
C
E
F
G
J
K
L
N
P
Q
S
T
U
Z
J1Y
A
E
G
J
K
Z
K1Y
0
2
4
9
L1Y
1
2
3
4
5
6
7
8
9
M1 Y
0
2
3
4
5
6
7
8
9
N1Y
Size and class
• ½ inch
class 150#RF
• ½ inch
class 300#RF
• ½ inch
class 600#RF
• ¾ inch
class 150#RF
• ¾ inch
class 300#RF
• ¾ inch
class 600#RF
• 1 inch
class 150#RF
• 1 inch
class 300#RF
• 1 inch
class 600#RF
• 1 ½ inch
class 150#RF
• 1 ½ inch
class 300#RF
• 1 ½ inch
class 600#RF
• 2 inch
class 150#RF
• 2 inch
class 300#RF
• 2 inch
class 600#RF
Special design, customer information to be
supplied
Materials and wetted parts
• SST 316L
• SST 316L with carbon pigmented Teflon lined
diaphragm (good upto 500 °F)
• Monel 400, mat. No. 2.4360
• Hastelloy C276, mat. No. 2.4819
• Tantal
Special design, customer information to be
supplied
Flushing port(s)
None
1 x ¼"NPT-female (available w/ SS, HC or MO)
2 x ¼"NPT-female (available w/ SS, HC or MO)
Special design, customer information to be
supplied
System fill
• Silicone oil DC 200-10
• Silicone oil DC 200-50
• High temperature oil
• Halocarbon (for O2-application)
• Silicone oil M5
• Syltherm 800
• DC704 silicone oil
• Fluorolube
Special design, customer information to be
supplied
A
B
C
E
F
G
J
K
L
N
P
Q
S
T
U
Z
J1Y
A
E
G
J
K
Z
K1Y
0
2
4
9
L1Y
1
2
3
4
5
6
7
8
9
Length of capillary
• 3 ft
• 5 ft
• 10 ft
• 15 ft
• 20 ft
• 25 ft
• 30 ft
Special design, customer information to be
supplied
M1 Y
2
3
4
5
6
7
8
9
N1Y
Further designs
Please add „-Z“ to Article No. and specifiy
Order code
Further designs
Please add „-Z“ to Article No. and specifiy
Order code
Integrated flame path restriction
DP "H" flange service
Certification of calibration N.I.S.T. (20 % steps)
Material conformance certificate
Vacuum service (must be specified with HT oil)
Calculation of span of transmitter (completed
questionnaire to be attached)
Article No. Order code
Diaphragm seal "flanged off-line
low-pressure type"
Click on the Article No. for the online configuration in the PIA Life Cycle Portal.
Size and class
• ½ inch
class 150#RF
• ½ inch
class 300#RF
• ½ inch
class 600#RF
• ¾ inch
class 150#RF
• ¾ inch
class 300#RF
• ¾ inch
class 600#RF
• 1 inch
class 150#RF
• 1 inch
class 300#RF
• 1 inch
class 600#RF
• 1 ½ inch
class 150#RF
• 1 ½ inch
class 300#RF
• 1 ½ inch
class 600#RF
• 2 inch
class 150#RF
• 2 inch
class 300#RF
• 2 inch
class 600#RF
Special design, customer information to be
supplied
Selection and Ordering data
A0
B0
C1
C1
V0
Y0
1
2
1
2
1
5
Integrated flame path restriction
Certification of calibration N.I.S.T. (20 % steps)
Material conformance certificate
Vacuum service (must be specified with HT oil)
Calculation of span of transmitter (completed
questionnaire to be attached)
Siemens FI 01 · 2015 US Edition
A0
C1
C1
V0
Y0
2
1
2
1
5
1/223
1
© Siemens AG 2015
Pressure Measurement
Remote seals for transmitters and pressure gauges
Flushing rings
■ Overview
■ Technical specifications
Flushing ring for remote seals of pancake and flange design
Nom. diam.
• DN 50
• DN 80
• DN 100
• DN 125
Nom. press.
PN 16 ... PN 100
PN 16 ... PN 100
PN 16 ... PN 100
PN 16 ... PN 100
• 2 inch
• 3 inch
• 4 inch
• 5 inch
Class 150 ... class 600
Class 150 ... class 600
Class 150 ... class 600
Class 150 ... class 600
Sealing face
Flushing ring
• To EN 1092-1
Form B1
Form B2
Form D/Form D
Form C/Form C
Form C/Form C
Form E
Form F
• To ASME B16.5
RF 125 ... 250 AA
RFSF
RJT ring groove
Flushing holes (2 off), female
thread:
• G¼
• G½
Flushing rings are required for flange-mounted and pancake
type remote seals (Article No. 7MF4800 ... 7MF4823) if the danger exists that the process conditions and the geometry of the
connection could cause the process to form deposits or blockages.
The flushing ring is clamped between the process flange and
the remote seal.
Deposits can be flushed away from the diaphragm through the
holes in the side, or the pressure volume can be vented. Different
nominal diameters and forms permit adaptation to the respective process flange.
• ¼-18 NPT
Process connection
• ½-14 NPT
For flanges to EN and ASME:
DN 50, 80, 100, 125; PN 16 ... 100 or
DN 2 inch, 3 inch, 4 inch, 5 inch; Class 150 ... 600
Stainless steel 1.4404/316L
Material
■ Dimensional drawings
Standard design
Thread
Material: CrNi-Stahl, mat. No. 1.4404/316L
Sealing faces and flushing holes: See Ordering data
■ Design
h
1
Remote seal flange
Flushing ring
di
d4
Flushing outlet
Gasket
Measuring
point flange
Installation example
Flushing inlet
Connection to EN 1092-1
DN
PN
d4
di
h
Weight
(mm)
(bar)
(mm)
(mm)
(mm)
(kg)
50
16 ... 100
102
62
30
1.10
80
16 ... 100
138
92
30
1.90
100
16 ... 100
162
92
30
3.15
125
16 ... 100
188
126
30
3.50
Connection to ASME B 16.5
DN
inch
Class
d4
mm
di
Siemens FI 01 · 2015 US Edition
Weight
(inch) mm (inch) mm (inch) kg
(lb)
2
150 ... 600 92
(3.62) 62
(2.44) 30
(1.18) 0.60
(1.32)
3
150 ... 600 127
(5)
92
(3.62) 30
(1.18) 1.05
(2.31)
4
150 ... 600 157
(6.18) 92
(3.62) 30
(1.18) 2.85
(6.28)
5
150 ... 600 185.5 (7.3)
126 (4.96) 30
(1.18) 3.30
(7.28)
Flushing ring, dimension drawing
1/224
h
© Siemens AG 2015
Pressure Measurement
Remote seals for transmitters and pressure gauges
Flushing rings
Selection and Ordering data
Article No. Ord. code
Flushing ring
7MF4825-
for remote seals 7MF4900 to 7MF4923
1 7777
777
Click on the Article No. for the online configuration in the PIA Life Cycle Portal.
Nom. diam.
Nom. press.
• 2 inch
• 3 inch
• 4 inch
• 5 inch
Class 150 ... 600
Class 150 ... 600
Class 150 ... 600
Class 150 ... 600
Other version
Add Order code and plain text:
Nominal diameter: ...; Nominal pressure: ...
Sealing face
• ASME B16.5
- RF 125 ... 250 AA
- RFSF
- RJT ring groove
Other version
Add Order code and plain text:
Sealing face: ...
Flushing holes (2 off)
• Female thread G¼
• Female thread G½
• Female thread ¼-18 NPT
• Female thread ½-14 NPT
Material
• Stainless steel 316L
Other version
Add Order code and plain text:
Material: ...
G
H
J
K
Z
J1Y
M
Q
R
Z
K1Y
1
2
3
4
0
9
M1 Y
Further designs
Please add „-Z“ to Article No. and specifiy
Order code
Acceptance test certificate B
to EN 10204, section 3.1.B
C1 2
Siemens FI 01 · 2015 US Edition
1/225
1
© Siemens AG 2015
Pressure Measurement
Remote seals for transmitters and pressure gauges
1
Diaphragm seal with quick connection
■ Overview
■ Overview
Diaphragm seal with quick connection, with slotted union nut
■ Dimensions (connection to ASME B16.5)
Diaphragm seal with quick connection, Tri-Clamp connection
■ Dimensions (connection to ASME B16.5)
Type 7MF4840
with union nut
DN MAWP
A
[mm] [psi]
[mm]
25
600 Rd 52 x 1/6
32
600 Rd 58 x 1/6
40
600 Rd 65 x 1/6
50
360 Rd 78 x 1/6
B
C
DM
E
2.48
2.76
3.07
3.62
0.83
0.83
0.83
0.87
1.0
1.3
1.6
2.1
2.36
2.72
2.17
2.32
G1
Weight
[lbs]
1.3
¼"-NPT
1.6
or
½"-NPT
2.5
female
2.8
Diaphragm seal with quick connection, with slotted union nut
Type 7MF4840
with male
thread
DN MAWP
A
[mm] [psi]
[mm]
40
600 Rd 65 x 1/6
50
360 Rd 78 x 1/6
B
C
3.07 1.12
3.62 1.42
DM
E
1.6
2.1
2.17
2.24
G1
Weight
[lbs]
¼"-NPT
2.8
or
3.0
½"-NPT
female
DM = Effective diaphragm diameter
MAWP = Maximum Working Pressure @ 250 °F
G1 = Instrument connection
DN = Nominal pipe size
All dimensions in inches unless otherwise noted
Diaphragm seal with quick connection, with male thread, dimensions
1/226
Siemens FI 01 · 2015 US Edition
Size MAWP A
B
C
DM
E
G1
Weight
[in] [psi]
[lbs]
1.5
600
1.50 1.97 1.71 1.0
1.3
¼"-NPT
2
550
1.50 2.52 2.22 1.6
1.7
or
2.5
450
2.52 3.05 2.78 2.0 1.38
2.0
½"-NPT
3
350
2.31 3.58 3.28 2.8
2.4
female
4
250
2.31 4.68 4.34 3.5
2.7
DM = Effective diaphragm diameter
MAWP = Maximum Working Pressure @ 250 °F, higher rating with
appropriate clamping device
G1 = Instrument connection
Size = Nominal pipe size
All dimensions in inches unless otherwise noted
Diaphragm seal with quick connection, Tri-Clamp connection, dimensions
© Siemens AG 2015
Pressure Measurement
Remote seals for transmitters and pressure gauges
Inline diaphragm seal with quick connection
■ Overview
Selection and Ordering data
Article No. Order code
Diaphragm seal
with quick connection for gage pressure
transmitter SITRANS P 7MF40 7 7 and
7MF42 7 7 (order separately)
7MF484077 A 0 7 - 7B
777
made of 316 SS
Click on the Article No. for the online configuration in the PIA Life Cycle Portal.
Process connection
DIN 11 851 with slotted union nut
DN 25/PN 40
DN 32/PN 40
DN 40/PN 40
DN 50/PN 25
DN 65/PN 25
DN 80/PN 25
Diaphragm seal with quick connection, "i"-line (Cherry Burrel - male)
■ Dimensions (connection to ASME B16.5)
DIN 11 851 with screw necks
DN 25/PN 40
DN 32/PN 40
DN 40/PN 40
DN 50/PN 25
DN 65/PN 25
DN 80/PN 25
Tri-Clamp Connection
1 ½" 600 psi
2" 550 psi
2 ½" 450 psi
3" 350 psi
Varivent (Tuchenhagen)
Size 25132
Size 40150
Sanitary (4" Tank Spud)
2" extension
6" extension
"I"-Line (Cherry Burrell - male)
1 ½" 500 psi
2" 450 psi
3" 350 psi
Special design, customer information to be
supplied
System fill
• Vegetable oil
• Glycerin/Water 86.5/13.5 %
• Neobee M20
• Mineral oil
Special design, customer information to be
supplied
Size MAWP A
B
C
[in]
[psi]
1.5
500
1.18 2.00
2
450
1.42 1.18 2.64
3
350
1.30 3.87
DM
1.3
1.8
2.8
E
F
1.74 1.38
2.24 1.44
3.30 1.59
G1
Weight
[lbs]
¼"-NPT
1.3
or
1.7
½"-NPT
2.4
female
DM = Effective diaphragm diameter
MAWP = Maximum Working Pressure @ 250 °F, higher rating with
appropriate clamping device
G1 = Instrument connection
Size = Nominal pipe size
All dimensions in inches unless otherwise noted
Diaphragm seal with quick connection, "i"-line (Cherry Burrel - male),
dimensions
1B
1C
1D
1E
1F
1G
2B
2C
2D
2E
2F
2G
4L
4M
4N
4P
5C
5E
6B
6D
5U
5V
5W
9Z
H1Y
+J1Y
1
2
3
4
9
Length of capillary
• Direct Mount
• 3 ft
• 5 ft
• 10 ft
• 15 ft
• 20 ft
• 25 ft
• 30 ft
Special design, customer information to be
supplied
M1 Y
0
2
3
4
5
6
7
8
9
N1Y
Further designs
Please add „-Z“ to Article No. and specifiy
Order code
Certification of calibration N.I.S.T. (20 % steps)
Material conformance certificate
Vacuum service (must be specified with vegetable oil)
Calculation of span of transmitter (completed
questionnaire to be attached)
C11
C12
V01
Y05
Tank Spud accessories
Sanitary Tank Spud Clamp (1 pc.)
Sanitary Tank Spud O-ring (1 pc.)
Sanitary Tank Spud Weldolet 2" extension
(1 pc.)
Sanitary Tank Spud Weldolet 6" extension
(1 pc.)
Siemens FI 01 · 2015 US Edition
P10
P11
P12
P13
1/227
1
© Siemens AG 2015
Pressure Measurement
Remote seals for transmitters and pressure gauges
1
Inline diaphragm seal with quick connection
Selection and Ordering data
Article No. Order code
Diaphragm seal
with quick connection for differential transmitter SITRANS P 7MF44 7 7
(order separately) made of 316 SS
7MF484377 A 0 7 - 7B
777
Click on the Article No. for the online configuration in the PIA Life Cycle Portal.
Process connection
DIN 11 851 with slotted union nut
DN 50/PN 25
DN 65/PN 25
DN 80/PN 25
DIN 11 851 with screw necks
DN 50/PN 25
DN 65/PN 25
DN 80/PN 25
Tri-Clamp Connection
2" 550 psi
2 ½" 450 psi
3" 350 psi
4" 250 psi
"I"-Line (Cherry Burrell - male)
3" 350 psi
4" 200 psi
Sanitary (4" Tank Spud)
2" extension
6" extension
Special design, customer information to be
supplied
System fill
• Vegetable oil
• Glycerin/Water 86.5/13.5 %
• Neobee M20
• Mineral oil
Special design, customer information to be
supplied
Length of capillary
• 3 ft
• 5 ft
• 10 ft
• 15 ft
• 20 ft
• 25 ft
• 30 ft
Special design, customer information to be
supplied
1E
1F
1G
2E
2F
2G
4M
4N
4P
4Q
5W
5X
6B
6D
9Z
H1Y
+J1Y
1
2
3
4
9
M1 Y
2
3
4
5
6
7
8
9
N1Y
Further designs
Please add „-Z“ to Article No. and specifiy
Order code
Certification of calibration N.I.S.T. (20 % steps)
Material conformance certificate
Vacuum service (must be specified with vegetable oil)
Calculation of span of transmitter (completed
questionnaire to be attached)
C11
C12
V03
Y05
Tank Spud accessories
Sanitary Tank Spud Clamp (1 pc., two required)
P10
Sanitary Tank Spud O-ring (1 pc., two required)
P11
Sanitary Tank Spud Weldolet 2" extension
(1 pc., two required)
P12
Sanitary Tank Spud Weldolet 6" extension
(1 pc., two required)
P13
1/228
Siemens FI 01 · 2015 US Edition
© Siemens AG 2015
Pressure Measurement
Remote seals for transmitters and pressure gauges
Inline diaphragm seal with quick connection
■ Overview
■ Overview
Inline diaphragm seal with quick connector, DIN 11851 with thread
Inline diaphragm seal with quick connection, Tri-clamp
■ Dimensions (connection to ASME B16.5)
DN MAWP
A
B
C
E
G
H
J
L
[mm] [psi]
15
600 Rd34x1/8 1.10 1.57 0.71 0.12 0.16 0.47 4.1
25
600 Rd52x1/6 1.50 2.05 1.18 0.14 0.28 0.55 5.0
40
600 Rd65x1/6 2.17 2.56 1.65 0.14 0.28 0.55 6.3
50
360 Rd78x1/6 2.68 3.07 2.13 0.14 0.28 0.55 6.7
65
360 Rd95x1/6 3.35 3.74 2.80 0.14 0.31 0.63 7.2
80
360 Rd110x1/4 4.33 4.33 3.35 0.14 0.31 0.79 7.2
100 360 Rd130x1/4 5.12 5.12 4.09 0.16 0.39 0.79 7.2
MB = Internal diameter
MAWP = Maximum Working Pressure @ 250 °F, higher rating with
appropriate clamping device
DN = Nominal pipe size
All dimensions in inches unless otherwise noted
■ Dimensions (connection to ASME B16.5)
MB
0.63
1.02
1.50
1.97
2.60
3.19
3.94
Inline diaphragm seal with quick connector, DIN 11851 with thread,
dimensions
Size
MAWP
A
B
C
E
L
MB
[psi]
¾"
600
0.7
1.34
0.8
0.98
3.8
0.6
1"
600
1.4
1.97
1.7
1.97
4.5
1.0
1.5"
600
1.7
1.97
1.7
1.97
5.7
1.5
2"
550
2.2
2.50
2.2
2.50
6.1
1.9
2.5"
450
2.7
3.10
2.8
3.10
6.1
2.4
3"
350
3.2
3.60
3.3
3.60
6.1
2.9
3.5"
350
3.7
4.20
3.8
4.20
6.1
3.3
4"
250
4.3
4.70
4.3
4.70
6.1
3.8
MB = Internal diameter
MAWP = Maximum Working Pressure @ 250 °F, higher rating with
appropriate clamping device
Size = Nominal pipe size
All dimensions in inches unless otherwise noted
Inline diaphragm seal with quick connection, Tri-clamp, dimensions
Siemens FI 01 · 2015 US Edition
1/229
1
© Siemens AG 2015
Pressure Measurement
Remote seals for transmitters and pressure gauges
1
Inline diaphragm seal with quick connection
■ Overview
Selection and Ordering data
Article No. Order code
Inline diaphragm seal
with quick connection for transmitter
SITRANS P for 7MF40 7 7 and 7MF42 7 7
(order separately) made of 316 SS
7MF485077 A 0 7 - 7B
777
Click on the Article No. for the online configuration in the PIA Life Cycle Portal.
Inline diaphragm seal with quick connection, "i"-Line
(Cherry Burrell - male/male)
■ Dimensions (connection to ASME B16.5)
Process connection
DIN 11 851 with thread [C]
DN 25/PN 40
DN 40/PN 40
DN 50/PN 25
DN 65/PN 25
DN 80/PN 25
DN100/PN 25
Tri-Clamp Connection
1"
600 psi
1 ½" 600 psi
2"
550 psi
2 ½" 450 psi
3"
350 psi
"I"-Line (Cherry Burrell - male/male)
1"
500 psi
1 ½" 500 psi
2"
450 psi
3"
350 psi
Special design, customer information to be
supplied
System fill
• Vegetable oil
• Glycerin/Water 86.5/13.5 %
• Neobee M20
• Mineral oil
Special design, customer information to be
supplied
Size
MAWP
A
B
C
E
H
L
MB
[psi]
1.5"
500
1.68
1.97
1.74
2.00 0.203 4.79
1.38
2"
450
2.25
2.50
2.24
2.64 0.258 5.54
1.88
2.5"
350
2.75
3.10
2.74
3.31 0.312 6.38
2.37
MB = Internal diameter
MAWP = Maximum Working Pressure @ 250 °F, higher rating with
appropriate clamping device
Size = Nominal pipe size
All dimensions in inches unless otherwise noted
Inline diaphragm seal with quick connection, "i"-Line (Cherry Burrell male/male), dimensions
1/230
Siemens FI 01 · 2015 US Edition
Length of capillary
• Direct mount
• 3 ft
• 5 ft
• 10 ft
• 15 ft
• 20 ft
• 25 ft
• 30 ft
Special design, customer information to be
supplied
2B
2D
2E
2F
2G
2H
4K
4L
4M
4N
4P
5R
5U
5V
5W
9Z
H1Y
+J1Y
1
2
3
4
9
M1 Y
0
2
3
4
5
6
7
8
9
N1Y
Further designs
Please add „-Z“ to Article No. and specifiy
Order code
Certification of calibration N.I.S.T. (20 % steps)
Material conformance certificate
Vacuum service (must be specified with vegetable oil)
Calculation of span of transmitter (completed
questionnaire to be attached)
C11
C12
V03
Y05
© Siemens AG 2015
Pressure Measurement
Remote seals for transmitters and pressure gauges
Diaphragm seal "threaded design"
■ Overview
G1
G2
A
B
DM
E
F
¼"-NPT or
1.18
2.1
2.20 0.63
½"-NPT
3.74
¾"-NPT
1.41
2.1
2.36 0.79
1"-NPT
1.77
2.1
3.46 1.89
G1 = Instrument connection, G2 = Process connection
DM = Effective diaphragm diameter
All dimensions in inches unless otherwise noted
¼"-NPT
or
½"-NPT
Weight
[lbs]
3.0
3.4
3.6
Diaphragm seal "threaded design"
Selection and Ordering data
Diaphragm seal "threaded design"
MAWP 3675 psi
with flexible armored capillary, 316 stainless
steel upper housing SITRANS P for 7MF407 7
and 7MF42 7 7 pressure (order separately)
Article No. Order code
7MF48611 7777 - 7B
Click on the Article No. for the online configuration in the PIA Life Cycle Portal.
Diaphragm seal "threaded design"
■ Dimensions (Connection to ASME B16.5)
Instrument
connection
Size and class
• ¼"NPT-female
• ½"NPT-female
• ¾"NPT-female
• 1"NPT-female
Special design, customer information to be
supplied
Materials and wetted parts
• SST 316L
• SST 316L with carbon pigmented Teflon lined
diaphragm (good upto 500 °F)
• SST 316L with Hastelloy C276 diaphragm
• SST 316L with PFA coated diaphragm (good
upto 500 °F)
• Monel 400, mat. No. 2.4360
• Hastelloy C276, mat. No. 2.4819
• Hastelloy C276 lower housing with Tantalum
diaphragm
Special design, customer inform. to be supplied
System
fill port
Process
connection
Instrument
connection
System
fill port
Flushing port(s)
None
1 x ¼"NPT-female
2 x ¼"NPT-female
Special design, customer inform. to be supplied
System fill
• Silicone oil DC 200-10
• Silicone oil DC 200-50
• High temperature oil (comes with metal gasket and stronger bolts)
• Halocarbon (for O2-application)
• Silicone oil M5
• Syltherm 800
• DC704 silicone oil
• Fluorolube
Special design, customer inform. to be supplied
A
B
C
D
Z
J1Y
A
E
F
D
G
J
K
Z
K1Y
0
2
4
9
L1Y
1
2
3
4
5
6
7
8
9
Length of capillary
• Direct mount
• 3 ft
• 5 ft
• 10 ft
• 15 ft
• 20 ft
• 25 ft
• 30 ft
Special design, customer inform. to be supplied
Optional 1/8” NPT or
1/4” NPT flushing
connection
777
Process
connection
M1 Y
0
2
3
4
5
6
7
8
9
N1Y
Further designs
Please add „-Z“ to Article No. and specify Order
code
Integrated flame path restriction
DP "H" flange service
Certification of calibration N.I.S.T. (20 % steps)
Material conformance certificate
Vacuum service (must be specified with HT oil)
Calculation of span of transmitter (completed
questionnaire to be attached)
Siemens FI 01 · 2015 US Edition
A0
B0
C1
C1
V0
Y0
1
2
1
2
1
5
1/231
1
© Siemens AG 2015
Pressure Measurement
Remote seals for transmitters and pressure gauges
Diaphragm seal "threaded, low-pressure design"
■ Overview
Selection and Ordering data
Article No. Order code
Diaphragm seal "threaded, low-pressure
design" MAWP 1,500 psi
with flexible armored capillary, 316 stainless
steel upper housing SITRANS P for 7MF407 7
and 7MF42 7 7 pressure (order separately)
7MF48621 7777 - 7B
777
Click on the Article No. for the online configuration in the PIA Life Cycle Portal.
Size and class
• ¼"NPT-female
• ½"NPT-female
• ¾"NPT-female
• 1"NPT-female
Special design, customer information to be
supplied
Materials and wetted parts
• SST 316L
• SST 316L with carbon pigmented Teflon lined
diaphragm1)
• SST 316L with Hastelloy C276 diaphragm
• SST 316L with PFA coated diaphragm
• Monel 400, mat. No. 2.4360
• Hastelloy C276, mat. No. 2.4819
• Hastelloy C276 lower housing with Tantalum
diaphragm
Special design, customer information to be
supplied
Diaphragm seal "threaded, low-pressure design"
■ Dimensions (Connection to ASME B16.5)
A
B
G1
Flushing port(s)
None
1 x ¼"NPT-female
2 x ¼"NPT-female
Special design, customer information to be
supplied
E
System fill
• Silicone oil DC 200-10
• Silicone oil DC 200-50
• High temperature oil (comes with metal gasket and stronger bolts)
• Halocarbon (for O2-application)
• Silicone oil M5
• Syltherm 800
• DC704 silicone oil
• Fluorolube
Special design, customer information to be
supplied
F
1
Process
connection
G2
C
DM
Diaphragm seal "threaded, low-pressure design, dimensions
G1
G2
A
B
C
DM
¼"-NPT
1.25
¼"-NPT ½"-NPT
1.25
or
5.91 4.92
3.5
1.38
½"-NPT ¾"-NPT
1"-NPT
1.75
G1 = Instrument connection
G2 = Process connection
DM = Effective diaphragm diameter
All dimensions in inches unless otherwise noted
1/232
Siemens FI 01 · 2015 US Edition
E
F
3.00
3.00
3.20
3.50
0.90
0.90
1.10
1.40
Weight
[lbs]
14.0
14.0
14.2
14.5
Length of capillary
• Direct mount
• 3 ft
• 5 ft
• 10 ft
• 15 ft
• 20 ft
• 25 ft
• 30 ft
Special design, customer information to be
supplied
A
B
C
D
Z
J1Y
A
E
F
D
G
J
K
Z
K1Y
0
2
4
9
L1Y
1
2
3
4
5
6
7
8
9
M1 Y
0
2
3
4
5
6
7
8
9
N1Y
Further designs
Please add „-Z“ to Article No. and specifiy
Order code
Integrated flame path restriction
Certification of calibration N.I.S.T. (20 % steps)
Material conformance certificate
Vacuum service (must be specified with HT oil)
Calculation of span of transmitter (completed
questionnaire to be attached)
A0
C1
C1
V0
Y0
1
1
2
1
5
© Siemens AG 2015
Pressure Measurement
Remote seals for transmitters and pressure gauges
Diaphragm seal "threaded, low-pressure design"
Selection and Ordering data
Article No. Order code
Diaphragm seal "threaded, low-pressure
design" MAWP 1,500 psi
with flexible armored capillary, 316 stainless
steel upper housing SITRANS P for 7MF44 7 7
(order separately)
7MF48631 7777 - 7B
777
Click on the Article No. for the online configuration in the PIA Life Cycle Portal.
Size and class
• ¼"NPT-female
• ½"NPT-female
• ¾"NPT-female
• 1"NPT-female
Special design, customer information to be
supplied
Materials and wetted parts
• SST 316L
• SST 316L with carbon pigmented Teflon lined
diaphragm (good upto 500 °F)
• SST 316L with Hastelloy C276 diaphragm
• SST 316L with PFA coated diaphragm (good
upto 500 °F)
• Monel 400, mat. No. 2.4360
• Hastelloy C276, mat. No. 2.4819
• Hastelloy C276 lower housing with Tantalum
diaphragm
Special design, customer information to be
supplied
Flushing port(s)
None
1 x ¼"NPT-female
2 x ¼"NPT-female
Special design, customer information to be
supplied
System fill
• Silicone oil DC 200-10
• Silicone oil DC 200-50
• High temperature oil (comes with metal gasket and stronger bolts)
• Halocarbon (for O2-application)
• Silicone oil M5
• Syltherm 800
• DC704 silicone oil
• Fluorolube
Special design, customer information to be
supplied
Length of capillary
• 3 ft
• 5 ft
• 10 ft
• 15 ft
• 20 ft
• 25 ft
• 30 ft
Special design, customer information to be
supplied
A
B
C
D
Z
J1Y
A
E
F
D
G
J
K
Z
K1Y
0
2
4
9
L1Y
1
2
3
4
5
6
7
8
9
M1 Y
2
3
4
5
6
7
8
9
N1Y
Further designs
Please add „-Z“ to Article No. and specifiy
Order code
Integrated flame path restriction
Certification of calibration N.I.S.T. (20 % steps)
Material conformance certificate
Vacuum service (must be specified with HT oil)
Calculation of span of transmitter (completed
questionnaire to be attached)
A0
C1
C1
V0
Y0
2
1
2
3
5
Siemens FI 01 · 2015 US Edition
1/233
1
© Siemens AG 2015
Pressure Measurement
Remote seals for transmitters and pressure gauges
1
Inline diaphragm seal, wafer for pressure
■ Overview
Selection and Ordering data
Article No. Order code
Inline diaphragm seals wafer assembled to
SITRANS P for 7MF40 7 7 and 7MF42 7 7
(order separately)
7MF48801 77 0 7 - 7B
777
Click on the Article No. for the online configuration in the PIA Life Cycle Portal.
Size and class
• 1 inch
class 150 to 2500
• 1 ½ inch
class 150 to 2500
• 2 inch
class 150 to 2500
• 3 inch
class 150 to 2500
• 4 inch
class 150 to 2500
Special design, customer information to be
supplied
Materials and wetted parts
• SST 316L
• SST 316L with PFA-Coating
(good up to 500 °F)
• Monel 400, mat. No. 2.4360
• Hastelloy C276, mat. No. 2.4819
• Tantal
Special design, customer information to be
supplied
Inline diaphragm seal, wafer for pressure
■ Dimensions (Connection to ASME B16.5)
System fill
• Silicone oil DC 200-10
• Silicone oil DC 200-50
• High temperature oil
• Halocarbon (for O2-application)
• Silicone oil M5
• DC704 silicone oil
• Fluorolube
Special design, customer information to be
supplied
Optional instruments connections
welded capillary connection
1/4” NPT
1/2” NPT
Length of capillary
• Direct mount
• 3 ft
• 5 ft
• 10 ft
• 15 ft
• 20 ft
• 25 ft
• 30 ft
Special design, customer information to be
supplied
Size
Class
A
MB
1"
2.4
1.12
1.5"
3.3
1.69
2"
3.7
2.15
3"
150# - 2500#
5.1
3.25
4"
5.9
4.21
5"
7.3
5.20
6"
8.5
6.26
MB = Effective internal diameter
Class = Flange rating per ASME B16.5
Size = Nominal pipe size
All dimensions in inches unless otherwise noted
L
2.36
Inline diaphragm seal, wafer for pressure, dimensions
1/234
Siemens FI 01 · 2015 US Edition
Weight
[lbs]
3.1
4.8
5.5
8.8
10.3
15.0
20.9
L
M
N
P
Q
Z
J1Y
A
D
G
J
K
Z
K1Y
1
2
3
4
5
7
8
9
M1 Y
0
2
3
4
5
6
7
8
9
N1Y
Further designs
Please add „-Z“ to Article No. and specifiy
Order code
Integrated flame path restriction
Certification of calibration N.I.S.T. (20 % steps)
Material conformance certificate
Vacuum service (must be specified with HT oil)
Calculation of span of transmitter (completed
questionnaire to be attached)
A0
C1
C1
V0
Y0
1
1
2
1
5
© Siemens AG 2015
Pressure Measurement
Remote seals for transmitters and pressure gauges
Inline diaphragm seal, wafer for pressure
Selection and Ordering data
Article No. Order code
Inline diaphragm seals wafer assembled to
SITRANS P for 7MF44 7 7 (order separately)
Click on the Article No. for the online configuration in the PIA Life Cycle Portal.
Size and class
• 1 inch
class 150 to 2500
• 1 ½ inch
class 150 to 2500
• 2 inch
class 150 to 2500
• 3 inch
class 150 to 2500
• 4 inch
class 150 to 2500
Special design, customer information to be
supplied
Materials and wetted parts
• SST 316L
• SST 316L with PFA-Coating (good up to
500 °F)
• Monel 400, mat. No. 2.4360
• Hastelloy C276, mat. No. 2.4819
• Tantal
Special design, customer information to be
supplied
System fill
• Silicone oil DC 200-10
• Silicone oil DC 200-50
• High temperature oil
• Halocarbon (for O2-application)
• Silicone oil M5
• DC704 silicone oil
• Fluorolube
Special design, customer information to be
supplied
Length of capillary
• 3 ft
• 5 ft
• 10 ft
• 15 ft
• 20 ft
• 25 ft
• 30 ft
Special design, customer information to be
supplied
7MF48831 77 0 7 - 7B
L
M
N
P
Q
Z
777
J1Y
A
D
G
J
K
Z
K1Y
1
2
3
4
5
7
8
9
M1 Y
2
3
4
5
6
7
8
9
N1Y
Further designs
Please add „-Z“ to Article No. and specifiy
Order code
Integrated flame path restriction
Certification of calibration N.I.S.T. (20 % steps)
Material conformance certificate
Vacuum service (must be specified with HT oil)
Calculation of span of transmitter (completed
questionnaire to be attached)
A0
C1
C1
V0
Y0
2
1
2
3
5
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© Siemens AG 2015
Pressure Measurement
Remote seals for transmitters and pressure gauges
1
Diaphragm seal, saddle
■ Overview
■ Dimensions (Connection to ASME B16.5)
Radius
To fit
Pipe
R
Pipe size
O.D.
1.49
2.5
3.00
1.77
3.0
3.50
2.24
4.0
4.50
2.76
5.0
5.50
3.35
6.0
6.63
4.311
8.0
8.625
5.374
10.0
10.75
6.378
12.0
12.75
7.0
14.0
14.75
G1 = Instrument connection
All dimensions in inches unless otherwise noted
G1
¼"-NPT
or
½"-NPT
female
Diaphragm seal, saddle, dimensions
Diaphragm seal, saddle
Saddle flange
Clamp ring
Upper housing
Spacer ring
Adapter
GTAW
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Siemens FI 01 · 2015 US Edition
© Siemens AG 2015
Pressure Measurement
Remote seals for transmitters and pressure gauges
Diaphragm seal, saddle
Selection and Ordering data
Article No. Order code
Diaphragm seal, saddle, MAWP 1,500 psi
with flexible armored capillary or direct mount,
316 stainless steel upper housing and assemply hardware SITRANS P for 7MF40 7 7 or
7MF42 7 7 (order separately)
7MF48901 7777 - 7B
777
Click on the Article No. for the online configuration in the PIA Life Cycle Portal.
Nominal pipe size
• Not applicable
(Retrofit for existing 7MF48 7 7)
• 2.5"
• 3"
• 4"
• 5"
• 6"
• 8"
• Retrofit 3" Conoflow (6 bolt pattern)
• Retrofit 3" M&G style (8 bolt pattern)
• Retrofit 4" Conoflow (6 bolt pattern)
• Retrofit 4" M&G style (8 bolt pattern)
Special design, customer information to be
supplied
Diaphragm material
• SST 316L
• SST 316L with carbon pigmented Teflon lined
diaphragm (good upto 500 °F)
• SST 316L with PFA coated diaphragm (good
upto 500 °F)
• Monel 400, mat. No. 2.4360
• Hastelloy C276, mat. No. 2.4819
• Tantal
Special design, customer information to be
supplied
Saddle Material
None (Retrofit order)
Carbon steel, Ni plated
SST 316L
Hastelloy C276, mat. No. 2.4819
Special design, customer information to be
supplied
System fill
• Silicone oil DC 200-10
• Silicone oil DC 200-50
• High temperature oil (comes with metal gasket and stronger bolts)
• Halocarbon (for O2-application)
• Silicone oil M5
• DC704 silicone oil
• Fluorolube
Special design, customer information to be
supplied
Length of capillary
• Direct mount
• 3 ft
• 5 ft
• 10 ft
• 15 ft
• 20 ft
• 25 ft
• 30 ft
Special design, customer information to be
supplied
N
A
B
C
D
E
G
P
Q
R
S
Z
J1Y
A
E
D
G
J
K
Z
K1Y
0
1
2
4
9
L1Y
1
2
3
4
5
7
8
9
M1 Y
0
2
3
4
5
6
7
8
9
N1Y
Further designs
Please add „-Z“ to Article No. and specifiy
Order code
Integrated flame path restriction
Certification of calibration N.I.S.T. (20 % steps)
Material conformance certificate
Vacuum service (must be specified with HT oil)
Calculation of span of transmitter (completed
questionnaire to be attached)
A0
C1
C1
V0
Y0
1
1
2
1
5
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1
© Siemens AG 2015
Pressure Measurement
Remote seals for transmitters and pressure gauges
Measuring setups
■ Measuring setups
The following pages show examples of typical measuring setups
for use of SITRANS P transmitters with and without remote seals,
such as:
• Setups for transmitters with connection of remote seals, with
associated equations for calculation.
• Questionnaires
Checking of combination between transmitter and remote seal
• Setups for transmitters without remote seals, with associated
equations for calculation
• Questionnaires
For hydrostatic level measurements
■ Installation
Remote seals of pancake design are fitted between the connection flange of the measuring point and a blind flange. Remote
seals of flanged design are fitted directly on the connection
flange of the measuring point. The respective pressure rating of
the blind flange or the flanged remote seal must be observed.
The transmitter should always be installed below the connection
flange, and below the lower connection flange in the case of differential pressure transmitters. When measuring at pressures
above atmospheric, the transmitter can also be installed above
the connection flange. When measuring at pressures below atmospheric, the transmitter must always be installed below the
connection flange, and below the lower connection flange in the
case of differential pressure transmitters.
■ Influence of ambient temperature
The capillaries between the remote seal and the transmitter
should be kept as short as possible to obtain the good transmission response. Temperature differences between the individual
capillaries or between the individual remote seals should be
avoided.
If the complete setup is exposed to temperature variations, errors result from the thermal expansion of the filling liquid in the
capillaries, in the remote seals and in the connection units of the
transmitters.
■ Notes
• When measuring separation layers, ensure that the layer is positioned between the two spigots. Also ensure that the level in
the vessel is always above the top spigot.
• When measuring density, make sure that the level of the medium remains constant. The level is usually above the top
spigot.
■ Possible combinations of transmitter and remote seal
Installation type
Transmitter
Remote seal
A/B
7MF4033 and
7MF4034
7MF4800,
7MF4810,
7MF4820,
7MF4826,
7MF4827,
7MF4840,
7MF4850,
7MF4861,
7MF4862,
7MF4880 and
7MF4890
C1/C2
7MF4233 and
7MF4234
7MF4800,
7MF4810,
7MF4820,
7MF4826,
7MF4827,
7MF4840,
7MF4850,
7MF4861,
7MF4862,
7MF4880 and
7MF4890
7MF4333 and
7MF4334
7MF4801 and
7MF4821
D
7MF4433,
7MF4434,
7MF5403 and
7MF5413
7MF4803,
7MF4823,
7MF4828,
7MF4843,
7MF4863 and
7MF4883
E
7MF4433,
7MF4434,
7MF5403 and
7MF5413
7MF4813
G/H/J
7MF4433,
7MF4434,
7MF5403 and
7MF5413
7MF4803,
7MF4823,
7MF4828,
7MF4843,
7MF4863 and
7MF4883
■ Offset of measuring range
If there is a difference in height between the two connection
flanges when measuring with two remote seals, an additional differential pressure results from the oil filling of the remote seal
capillaries. This results in an offset of the actual measuring range
and must be taken into account when adjusting the transmitter.
An offset in the measuring range also occurs when combining a
remote seal with a transmitter if the latter is not installed at the
same height as the former.
■ Transmitter output
If the level, separation layer or density increase in closed vessels, the differential pressure and the output signal of the transmitter also increase. If an inverted relationship is desired between the differential pressure and the output signal, the start-ofscale and full-scale values of the SITRANS P must be interchanged.
With open vessels, an increasing pressure is usually assigned to
an increasing level, separation layer or density.
1/238
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(vacuum-proof design
required)
1
© Siemens AG 2015
Pressure Measurement
Remote seals for transmitters and pressure gauges
Measuring setups with remote seals
■ Schematics
Types of installation for pressure and level measurements (open vessels)
Installation type A
Installation type B
Installation type A
Start-of-scale: pMA = ρFL · g · HU - ρOil · g · H1
Full-scale:
∆H
∆H
Installation type B
HO
HO
pME = ρFL · g · HO - ρOil · g · H1
Start-of-scale: pMA = ρFL · g · HU + ρOil · g · H1
HU
Full-scale:
HU
H1
pME = ρFL · g · HO + ρOil · g · H1
Legend
H1
Pressure transmitter
above the measuring point
Pressure transmitter
below the measuring point
H1 ≤ 7 m (23 ft), with halocarbon oil as filling liquid only H1 ≤ 4 m (13.1 ft)
pMA
Start-of-scale value to be set
pME
Full-scale value to be set
ρFL
Density of medium in vessel
ρOil
Density of filling oil in the capillary to the remote
seal
g
Local acceleration due to gravity
HU
Start-of-scale value
HO
Full-scale value
H1
Distance between vessel flange and pressure
trans.
Types of installation for absolute level measurements (closed vessels)
Installation type C2
Installation type C1
Installation type C1 and C2
Start-of-scale: pMA = pSTART + ρOil · g · H1
Full-scale:
pME = pEND + ρOil · g · H1
Legend
H1
Start-of-scale value to be set
pMA
pabs
pabs
H1
pME
Full-scale value to be set
pSTART
Start-of-scale value
pEND
Full-scale value
ρOil
Density of filling oil in the capillary to
the remote seal
g
Local acceleration due to gravity
H1
Distance between vessel flange and
pressure trans.
Pressure transmitter for absolute pressure always below the measuring point: H1 ≥ 200 mm (7.9 inch)
Type of installation for differential pressure and flow measurements
Installation type D
Filter monitoring
Installation type D
Start-of-scale: pMA = pSTART - ρOil · g · HV
Full-scale:
pME = pEND - ρOil · g · HV
Legend
H1
HV
H2
+
pMA
Start-of-scale value to be set
pME
Full-scale value to be set
pSTART
Start-of-scale value
pEND
Full-scale value
ρOil
Density of filling oil in the capillary
to the remote seal
g
Local acceleration due to gravity
HV
Distance between the measuring
points (spigots)
-
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© Siemens AG 2015
Pressure Measurement
Remote seals for transmitters and pressure gauges
1
Measuring setups with remote seals
Types of installation for level measurements (closed vessels)
Installation type E
Installation type E
Start-of-scale: pMA = ρFL · g · HU - ρOil · g · HV
Full-scale:
pME = ρFL · g · HO - ρOil · g · HV
Legend
∆H
HV
HO
HU
Installation type G
Installation type H
-
Start-of-scale value to be set
Full-scale value to be set
ρFL
Density of medium in vessel
ρOil
Density of filling oil in the capillary to
the remote seal
g
Local acceleration due to gravity
HU
Start-of-scale value
HO
Full-scale value
HV
Distance between the measuring
points (spigots)
-
+
H2
pMA
pME
Installation type J
+
H1
H1
∆H
HV
HO
-
H1
+
H2
HU
H2
+
below the lower measuring point
Pressure transmitter for differential pressure
above the upper measuring point, no vacuum
Installation type for vacuum applications
H1 ≤ 7 m (23 ft), with halocarbon oil as filling
liquid only H1 ≤ 4 m (13.1 ft)
between the measuring points, no vacuum
H2 ≤ 7 m (23 ft), with halocarbon oil as filling
liquid only H2 ≤ 4 m (13.1 ft)
Installation type G, H and J
Legend
Start-of-scale: pMA = ρFL · g · HU - ρOil · g · HV
pMA
Start-of-scale value to be set
g
Full-scale:
pME
Full-scale value to be set
HU
Start-of-scale value
ρFL
Density of medium in vessel
HO
Full-scale value
ρOil
Density of filling oil in the capillary to
the remote seal
HV
Distance between the measuring
points (spigots)
1/240
pME = ρFL · g · HO - ρOil · g · HV
Siemens FI 01 · 2015 US Edition
Local acceleration due to gravity
© Siemens AG 2015
Pressure Measurement
Remote seals for transmitters and pressure gauges
Measuring setups without remote seals
■ Overview
Notes
• For the separation layer measurement, the separation layer
has to be positioned between the two spigots.
Also you must make sure that the level in the container is always above the top spigot.
• When measuring density, make sure that the level of the medium remains constant. The level should be above the top
spigot
■ Schematics
Pressure transmitters for differential pressure, for flanging
Measuring setups for open containers
Level measurement
Full-scale value
Start-of-scale: pMA = ρ · g · HU
Full-scale:
pME = ρ · g · HO
Legend
pMA
HO
Start-of-scale value
ρ
HU
Start-of-scale value to be set
pME
Full-scale value to be set
ρ
Density of medium in vessel
g
Local acceleration due to gravity
HU
Start-of-scale value
HO
Full-scale value
+
Separation layer measurement
Constant level
= full-scale value
Start-of-scale: pMA = g · (HU · ρ1 + (HO - HU) · ρ2)
Full-scale:
ρ2
Legend
Separation layer
ρ1
HO
pME = ρ1 · g · HO
Start-of-scale value
HU
+
pMA
Start-of-scale value to be set
pME
Full-scale value to be set
ρ1
Density of heavier liquid
ρ2
Density of lighter liquid
g
Local acceleration due to gravity
HU
Start-of-scale value
HO
Full-scale value
Density measurement
Start-of-scale: pMA = ρMIN · g · HO
Constant level
Full-scale:
pME = ρMAX · g · HO
Legende
pMA
HO
ρ
Start-of-scale value to be set
pME
Full-scale value to be set
ρMIN
Minimum density of medium in vessel
ρMAX
Maximum density of medium in vessel
g
Local acceleration due to gravity
HO
Full-scale value in m
+
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© Siemens AG 2015
Pressure Measurement
Remote seals for transmitters and pressure gauges
1
Measuring setups without remote seals
Measuring setups for closed containers
Level measurement, Version 1
Static
pressure
Start-of-scale: ∆pMA = ρ · g · HU
Gas-filled negative
pressure line
Full-scale:
∆pME = ρ · g · HO
Legend
Maximum level
Full-scale value
Start-of-scale value
HO
HU
∆pMA
Start-of-scale value to be set
∆pME
Full-scale value to be set
ρ
Density of medium in vessel
g
Local acceleration due to gravity
HU
Start-of-scale value
HO
Full-scale value
ρ
+
-
Transmitter
reference line
Level measurement, Version 2
Static
pressure
Start-of-scale: ∆pMA = g · (HU · ρ - HV · ρ')
Constant
reference
level
Full-scale:
∆pME = g · (HO · ρ - HV · ρ')
Legend
Mamimum level
Liquid-filled negative
pressure line
Full-scale value
Start-of-scale value
ρ'
ρ
+
Start-of-scale value to be set
∆pME
Full-scale value to be set
ρ
Density of medium in vessel
ρ'
Density of liquid in the negative pressure
line (corresponding to the temperature
existing there)
HV
HO
HU
∆pMA
-
g
Local acceleration due to gravity
HU
Start-of-scale value
HO
Full-scale value
HV
Distance between the measuring points
(spigots)
Transmitter
reference line
Separation layer measurement
Static
pressure
Static
pressure
Constant level
Start-of-scale: ∆pMA = g · (HU · ρ1 + (HO - HU) · ρ2 - HV · ρ'2)
Full-scale:
Max. separation layer
∆pME = g · (HO · ρ1 - HV · ρ'2)
Legend
∆pMA
Full-scale value
Start-of-scale value
ρ'2
ρ2
HU
ρ1
-
Transmitter
reference line
Siemens FI 01 · 2015 US Edition
Density of heavier liquid with separation layer
in vessel
ρ2
Density of lighter liquid with separation layer
ρ'2
Density of liquid in the negative pressure line
(corresponding to the temperature existing
there)
+
1/242
Full-scale value to be set
ρ1
HV
HO
Start-of-scale value to be set
∆pME
g
Local acceleration due to gravity
HU
Start-of-scale value
HO
Full-scale value
HV
Distance between the measuring points
(spigots)
© Siemens AG 2015
s
Questionnaire (suitable for US market)
for hydrostatic level measurements
1
Order date: _______________________________________________
Processing date: __________________________________________
Ordering code (customer): _________________________________
Ordering code (supplier): __________________________________
Customer reference:_______________________________________
Measuring point: __________________________________________
Position:__________________________________________________
Dimensions: ______________________________________________
Pressure:
psi
Temperature:
K
Measuring range:
inch
(please mark with cross)
°F
ft
Article No. of transmitter SITRANS P DS III/P3001):
7 M F 4
–
–
–Z
Y01
Article No. of transmitter SITRANS P5001):
0
7 M F 5
–
The different pressures and temperatures (densities) in the vessel
and in the reference column result
in an offset in the start-of-scale
and full-scale values.
The calibration data are determined in addition.
It is also checked whether – as a
result of the range offset – the
ordered transmitter is suitable for
this measurement.
Please supply the following characteristic data so that we can calculate the measuring range,
start-of-scale value, full-scale value and calibration data:
Please mark type of boiler with a cross:
Closed1)
Open or not under pressure2)
Medium ____________________
Licensed boiler pressure (absolute)
Operating pressure (absolute)
_______________ psi
Lowest
Normal
_______________ psi
3)
_______________ psi
Highest
_______________ psi
Temperature of reference column (cold)
_______________ °F
Distance between measuring points (dimension according to sketch) HV = _________ ft
Measuring range4) = start-of-scale value to full-scale value
Start-of-scale value
HU =___________ ft
Full-scale value
HO =___________ ft
Position of equalizing vessel above bottom measuring
point if different from HV
Please mark pressure correction of level with a cross:
_______________ ft
No
Yes4)
1)
2)
3)
4)
Reference line filled with condensation! Falling differential pressure with increasing level.
Reference line without gas or filled with gas (air). Rising differential pressure with increasing level.
If not specified otherwise, this value is assumed as the calculation pressure of the level meter.
The input signal (differential pressure) depends on the density (pressure and temperature).
The influence is practically negligible for a lowest liquid level of 20 to 30% of the distance between the
measuring points.
If a pressure correction of the level is required, the measuring range must be the same as the
distance between the measuring points, and the transmitter is designed for the calculation pressure
of 14.5 psi (absolute). Pressure correction means: the static pressure and the temperature are measured
separately and calculated by a correction computer or measured-value computer.
Siemens FI 01 · 2015 US Edition
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© Siemens AG 2015
s
Questionnaire (suitable for US market)
Checking of transmitter/remote seal combinations
1
* Customer:___________________ Tag. No.: _____________________
* Plant: ___________________
Item No.: _____________________
* Ordering code:________________ Person responsible: ___________
* Ordering department: _____
Phone: _____________________
* Transmitter Article No. SITRANS P DS III/P300: 7MF
–1
Y
* Transmitter Article No. SITRANS P500: 7MF5
–
0 –Z
–1
V00
Article No. of diaphragm seal known?
Yes
No
* Article No. of remote seal:
* 7MF 4 9
–
–
–Z
Suffixes _______________________
Suffixes _______________________
* Or without Article No.: Process connection
* Standard:
________________________
* Nominal diameter:
________________________
* Nominal pressure:
________________________
* Constructional design:
Sandwich-type rem. seal
Flanged remote seal
Quick-release
remote seal
Clamp-on seal
Other.: ______________
* Connection:
Direct connection
Capillary on one side;
connection to:
+ side
– side
Capillaries on both sides;
Capillary length: ___ ft
* Vacuum-proof design
Yes
No
* Wetted parts materials:
________________________
* Tube:
No
Yes, __inch long
* Filling liquid
________________________
* Miscellaneous
________________________
Calculation of measuring range necessary?
No
* Range to be set:
* (without calculation)
Start-of-scale: _________ psi ( 4 mA)
Full-scale:
_________ psi (20 mA)
* Required measuring accuracy:
< . % of set span per
Error:
_________
:
_________ 18 °F change in
:
_________ temperature
Please fill in this questionnaire
and enclose with every order!
*) Values must be entered here!
Checked:
1/244
Name:
Department:
Date:
Siemens FI 01 · 2015 US Edition
Yes
* Medium ____________________________
* Density of medium: _______
* Temperature of medium:
kg/m3
Normal
________ °F
Minimum ________ °F
Maximum ________ °F
* Ambient temperature on capillaries:
Normal
________ °F
Minimum ________ °F
Maximum ________ °F
* Ambient temperature on transmitter:
Normal
________ °F
Minimum ________ °F
Maximum ________ °F
* Operating pressure referred to absolute zero: ____ psiabs
* Does a vacuum occur during startup?
No
Yes
If yes, associated temperature of medium:
________ °F
A
B C1 C2 D
* Installation type, see pages 1/239 and 1/240
E
G
H
J
* Measuring: With install. types A, B, C1, C2 and D: from ___ to ___ psi
range
With install. types A, B, G, H and J: HU = ___ inch; HO = ___ inch
* Dimensions: With install. types A, B, C1 and C2: H1 = ___ inch
With install. types D, G, H and J:
HV = ___ inch
* Start-of-scale value following calculation: _________ psi ( 4 mA)
* Full-scale value following calculation:
_________ psi (20 mA)
* Associated span:
_________ psi
< . % of set span per 18 °F
* Error to be expected:
_________
_________ change in temperature