Technical Data

D920
Flanged diaphragm seal with flush diaphragm
Main Features
„„
Pressure range from 25 mbar
to 400 bar
„„
Flush diaphragm
„„
Temperature -40 °C … 400 °C
„„
Optimized for assembly with
transmitters
„„
Class 150 to 2500
„„
NPS 2" to 4"
„„
PN10 to PN100
„„
DN50 to DN100
Applications
„„Oil & Gas / Chemical
„„Water / Waste water
„„Energy
„„Process technic
Technical Data
The flush diaphragm allows direct mounting on standardized flange
connections of pipes or tanks. With the flush diaphragm these seals
are used especially for fluids with high viscosity or a tendency to
crystallize.
Different diaphragm materials can be selected to adapt the seal to
various applications and process fluids. Only the active part of the
diaphragm is made of specific materials. The flange face is always
stainless steel.
The diaphragm seals D92x have been developed especially for the measurement of low pressure ranges in applications with high overpressure
resistance or high static pressure. They are designed for assembly with
electronic transmitters for pressure or differential pressure, which can also
be used for level or flow measurement. The D92x series cannot be used
with pressure gauges. For pressure gauges the series D82x has to be used.
The filling fluid of the measuring system has to be choosen compatible
to the application.
Min.pressure ranges See table on page 2
Temperature
-40 °C ... +400 °C
Filling liquids
Mounting
LRS4: -20 ... 60 °C (for oxygen)
LRS8: 0 ... 300 °C (for vacuum and absolute
pressure)
LRS9: -40 ... 400 °C (high temperature oil)
Other liquids on request
Direct or remote from 1.5 to 12 meters
Flange material
Stainless steel 1.4404 (AISI 316L)
Flange types
ASME B16.5 / EN1759-1:
class 150 to 2500, NPS 2" to 4".
EN1092-1:
PN 10 to 100, DN 50 to 100.
Available flange faces see table on page 3.
Other flange types on request.
Stainless steel 1.4435 (AISI 316L)
Option: Hastelloy, Uranus, Tantalum (see ordering details on page 4)
Diaphragm
Maximum pressure
According to the PN or the class of the flange
and its standardized pressure temperature
relation
Design and specifications subject to change without notice
This diaphragm seals with flanged process connection and flush
diaphragm are used to protect pressure transmitters from high temperatures, aggressive or corrosive fluids.
Materials

N°
D920

 Stainless steel 1.4404
Diaphragm

 Stainless steel 1.4435
 Hastelloy B2 (2.4617)
 Hastelloy C276 (2.4819)
 Hastelloy C4 (2.4610)
 Uranus B6 (1.4539)
 Tantalum
Capillary
(option)

 Stainless steel

2015-11-04
Flange

www.baumer.com
Data sheet A42.13
Page 1 / 4
D920
Flanged diaphragm seal with flush diaphragm
Dimensions (mm)
Minimum pressure ranges depending on the active diaphragm
diameter Ø M
Transmitters
Ø M (1)
(mm)
Absolute
0 ... 400 mbar
n/a
89
95
0 ... 25 mbar
(2)
0 ... 50 mbar
0 ... 25 mbar
(2)
0 ... 50 mbar
C
N x ØL
Gauge and differential
54
(1)
f1
(2)
Ø M according to dimension tables below.
10 mbar with specific diaphragm (see codification page 4).
ØM
Ød1
ØK
ØD
Flange dimensions (mm) ANSI B16-5 / EN 1759-1
DN
2"
(DN50)
3"
(DN80)
4"
(DN100)
Class
ØD
ØK
ØL
N
EN1759-1
C (1)
ANSI B16-5
f1 (1)
C (1)
f1 (1)
Ø d1 (1)
Ø M in mm (2)
Weight in kg
150
152
120.6
19
4
19
1.6
19.5
2
91.9
54
2.4
300
165
127
19
8
22.2
1.6
22.7
2
91.9
54
3.2
600
165
127
19
8
31.8
6.4
32.4
7
91.9
54
4.2
900/1500
216
165.1
25.4
8
44.5
6.4
45.1
7
91.9
54
10.1
2500
235
171.5
28.5
8
57.2
6.4
57.9
7
91.9
54
15.6
150
190
152.4
19
4
23.8
1.6
24.3
2
127
89
5
300
210
168.3
22.2
8
28.6
1.6
29
2
127
89
6.9
600
210
168.3
22.2
8
38.2
6.4
38.8
7
127
89
8.5
900
241
190.5
25.4
8
44.5
6.4
45.1
7
127
89
13.1
1500
267
203.2
31.8
8
54
6.4
54.7
7
127
89
19.2
150
229
190.5
19
8
23.8
1.6
24.3
2
157.2
95
7.1
300
254
200
22.2
8
31.8
1,6
32.2
2
157.2
95
11.6
600
273
215.9
25.4
8
44.5
6.4
45.1
7
157.2
95
17.3
900
292
235
31.8
8
50.8
6.4
51.5
7
157.2
95
22.1
50
80
100
(1)
(2)
PN
ØD
C (1)
ØK
ØL
N
f1 (1)
Ø d1 (1)
Ø M in mm (2)
Weight in kg
10/16
165
20
125
18
4
3
102
54
2.9
25/40
180
26
135
22
4
3
102
54
3.2
63
195
28
145
26
4
3
102
54
4.6
100
195
30
145
26
4
3
102
54
5.7
10/16
200
20
160
18
8
3
138
89
4.6
25/40
200
24
160
18
8
3
138
89
5.6
63
215
28
170
22
8
3
138
89
6.9
100
230
32
180
26
8
3
138
89
8.9
10/16
220
20
180
18
8
3
158
95
5.7
25/40
235
24
190
22
8
3
162
95
7.6
63
250
30
200
26
8
3
162
95
10
100
265
36
210
30
8
3
162
95
13.3
For raised faces, codes B, G, R.
Active diameter.
www.baumer.com
Data sheet A42.13
Page 2 / 4
2015-11-04
DN
Design and specifications subject to change without notice
Flange dimensions (mm) EN 1092-1
D920
Flanged diaphragm seal with flush diaphragm
Heatable capillary (option)
• Capillary with low-temperature controlled electric heat tracing
• Reduce influence of environmental temperature
• Improve response time for long capillary
• Decrease in effects of outside temperature:
at −40 °C capillary tube temperature over +30 °C
at +40 °C capillary tube temperature below +60 °C
• Approx. Ø 25 mm heat insulation
• Sealed outer sheath
Ordering codes for flange faces
Face Type
Flat face
Drawing
ANSI B16-5
Codes
A
Flat face
Ra = 3.2...6.3 µm
Raised face (2)
Raised face (7) (3)
(2)
Raised face
Male tongue large
Male tongue small
Female groove
Female groove large
Female groove small
Male Spigot
Male spigot large
Male spigot small (1)
G
R
H
I
Ra = 0.4...1.6 µm
(1)
(2)
Type E
O
P
Type FC
G
R
Type B1
H
I
Type C
K
L
Type D
B
C
Ra = 0.8...3.2 µm
D
Ra = 0.8...3.2 µm
M
Type E
E
Ra = 3.2...12.5 µm
O
Ra = 3.2...6.3 µm
Type J
A
Type A
Ra = 3.2...12.5 µm
Ra = 3.2...6.3 µm
Q
Codes
F
Type F
Ra = 3.2...12.5 µm
Q
N/A
Ra = 0.4...1.6 µm
Only applicable for 4"
Class 150 and 300
Class 600, 900, 1500, 2500
2015-11-04
Design and specifications subject to change without notice
(3)
Type DL
Type DS
EN 1092-1
Ra = 3.2...6.3 µm
Ra = 0.8...3.2 µm
Ra = 3.2...6.3 µm
Ring joint face
Type CL
Type CS
M
N
Ra = 3.2...6.3 µm
Ring joint face
Type B (1.6)
Type B (6.4) (3)
(2)
Ra = 0.8...3.2 µm
K
L
Ra = 0.8...3.2 µm
Female Spigot
A
Type A
Ra = 3.2...6.3 µm
Ra = 0.8...3.2 µm
Female spigot large
Female spigot small (1)
Codes
Ra = 3.2...6.3 µm
Ra = 3.2...6.3 µm
Male tongue
EN 1759-1
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Data sheet A42.13
Page 3 / 4
D920
Flanged diaphragm seal with flush diaphragm
Ordering details D920
D920
–
.
2
.
.
Model
Capillary type
D9 2 0
Direct mounting (without capillary)
St. steel tube and protection
St. steel tube and protection and white plastic ATEX sheath
St. steel tube and reinforced protection
St. steel tube and protection, heat-insulated
St. steel tube and protection, traced/heat-insulated
Capillary length
Without (direct mounting)
1.5 m
3m
4.5 m
6m
9m
12 m
Instrument connection (1)
G1/2 male
1/2 NPT male
G1/4 male
1/4 NPT male
G1/2 female
1/2 NPT female
For ABB 265 DR (D)
For ABB 265 GR - 265 VS (G)
For Honeywell STD 820/830/720/730 (D)
For Honeywell STG 740/770 (G)
For Honeywell STG 84x/87x/88x (G)
For Honeywell STA 840/740 (A)
For SIEMENS SITRANS Differential (D)
For SIEMENS SITRANS Gauge (G)
For YOKOGAWA EJX110 (low volumes) capsules M, H, V (D)
For YOKOGAWA EJX 430 (low volumes) (G)
For YOKOGAWA EJX 110 (standard flanges) capsules M, H, V (D)
For YOKOGAWA EJX 310/430 (standard flanges) (A) (G)
For YOKOGAWA EJX 440 (standard flanges) (G)
Flange standard
ANSI B16-5
EN 1092-1
EN 1759-1
Flange material
St. steel 316L (1.4404)
PN / Class
ANSI B16-5 / EN 1759-1
Class 150
Class 300
Class 600
Class 900
Class 1500
Class 2500
EN 1092-1
PN10
PN16
PN25
PN40
PN63
PN100
(1)
(2)
(3)
(4)
1
A
D
F
M
P
.
00
04
08
09
No filling
LRS4 (for Oxygen) (3)
LRS8 (vacuum oil)
LRS9 (high temperature oil)
Diaphragm coating (2)
0
1
4
7
0
E
3
F
6
9
D
3
6
2
5
L
N
H
J
A
D
E
G
7
8
F
V
P
Q
W
2
3
5
6
A
C
D
7
.
x
Without
PTFE 0.02 mm
HALAR 0.2 mm
Gold 15 µm
Diaphragm material
St. steel 316L (1.4435)
Uranus B6 (1.4539)
Hastelloy B2 (2.4617)
Hastelloy C276 (2.4819)
Hastelloy C4 (2.4610)
St. steel 316L (1.4435) (P < 25 mbar) (5)
Hastelloy C276 (2.4819) (P < 25 mbar) (5)
Tantalum (4)
Flange face type
See table page 3 (codes)
DN
7
9
V
H
K
L
ANSI B16-5 / EN 1759-1
2" (DN50)
3" (DN80)
4" (DN100)
EN 1092-1
50
80
100
.
2
4
6
2
1
2
3
4
5
6
C
D
F
G
N
J
Type of transmitter: D=Differential / G=Gauge / A=Absolute
No coating for flange facing types with groove, codes H, I, K, L, O, P, Q, C, D, F
Compulsory with option code 0765 (oxygen degreasing)
No coating on Tantalum diaphragms
Only DN80 / 3" and DN100 / 4"
2015-11-04
(5)
Filling fluid
–
Design and specifications subject to change without notice
Flanged diaphragm seal with flush diaphragm
www.baumer.com
Data sheet A42.13
Page 4 / 4