46-635 External Cage Displacer Actuated Liquid Level Switches

External Cage
Displacer Actuated
Installation and Operating Manual
Liquid
Level
Switches
Read this Manual Before Installing
This manual provides information on the External Cage
Displacer Liquid Level Switch. It is important that all
instructions are read carefully and followed in sequence.
Detailed instructions are included in the Installation section of this manual.
Conventions Used in this Manual
Certain conventions are used in this manual to convey
specific types of information. General technical material,
support data, and safety information are presented in
narrative form. The following styles are used for notes,
cautions, and warnings.
NOTES
Notes contain information that augments or clarifies
an operating step. Notes do not normally contain
actions. They follow the procedural steps to which
they refer.
Cautions
Cautions alert the technician to special conditions that
could injure personnel, damage equipment, or reduce
a component’s mechanical integrity. Cautions are also
used to alert the technician to unsafe practices or the
need for special protective equipment or specific
materials. In this manual, a caution box indicates a
potentially hazardous situation which, if not avoided,
may result in minor or moderate injury.
WARNINGS
Warnings identify potentially dangerous situations or
serious hazards. In this manual, a warning indicates an
imminently hazardous situation which, if not avoided,
could result in serious injury or death.
Safety Messages
Follow all standard industry procedures for servicing electrical equipment when working with or around high
voltage. Always shut off the power supply before touching any components.
WARNING! Explosion hazard. Do not connect or disconnect equipment unless power has been switched off or
the area is known to be non-hazardous.
Low Voltage Directive
For use in Installation Category II, Pollution Degree 2. If
equipment is used in a manner not specified by the manufacturer, protection provided by the equipment may be
impaired.
Notice of Trademark, Copyright, and Limitations
Magnetrol® & Magnetrol® logotype are registered trademarks of Magnetrol® International, Incorporated.
Copyright © 2012 Magnetrol® International, Incorporated.
All rights reserved.
Performance specifications are effective with date of issue
and are subject to change without notice. MAGNETROL
reserves the right to make changes to the product
described in this manual at any time without notice.
MAGNETROL makes no warranty with respect to the
accuracy of the information in this manual.
Warranty
All MAGNETROL mechanical level and flow controls are
warranted free of defects in materials or workmanship for
five full years from the date of original factory shipment.
If returned within the warranty period; and, upon factory inspection of the control, the cause of the claim is
determined to be covered under the warranty; then,
MAGNETROL will repair or replace the control at no cost
to the purchaser (or owner) other than transportation.
MAGNETROL shall not be liable for misapplication,
labor claims, direct or consequential damage or expense
arising from the installation or use of equipment. There
are no other warranties expressed or implied, except
special written warranties covering some MAGNETROL
products.
Quality Assurance
The quality assurance system in place at MAGNETROL
guarantees the highest level of quality throughout the
company. MAGNETROL is committed to providing
full customer satisfaction both in quality products and
quality service.
The MAGNETROL quality assurance
system is registered to ISO 9001 affirming
its commitment to known international
quality standards providing the strongest
assurance of product/service quality
available.
46-635 External Cage Displacer Actuated Liquid Level Switches
External Cage Displacer Actuated
Liquid Level Switches
Table of Contents
1.0 Introduction
1.1 Principle of Operation...........................................4
1.2 Operating Cycle ....................................................4
2.0 Installation
2.1 Unpacking.............................................................4
2.2 Critical Alarm Function ........................................5
2.3 Piping....................................................................5
2.4 Mounting ..............................................................6
2.5 Wiring...................................................................6
3.0 Preventive Maintenance
3.1 What To Do ..........................................................7
3.1.1 Keep control clean ......................................7
3.1.2 Inspect switch mechanisms, terminals, and
connections monthly ..................................8
3.1.3 Inspect entire unit periodically....................8
3.2 What To Avoid ......................................................8
4.0 Reference Information
4.1 Troubleshooting.....................................................9
4.1.1 Check switch mechanism............................9
4.1.2 Check sensing unit ...................................10
4.1.3 Check complete unit ................................10
46-635 External Cage Displacer Actuated Liquid Level Switches
4.2 Agency Approvals ................................................11
4.3 Specifications.......................................................12
4.3.1 Actuation Levels – Sealed Cage Design.....12
4.3.2 Dimensions – Sealed Cage Design............14
4.3.3 Actuation Levels –
Flanged Top Cage Design .........................16
4.3.4 Dimensions – Flanged Top Cage Design ..18
4.4 Replacement Parts ...............................................20
4.4.1 Flanged Cage Parts Identification .............20
4.4.1.1 Model C74 ....................................21
4.4.1.2 Models H15, H32 & H52.............21
4.4.1.3 Switch and housing reference.........21
4.4.2 Sealed Cage Parts Identification................22
4.4.2.1 Model B74.....................................23
4.4.2.2 Models H13, H31 & H51.............23
4.4.2.3 Switch and housing reference.........23
4.5 Model Numbers ..................................................24
4.5.1 Standard Pressure......................................24
4.5.2 High Pressure............................................26
1.0
Introduction
Displacer actuated external cage liquid level switches are
designed for service pressures up to 5000 psig (345 bar)
and liquids with specific gravities of 0.40 and above.
4
3
2
1.1
5
The design of displacer operated level switches is based
upon the principle that a magnetic field will not be affected
by non-magnetic materials such as 316 stainless steel. In
this case, the displacer moves a magnetic attraction sleeve
within a non-magnetic enclosing tube and actuates a magnetic switch mechanism. The enclosing tube provides a
pressure seal to the chamber and therefore to the process.
1
1.2
Operating Cycle
The weight of the displacer is supported by the spring.
Rising liquid level imparts buoyancy forces on the displacer
allowing the spring to compress. The attraction sleeve attached to the spring, moves upward into the field of a
permanent magnet . The movement of the magnet
toward the sleeve causes the switch to actuate. A nonmagnetic barrier tube provides a static pressure boundary
between the switch mechanism and the displacer assembly.
As the liquid level falls, the displacer lowers, moving the
attraction sleeve out of the magnetic field of the switch
mechanism. This allows the switch to again change position
and to break or make. See Figures 1 and 2.
Figure 1
4
3
2
Principle of Operation
5
2.0
Installation
Caution: If equipment is used in a manner not specified by manufacturer, protection provided by equipment may be
impaired
1
2.1
Figure 2
Unpacking
Unpack the instrument carefully. Inspect all units for
damage. Report any concealed damage to carrier within
24 hours. Check the contents of the packing slip and
purchase order. Check and record the serial number for
future reference when ordering parts.
On chambered units, remove the shipping strap and wire
assembly holding the displacer in place. This assembly
must be removed through the bottom chamber connection
before start-up.
Caution: If reshipping to another location, the displacer must again
be secured using the same strap and wire assembly.
4
46-635 External Cage Displacer Actuated Liquid Level Switches
2.2
Critical alarm function
It is recommended that for critical alarm functions, an
additional level switch be installed as a high–high or
low–low level alarm for maximum protection.
2.3
Conduit Outlet
Figure 3 shows a typical piping installation of a displacer
control to a pressure vessel. An instruction tag secured to
the control gives dimensional data on switch actuating levels referenced from center line of upper side tank connection. Position control so that actuating levels correspond
with the desired liquid level trip points in process vessel.
Pressure
Vessel
HL
Piping
LL
Shut-Off
Valve
Use pipe of sufficient strength to support the control. If
necessary, provide a stand or hanger to help support its
weight. All piping should be straight and free of “low
spots” or “pockets” so that lower liquid line will drain
towards the vessel and upper vapor line will drain toward
the control. Shut-off valves are recommended for installation between the vessel and the control. If control is to be
used with a low temperature liquid (one which will “boil”
in the float chamber if outside heat is absorbed), the
chamber and piping should be insulated. Such boiling in
the chamber will cause false level indications.
Drain Valve
Max. 12"
Figure 3
Typical Piping Arrangement
DO NOT INSULATE SWITCH MECHANISM
HOUSING.
On controls equipped with pneumatic switch assemblies,
consult bulletin on mechanism furnished for air (or gas)
piping instructions.
Caution: Operation of all buoyancy type level devices should be
done in such a way as to minimize the action of dynamic
forces on the float or displacer sensing element. Good
practice for reducing the likelihood of damage to the control is to equalize pressure across the device slowly.
Switch Series
Letter
46-635 External Cage Displacer Actuated Liquid Level Switches
Description
Bulletin
No.
B, C, D
Dry Contact Switch
42-683
F, 8
Hermetically Sealed Snap Switch
42-799
HS
Hermetically Sealed Snap Switch
42-694
J
Bleed Type Pneumatic Switch
42-685
K
Non-Bleed Type Pneumatic Switch
42-686
5
2.4
Mounting
Caution: This instrument is intended for use in Installation
Category II, Pollution Degree 2
Adjust piping as required to bring control to a vertical position. Magnetrol® controls must be mounted within three
degrees of vertical in all directions. A three degree slant is
noticeable by eye, but installation should be checked with a
spirit level on top and/or sides of float chamber.
Controls should be mounted as close to the vessel as possible. This will result in a more responsive and accurate level
change in the control. Liquid in a long line may be cooler
and more dense than liquid in the vessel causing lower level
indication in the control than actual level in the vessel.
2.5
Screw
Set
Screw
Wiring
Caution: All displacer actuated units are shipped from the factory
with the enclosing tube tightened and the switch housing
set screw locked to the enclosing tube. Failure to loosen
the set screw prior to repositioning the supply and output
connections may cause the enclosing tube to loosen,
resulting in possible leakage of the process liquid or vapor.
Screw
Figure 4
Housing Set Screws
Displacer actuated controls are shipped with the conduit
entry of the switch housing placed 180° opposite the tank
connections to simplify installation in most cases. If this
configuration is appropriate to the installation, proceed to
Step 4 to begin wiring the unit. If another configuration is
desired, the switch housing can be easily rotated by first
following Steps 1, 2, and 3.
NOTE: A switch or circuit breaker shall be installed in close proximity
to equipment and within easy reach of operator. It shall be
marked as the disconnecting device for equipment.
Internal Circuit
(Left) Switch
Close on high level
Line
Load
4
1
5
2
6
3
Internal Circuit
(Right) Switch
Load
Close on high level
Common
Common
Close on low level
Close on low level
Load
1. Loosen set screw(s) at base of switch housing. Refer to
Figure 4.
2. Switch housing may be rotated 360° to allow correct
positioning of conduit outlet.
3. Tighten set screw(s) at base of switch housing.
4. Unscrew and remove switch housing cover. The threads
have been lubricated to facilitate removal.
Load
Figure 5
Terminal Connections
DPDT Switch Mechanism
Series B, C, D, F and 8
Line
NOTE: For supply connections in installations with ambient temperature up to +70° C, use wire with a minimum rating of +75° C as
required by the process conditions. Installations with ambient
tempertures up to +80° C require wire with a minimum rating of
+85° C as required by the process conditions. Use a minimum
of 14 AWG wire for power and ground field wires.
NOTE: On high temperature applications (above +250° F [+121° C]
in float chamber), high temperature wire should be used
between control and first junction box located in a cooler area.
NOTE: Housing must be grounded via protective ground screw in
base of housing.
6
46-635 External Cage Displacer Actuated Liquid Level Switches
Internal Circuit
(Left) Switch
Close on low level
4
1
5
2
6
3
Internal Circuit
(Right) Switch
Load
Load
Close on low level
Common
Common
Close on high level
Close on high level
Line
5. The switch terminals are located next to the conduit outlet
to facilitate wiring. Bring supply wires through conduit
outlet. Route extra wire around enclosing tube under the
baffle plate, and connect them to the proper terminals.
Refer to the wiring diagram, Figure 5 or 6, or your switch
bulletin for this information.
6. Dress wiring to ensure no interference or contact with
switch, or replacement of switch housing cover.
Load
Load
OBSERVE ALL APPLICABLE ELECTRICAL CODES
AND PROPER WIRING PROCEDURES.
Prevent moisture seepage into the enclosure by installing
approved seal-drain fittings in the conduit run leading into
the unit.
Line
Figure 6
Terminal Connections
DPDT Switch Mechanism
Series HS
Caution: In hazardous areas, do not power the unit until the
conduit is sealed and the enclosure cover is screwed
down securely.
7. Replace housing cover.
8. If control has been furnished with an explosion proof or
moisture proof switch housing, it must be sealed at the
conduit outlet with a suitable compound or non-hardening
sealant to prevent entrance of air.
9. Test switch action by varying liquid level in float chamber.
NOTE: If switch mechanism fails to function properly, check vertical
alignment of control housing and consult installation bulletin
on switch mechanism furnished.
10. Check cover to base fit to be certain gasketed joint is tight.
A positive seal is necessary to prevent infiltration of moisture laden air or corrosive gasses into switch housing.
3.0
Preventive Maintenance
Periodic inspections are a necessary means to keep your
level control in good working order. This control is a safety
device to protect the valuable equipment it serves.
Therefore, a systematic program of “preventive maintenance” must be implemented when the control is placed
into service. If the following sections on “what to do” and
“what to avoid” are observed, your control will provide
reliable protection of your equipment for many years.
3.1
What to do
3.1.1 Keep control clean
Be sure the switch housing cover is always in place on the
control. This cover is designed to keep dust and dirt from
interfering with switch mechanism operation. In addition,
it protects against damaging moisture and acts as a safety
feature by keeping bare wires and terminals from being
exposed. Should the housing cover or any seals become
damaged or misplaced, obtain a replacement immediately.
46-635 External Cage Displacer Actuated Liquid Level Switches
7
3.1.2 Inspect switch mechanisms, terminals, and
connections monthly
1. Switches should be inspected for excessive wear on actuating lever or misalignment of adjustment screw at point of
contact between screw and lever. Such wear can cause false
switch actuating levels. See switch mechanism bulletin
supplied with control should switch adjustment or replacement be necessary.
2. DO NOT operate your control with defective or maladjusted switch mechanisms (refer to bulletin on switch
mechanisms furnished for service instructions.)
3. Level controls may sometimes be exposed to excessive heat
or moisture. Under such conditions, insulation on electrical
wiring may become brittle, eventually breaking or pealing
away. The resulting “bare” wires can cause short circuits.
Check wiring carefully and replace at the first sign of brittle
insulation.
4. Vibration may sometimes cause terminal screws to work
loose. Check all terminal connections to be certain that
screws are tight.
5. On units with pneumatic switches, air (or gas) lines subjected to vibration, may eventually crack or become loose
at connections causing leakage. Check lines and connections carefully and repair or replace, if necessary.
NOTE: As a matter of good practice, spare switches should be kept
on hand at all times.
3.1.3 Inspect entire unit periodically
Isolate control from vessel. Raise and lower liquid level to
check for switch contact and reset.
3.2
What to avoid
1. Never leave switch housing cover off the control longer
than necessary to make routine inspections.
2. Never place a jumper wire across terminals to “cut-out”
the control. If a “jumper” is necessary for test purposes, be
certain it is removed before placing control into service.
3. Never attempt to make adjustments or replace switches
without reading instructions carefully. Certain adjustments
provided for in level controls should not be attempted in
the field. When in doubt, consult the factory or your local
representative.
4. Never use lubricants on pivots of switch mechanisms.
A sufficient amount of lubricant has been applied at the
factory to ensure a lifetime of service. Further oiling is
unnecessary and will only tend to attract dust and dirt
which can interfere with mechanism operation.
8
46-635 External Cage Displacer Actuated Liquid Level Switches
4.0
Reference Information
4.1
Troubleshooting
Usually the first indication of improper operation is failure
of the controlled equipment to function, i.e., pump will
not start (or stop), signal lamps fail to light, etc. When
these symptoms occur, whether at time of installation or
during routine service thereafter, check the following
potential external causes first.
a. Fuses may be blown.
b. Reset button(s) may need resetting.
c. Power switch may be open.
d. Controlled equipment may be faulty.
e. Wiring leading to control may be defective.
If a thorough inspection of these possible conditions fails
to locate the trouble, proceed next to a check of the
control’s switch mechanism.
4.1.1 Check switch mechanism
1. Pull disconnect switch or otherwise disconnect power to
the control.
2. Remove switch housing cover.
3. Disconnect power wiring from switch assembly.
4. Swing magnet assembly in and out by hand to check carefully for any sign of binding. Assembly should require
minimal force to move it through its full swing.
5. If binding exists, magnet may be rubbing enclosing tube.
If magnet is rubbing, loosen magnet clamp screw and shift
magnet position. Retighten magnet clamp screw.
6. If switch magnet assembly swings freely and mechanism
still fails to actuate, check installation of control to be
certain it is within the specified three degrees of vertical.
Use spirit level on side of enclosing tube in two places, 90°
apart. Refer to Figure 3 on page 5.
7. Check microswitch continuity with ohmmeter. If switch is
damaged, replace it immediately
8. If switch mechanism is operating satisfactorily, proceed to
check sensing unit.
46-635 External Cage Displacer Actuated Liquid Level Switches
9
4.1.2 Check sensing unit
1. Check to be certain liquid is entering float chamber.
A valve may be closed or piping plugged.
2. With liquid in chamber, proceed to check level sensing
action by removing switch housing assembly and
enclosing tube.
Caution: Unit must be normalized to atmospheric pressure before
removing enclosing tube.
3. Inspect attraction sleeve and inside of enclosing tube for
excessive corrosion or solids buildup which could restrict
movement, preventing sleeve from reaching field of magnet.
4. Never change the settings of the jam nuts which position
the attraction sleeve.
5. If control has a flanged cage, remove parting flange. Check
spring and displacer assembly for freedom of movement.
Check for collapsed or liquid filled displacer. If displacer is
determined to be filled or collapsed, contact the factory.
Model
Flange Bolting
C74
180–200 ft-lbs
H15
135–150 ft-lbs
H32, H52
285–320 ft-lbs
Enclosing Tube
220–225 ft-lbs
4.1.3 Check complete unit
Reassemble unit. Reconnect power supply and carefully
actuate switch mechanism manually (using a non-conductive tool) to determine whether controlled equipment will
operate.
Caution: With electrical power on, care should be taken to avoid
contact with switch leads and connections at terminal
block.
If all components in the control are in operating condition, the trouble must be (and should be) located external
to the control. Repeat inspection of external conditions
previously described.
NOTE: If difficulties are encountered which cannot be identified,
consult the factory or your local representative for assistance.
A complete description of the trouble should be provided
along with information concerning your piping and mounting
arrangement, plus a description of your operating sequence.
Sketches or photographs showing the installation are also
beneficial.
When communicating about your control, be certain to
always specify the complete model and serial numbers.
10
46-635 External Cage Displacer Actuated Liquid Level Switches
4.2
Agency Approvals
Agency
Approved Model
Area Classification
FM
All with an electric switch mechanism and a housing
listed as TYPE 4X/7/9
Class I, Div 1, Groups C & D
Class II, Div 1, Groups E, F & G
All with an electric switch mechanism and a housing
listed as TYPE 4X/7/9 Class I, Div 1, Group B
Class I, Div 1, Groups B, C & D
Class II, Div 1, Groups E, F & G
All with a Series F, HS, or 8 electric switch
mechanism and a housing listed as CSA TYPE 4X
Class I, Div 2, Groups B, C & D
All with an electric switch mechanism and a housing
listed as TYPE 4X/7/9
Class I, Div 1, Groups C & D
Class II, Div 1, Groups E, F & G
All with an electric switch mechanism and a housing
listed as TYPE 4X/7/9 Class I, Div 1, Group B
Class I, Div 1, Groups B, C & D
Class II, Div 1, Groups E, F & G
All with an electric switch mechanism and an
ATEX housing
ATEX II 2 G EEx d IIC T6
94/9/EC
IEC Ex Ex d IIC T6
IP 66
Low Voltage Directives 2006/95/EC
Per Harmonized Standard:
EN 61010-1/1993 & Amendment No. 1
Installation Category II
Pollution Degree 2
CSA
ATEX / IEC Ex CE
IEC Installation Instructions:
The cable entry and closing devices shall be Ex d certified suitable for the conditions of use
and correctly installed.
For ambient temperatures above +55° C or for process temperatures above +150° C, suitable
heat resistant cables shall be used.
Heat extensions (between process connection and housing) shall never be insulated.
Special conditions for safe use:
When the equipment is installed in process temperatures higher than +85° C the temperature
classification must be reduced according to the following table as per IEC60079-0.
Maximum Process
Temperature
Temperature
Classification
< 85° C
T6
< 100° C
T5
< 135° C
T4
< 200° C
T3
< 300° C
T2
< 450° C
T1
These units are in conformity with IECEx KEM 05.0020X
Classification Ex d IIC T6
Tambient -40° C to +70° C
46-635 External Cage Displacer Actuated Liquid Level Switches
11
4.3
Specifications
4.3.1 Actuation Levels – Sealed Cage Design
inches (mm)
HL
HL
LL
Sealed Chamber w/NPT or Socket weld
Side/Bottom Connections
(B74, H13, H31, H51)
LL
Sealed Chamber w/NPT or Socket weld
Side/Side Connections
(H13, H31, H51)
HL
LL
Sealed Chamber
Side/Side Flange Connections
(B74 only)
HL
HL
Sealed Chamber
Side/Side Flange Connections
(H13, H31, H51)
12
LL
LL
Sealed Chamber
Side/Bottom Flange Connections
(B74, H13, H31, H51)
46-635 External Cage Displacer Actuated Liquid Level Switches
4.3
Specifications
4.3.1 Actuation Levels – Sealed Cage Design
inches (mm)
Specific Gravity
0.40
Model
Code
B74
H13
H31
H51
0.50
0.60
0.70
0.80
0.90
1.00
Process
Temp
°F (°C)
HL
LL
HL
LL
HL
LL
HL
LL
HL
LL
HL
LL
HL
LL
100
(38)
1.30
(33)
4.77
(121)
2.17
(55)
5.00
(127)
2.73
(69)
5.16
(131)
3.13
(80)
5.28
(134)
3.44
(87)
5.37
(136)
3.67
(93)
5.45
(138)
3.86
(98)
5.51
(140)
200
(93)
1.24
(31)
4.70
(119)
2.13
(54)
4.95
(126)
2.70
(69)
5.11
(130)
3.11
(79)
5.24
(133)
3.42
(87)
5.34
(136)
3.66
(93)
5.41
(137)
3.85
(98)
5.48
(139)
300
(149)
1.18
(30)
4.62
(117)
2.09
(53)
4.88
(124)
2.67
(68)
5.06
(129)
3.09
(78)
5.19
(132)
3.40
(86)
5.30
(135)
3.64
(92)
5.38
(137)
3.84
(98)
5.45
(138)
100
(38)
5.09
(129)
9.04
(230)
6.26
(159)
9.50
(241)
7.04
(179)
9.81
(249)
7.59
(193)
10.03
(255)
8.01
(203)
10.20
(259)
8.33
(212)
10.33
(262)
8.59
(218)
10.43
(265)
200
(93)
4.73
(120)
8.63
(219)
5.97
(152)
9.17
(233)
6.79
(172)
9.54
(242)
7.38
(187)
9.80
(249)
7.82
(199)
9.99
(254)
8.17
(208)
10.14
(258)
8.44
(214)
10.27
(261)
300
(149)
4.31
(109)
8.15
(207)
5.63
(143)
8.79
(223)
6.51
(165)
9.22
(234)
7.14
(181)
9.53
(242)
7.62
(194)
9.76
(248)
7.98
(203)
9.93
(252)
8.28
(210)
10.08
(256)
400
(204)
4.06
(103)
7.69
(195)
5.25
(133)
8.31
(211)
6.19
(157)
8.81
(224)
6.88
(175)
9.19
(233)
7.38
(187)
9.50
(241)
7.75
(197)
9.69
(246)
8.06
(205)
9.88
(251)
500
(260)
n/a
n/a
4.81
(122)
7.88
(200)
5.81
(148)
8.44
(214)
6.56
(167)
8.88
(226)
7.06
(179)
9.19
(233)
7.50
(191)
9.44
(240)
7.88
(200)
9.63
(245)
100
(38)
3.06
(78)
6.50
(165)
4.63
(118)
7.44
(189)
5.69
(145)
8.06
(205)
6.44
(164)
8.50
(216)
6.94
(176)
8.88
(226)
7.38
(187)
9.13
(232)
7.75
(197)
9.31
(236)
200
(93)
n/a
n/a
4.06
(109)
6.81
(181)
5.19
(138)
7.56
(198)
6.00
(157)
8.06
(211)
6.56
(171)
8.44
(219)
7.06
(1.83)
8.75
(227)
7.44
(192)
9.00
(232)
300
(149)
n/a
n/a
3.38
(86)
6.19
(157)
4.63
(118)
7.00
(178)
5.50
(140)
7.56
(192)
6.19
(157)
8.06
(205)
6.69
(170)
8.38
(213)
7.13
(181)
8.63
(219)
400
(204)
n/a
n/a
n/a
n/a
4.06
(103)
6.38
(162)
5.00
(127)
7.06
(179)
5.75
(146)
7.56
(192)
6.31
(160)
7.94
(202)
6.75
(171)
8.25
(210)
500
(260)
n/a
n/a
n/a
n/a
3.38
(86)
5.69
(145)
4.44
(113)
6.44
(164)
5.25
(133)
7.06
(179)
5.88
(149)
7.50
(191)
6.38
(162)
7.88
(200)
100
(38)
2.75
(70)
6.25
(159)
4.31
(109)
7.19
(183)
5.38
(137)
7.75
(197)
6.13
(156)
8.19
(208)
6.63
(168)
8.56
(217)
7.06
(179)
8.81
(224)
7.44
(189)
9.00
(229)
200
(93)
n/a
n/a
3.75
(95)
6.56
(167)
4.88
(124)
7.25
(184)
5.69
(145)
7.81
(198)
6.31
(160)
8.19
(208)
6.75
(171)
8.50
(216)
7.13
(181)
8.69
(221)
300
(149)
n/a
n/a
3.13
(80)
5.88
(149)
4.38
(111)
6.69
(170)
5.25
(133)
7.31
(186)
5.88
(149)
7.75
(197)
6.44
(164)
8.13
(207)
6.81
(173)
8.38
(213)
400
(204)
n/a
n/a
n/a
n/a
3.75
(95)
6.06
(154)
4.75
(121)
6.75
(171)
5.44
(138)
7.25
(184)
6.00
(152)
7.69
(195)
6.50
(165)
8.00
(203)
500
(260)
n/a
n/a
n/a
n/a
3.13
(80)
5.38
(137)
4.19
(106)
6.19
(157)
4.94
(125)
6.75
(171)
5.56
(141)
7.19
(183)
6.06
(154)
7.56
(192)
Levels ±0.25" (6 mm)
46-635 External Cage Displacer Actuated Liquid Level Switches
13
4.3
Specifications
4.3.2 Dimensions – Sealed Cage Design
inches (mm)
F
F
G
G
7.94*
(201)
7.94*
(201)
E Plugged
E Plugged
E
E
HL
C
F
LL
HL
C
Rotation
clearance
G
LL
A
A
7.94
(201)
E
E
plugged
Bottom
connection
D
B
B
1" NPT
drain
Sealed Chamber w/NPT or Socket weld
Side/Bottom Connections
(B74, H13, H31, H51)
HL
Sealed Chamber w/NPT or Socket weld
Side/Side Connections
(H13, H31, H51)
LL
C
A
F
G
F
G
7.94*
(201)
B
7.94*
(201)
E Plugged
E Plugged
E
Sealed Chamber
Side/Side Flange Connections
(B74 only)
E
HL
HL
C
LL
LL
C
A
A
D
1" NPT
drain
B
B
Sealed Chamber
Side/Bottom Flange Connections
(B74, H13, H31, H51)
Sealed Chamber
Side/Side Flange Connections
(H13, H31, H51)
Conduit Connections E
Electric Switches:
Type 4X/7/9:
Group B:
1" NPT
1" NPT
Pneumatic Switches:
NEMA 1:
14
⁄4" NPT
Housing
NEMA 1
TYPE 4X/7/9*
TYPE 4X/7/9 Group B*
F
G
4.69 (119) 5.00 (127)
5.93 (151)
3.78 (96)
1
* These dimensions increase by 2.19 (56) when used
with Series HS switches with terminal blocks.
46-635 External Cage Displacer Actuated Liquid Level Switches
4.3
Specifications
4.3.2 Dimensions – Sealed Cage Design
inches (mm)
Dimensions – Upper Side/Bottom
NPT or SW
Model Connection
Code
Size
A
B
1"
B74
H13
H31
1–1 ⁄2"
8.32 (211)
3.69 (94)
2"
3.81 (97)
1"
2.77 (70)
1–1 ⁄2"
1
14.25 (362)
3.19 (81)
A
10.56 (268)
B
C
12.87 (327) 6.38 (162) 15.12 (384)
12.56 (319) 6.61 (168) 14.81 (376)
11.56 (295) 12.43 (316) 6.68 (170) 14.69 (373)
6.39 (162)
20.63 (524) 17.75 (451) 6.69 (170) 24.12 (613)
2"
3.31 (84)
6.81 (173)
1"
4.40 (112)
7.90 (201)
1–1 ⁄2"
1
14.25 (362) 4.53 (115) 21.13 (537) 17.50 (444) 7.84 (199) 24.38 (619)
2"
1"
H51
C
3.27 (83)
1
Flanges
1–11⁄2"
4.91 (125)
10.00 (254)
4.50 (114)
8.00 (203)
15.60 (396) 4.63 (118) 23.01 (584) 19.47 (495) 7.93 (201) 26.89 (683)
2"
5.00 (127)
10.00 (254)
Dimensions – Side/Side
NPT or SW
Model Connection
Code
Size
A
Std.
14"
B
Flanges
C
Std.
14"
D
1–11⁄2"
n/a
n/a
n/a
n/a
n/a
n/a
H31
H51
n/a
2.77
(70)
1"
1–11⁄2"
13.31
(338)
13.18
(335)
2"
H13
14"
13.62
(346)
1"
B74
A
Std.
11.50
(292)
14.00
(356)
3.19
(81)
B
6.38
(162)
15.88
(403)
6.61
(168)
15.56
(395)
6.68
(170)
15.44
(392)
20.63
(524)
23.12
(587)
2.75
(70)
11.50
(292)
14.00
(356)
6.69
(170)
3.31
(84)
6.81
(173)
1"
4.40
(112)
7.90
(201)
11.50
(292)
14.00
(356)
4.53
(115)
21.13
(537)
23.63
(600)
2.75
(70)
11.50
(292)
14.00
(356)
7.84
(199)
2"
4.91
(125)
10.00
(254)
1"
4.50
(114)
8.00
(203)
1–11⁄2"
2"
11.64
(296)
14.00
(356)
4.63
(118)
14"
D
n/a
n/a
20.63
(524)
23.12
(587)
2.75
(70)
21.13
(537)
23.63
(600)
2.75
(70)
23.01
(584)
23.57
(599)
3.96
(101)
6.39
(162)
2"
1–11⁄2"
C
Std.
23.01
(584)
5.00
(127)
46-635 External Cage Displacer Actuated Liquid Level Switches
23.57
(599)
3.96
(101)
11.64
(296)
14.00
(356)
7.93
(201)
10.00
(254)
15
4.3
Specifications
4.3.3 Actuation Levels – Flanged Top Cage Design
inches (mm)
HL
LL
HL
Flanged Top Chamber w/NPT or
Socket weld Side/Bottom Connections
(C74, H15, H32, H52)
LL
Flanged Top Chamber w/NPT or
Socket weld Side/Side Connections
(H15, H32, H52)
HL
LL
Flanged Top Chamber
Side/Side Flange Connections
(C74 only)
HL
LL
HL
Flanged Top Chamber
Side/Bottom Flange Connections
(C74, H15, H32, H52)
16
LL
Flanged Top Chamber
Side/Side Flange Connections
(H15, H32, H52)
46-635 External Cage Displacer Actuated Liquid Level Switches
4.3
Specifications
4.3.3 Actuation Levels – Flanged Top Cage Design
inches (mm)
Specific Gravity
0.40
Model
Code
C74
H15
H32
H52
0.50
0.60
0.70
0.80
0.90
1.00
Process
Temp
°F (°C)
HL
LL
HL
LL
HL
LL
HL
LL
HL
LL
HL
LL
HL
LL
100
(38)
4.38
(111)
8.24
(209)
5.56
(141)
8.74
(222)
6.35
(161)
9.07
(230)
6.92
(176)
9.31
(236)
7.34
(186)
9.49
(241)
7.67
(195)
9.63
(245)
7.94
(202)
9.74
(247)
200
(93)
4.01
(102)
7.83
(199)
5.27
(134)
8.41
(214)
6.11
(155)
8.80
(224)
6.71
(170)
9.08
(231)
7.16
(182)
9.28
(236)
7.51
(191)
9.44
(240)
7.79
(198)
9.57
(243)
300
(149)
3.59
(91)
7.44
(189)
5.00
(127)
8.04
(204)
5.83
(148)
8.49
(216)
6.47
(164)
8.81
(224)
6.95
(177)
9.05
(230)
7.32
(186)
9.24
(235)
7.62
(194)
9.39
(239)
400
(204)
n/a
n/a
4.63
(118)
7.62
(194)
5.52
(140)
8.14
(207)
6.25
(159)
8.51
(216)
6.72
(171)
8.79
(223)
7.12
(181)
9.00
(229)
7.50
(191)
9.18
(233)
500
(260)
n/a
n/a
4.15
(105)
7.15
(182)
5.18
(132)
7.75
(197)
5.91
(150)
8.18
(208)
6.46
(164)
8.50
(216)
6.89
(175)
8.75
(222)
7.23
(184)
8.94
(227)
100
(38)
2.47
(63)
5.93
(151)
3.90
(99)
6.74
(171)
4.86
(123)
7.29
(185)
5.54
(141)
7.67
(195)
6.05
(154)
7.96
(202)
6.44
(164)
8.19
(208)
6.76
(172)
8.37
(213)
200
(93)
2.12
(54)
5.54
(141)
3.62
(92)
6.43
(163)
4.62
(117)
7.02
(178)
8.34
(136)
7.45
(189)
5.87
(149)
7.77
(197)
6.29
(160)
8.02
(204)
6.62
(168)
8.21
(209)
300
(149)
n/a
n/a
3.30
(84)
6.07
(154)
4.36
(111)
6.73
(171)
5.11
(130)
7.19
(183)
5.67
(144)
7.55
(192)
6.11
(155)
7.82
(199)
6.46
(164)
8.04
(204)
400
(204)
n/a
n/a
2.94
(133)
5.63
(211)
4.00
(157)
6.38
(224)
4.81
(175)
6.88
(233)
5.44
(187)
7.25
(241)
5.88
(197)
7.56
(246)
6.25
(205)
7.81
(251)
500
(260)
n/a
n/a
2.50
(64)
5.19
(132)
3.69
(94)
6.00
(152)
4.56
(116)
6.56
(167)
5.19
(132)
7.00
(178)
5.69
(145)
7.31
(186)
6.06
(154)
7.63
(194)
100
(38)
2.75
(70)
6.25
(159)
4.31
(109)
7.19
(183)
5.38
(137)
7.75
(197)
6.13
(156)
8.19
(208)
6.63
(168)
8.56
(217)
7.06
(179)
8.81
(224)
7.44
(189)
9.00
(229)
200
(93)
n/a
n/a
3.75
(95)
6.56
(167)
4.88
(124)
7.25
(184)
5.69
(145)
7.81
(198)
6.31
(160)
8.19
(208)
6.75
(171)
8.50
(216)
7.13
(181)
8.69
(221)
300
(149)
n/a
n/a
3.13
(80)
5.88
(149)
4.38
(111)
6.69
(170)
5.25
(133)
7.31
(186)
5.88
(149)
7.75
(197)
6.44
(164)
8.13
(207)
6.81
(173)
8.38
(213)
400
(204)
n/a
n/a
n/a
n/a
3.75
(95)
6.06
(154)
4.75
(121)
6.75
(171)
5.44
(138)
7.25
(184)
6.00
(152)
7.69
(195)
6.50
(165)
8.00
(203)
500
(260)
n/a
n/a
n/a
n/a
3.13
(80)
5.38
(137)
4.19
(106)
6.19
(157)
4.94
(125)
6.75
(171)
5.56
(141)
7.19
(183)
6.06
(154)
7.56
(192)
100
(38)
2.75
(70)
6.25
(159)
4.31
(109)
7.19
(183)
5.38
(137)
7.75
(197)
6.13
(156)
8.19
(208)
6.63
(168)
8.56
(217)
7.06
(179)
8.81
(224)
7.44
(189)
9.00
(229)
200
(93)
n/a
n/a
3.75
(95)
6.56
(167)
4.88
(124)
7.25
(184)
5.69
(145)
7.81
(198)
6.31
(160)
8.19
(208)
6.75
(171)
8.50
(216)
7.13
(181)
8.69
(221)
300
(149)
n/a
n/a
3.13
(80)
5.88
(149)
4.38
(111)
6.69
(170)
5.25
(133)
7.31
(186)
5.88
(149)
7.75
(197)
6.44
(164)
8.13
(207)
6.81
(173)
8.38
(213)
400
(204)
n/a
n/a
n/a
n/a
3.75
(95)
6.06
(154)
4.75
(121)
6.75
(171)
5.44
(138)
7.25
(184)
6.00
(152)
7.69
(195)
6.50
(165)
8.00
(203)
500
(260)
n/a
n/a
n/a
n/a
3.13
(80)
5.38
(137)
4.19
(106)
6.19
(157)
4.94
(125)
6.75
(171)
5.56
(141)
7.19
(183)
6.06
(154)
7.56
(192)
Levels ±0.25" (6 mm)
46-635 External Cage Displacer Actuated Liquid Level Switches
17
4.3
Specifications
4.3.4 Dimensions – Flanged Top Cage Design
inches (mm)
F
F
G
7.94*
(201)
G
7.94*
(201)
E Plugged
E
E Plugged
E
F
G
HL
C
7.94
(201)
LL
E
HL
C
A
LL
A
E
Plugged
D
Bottom
connection
B
1'' NPT
drain
HL
LL
C
Flanged Top Chamber w/NPT or
Socket weld Side/Bottom Connections
(C74, H15, H32, H52)
A
B
Flanged Top Chamber w/NPT or
Socket weld Side/Side Connections
(H15, H32, H52)
F
G
F
G
7.94*
(201)
E Plugged
7.94*
(201)
B
E
Flanged Top Chamber
Side/Side Flange Connections
(C74 only)
HL
C
E Plugged
E
LL
HL
C
LL
A
A
D
B
1" NPT
drain
Flanged Top Chamber
Side/Bottom Flange Connections
(C74, H15, H32, H52)
Flanged Top Chamber
Side/Side Flange Connections
(H15, H32, H52)
Conduit Connections E
Electric Switches:
Type 4X/7/9:
Group B:
1" NPT
1" NPT
Pneumatic Switches:
NEMA 1:
18
B
⁄4" NPT
Housing
NEMA 1
TYPE 4X/7/9*
TYPE 4X/7/9 Group B*
F
G
4.69 (119) 5.00 (127)
5.93 (151)
3.78 (96)
1
* These dimensions increase by 2.19 (56) when used
with Series HS switches with terminal blocks.
46-635 External Cage Displacer Actuated Liquid Level Switches
4.3
Specifications
4.3.4 Dimensions – Flanged Top Cage Design
inches (mm)
Dimensions – Upper Side/Bottom
NPT or SW
Model Connection
Code
Size
C74
300#
C74
600#
B
C
1"
15.65 (398)
2.77 (70)
22.69 (576)
1
1–1 ⁄2"
15.77 (401)
3.19 (81)
22.81 (579) 18.33 (466) 6.19 (157) 25.38 (645)
2"
15.90 (404)
3.31 (84)
22.94 (583)
6.25 (159)
1"
H32
H52
A
B
C
15.65 (398)
2.77 (70)
23.06 (586)
5.45 (138)
5.45 (138)
1
1–1 ⁄2"
15.77 (401)
3.19 (81)
23.19 (589) 18.33 (466) 6.19 (157) 26.38 (670)
2"
15.90 (404)
3.31 (84)
23.31 (592)
1"
H15
Flanges
A
1–1 ⁄2"
1
3.62 (89)
14.85 (377)
3.69 (91)
2"
3.81 (97)
1"
4.40 (112)
1–1 ⁄2"
1
4.91 (125)
1"
4.50 (114)
1–1 ⁄2"
23.12 (587) 18.33 (466) 9.50 (241) 26.63 (676)
14.25 (362) 4.53 (115) 24.25 (616) 17.50 (444) 10.00 (254) 27.51 (699)
2"
1
6.25 (159)
15.60 (396) 4.63 (118) 25.33 (643) 19.21 (488) 10.00 (254) 28.96 (736)
2"
5.00 (127)
Dimensions – Side/Side
NPT or SW
Model Connection
Code
Size
A
Std.
14"
B
Flanges
C
Std.
14"
D
A
Std.
14"
1"
C74
300#
1–11⁄2"
2"
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
18.97
(482)
n/a
23.12
(587)
25.63
(651)
3.35
(85)
11.50
(292)
14.00
(356)
9.50
(241)
23.12
(587)
25.63
(651)
3.35
(85)
24.25
(616)
26.76
(680)
2.75
(70)
11.50
(292)
14.00
(356)
10.00
(254)
24.25
(616)
26.76
(680)
2.75
(70)
25.33
(643)
27.71
(704)
3.96
(101)
11.64
(296)
14.00
(356)
10.00
(254)
25.33
(643)
27.71
(704)
3.96
(101)
11.50
(292)
14.00
(356)
11.50
(292)
14.00
(356)
11.64
(296)
14.00
(356)
1"
1–11⁄2"
n/a
18.97
(482)
2"
H52
26.38
(670)
n/a
1"
1–11⁄2"
n/a
n/a
2"
H32
n/a
n/a
1"
1–11⁄2"
26.00
(660)
n/a
2"
H15
D
14"
n/a
1"
1–11⁄2"
5.45
(138)
6.19
(157)
6.25
(159)
5.45
(138)
6.19
(157)
6.25
(159)
C
Std.
n/a
2"
C74
600#
B
3.62
(92)
3.69
(94)
3.81
(97)
4.40
(112)
4.53
(115)
4.91
(125)
4.50
(114)
4.63
(115)
5.00
(127)
46-635 External Cage Displacer Actuated Liquid Level Switches
19
4.4
Replacement Parts
1
7
3
4
5
6
2
11
8
12
10
9
15
14
13
4.4.1 Flanged Cage Parts Identification
Item
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
20
Description
Housing cover
Housing base
Switch mechanism
Attraction sleeve
Jam nuts
Lock washer
Enclosing tube
E-Tube gasket
Flange
Flange gasket
Studs
Nuts
Displacer
Spring/stem assembly
Screw
46-635 External Cage Displacer Actuated Liquid Level Switches
4.4.1.1 Model C74
300# C74
Housing cover
Housing base
Switch mechanism
E-tube kit: includes items 7 & 8
E-tube gasket
Flange gasket
Displacer assembly
Inconel® spring/stem kit: includes items 4, 5, 6, 8, 10, 14 & 15
316 SS spring/stem kit: includes items 4, 5, 6, 8, 10, 14 & 15
600# C74
See below
See below
See below
089-5933-002
089-5956-001
012-1204-001
012-1204-001
012-1204-019
012-1204-019
089-6137-001
089-6138-001
089-5321-001
089-5322-001
089-5323-001
089-5324-001
4.4.1.2 Models H15, H32 & H52
Flanged cage
Housing cover
Housing base
Switch mechanism
Attraction sleeve kit (standard sleeve):
includes items 4, 5, 6 & 8
Attraction sleeve kit (sheathed sleeve):
includes items 4, 5, 6 & 8
E-tube kit: includes items 7 & 8
E-tube gasket:
Head flange kit: includes items 8, 9, 10, 11 & 12
Flange gasket
Displacer kit*: includes items 10 & 13
Inconel spring/stem kit*:
includes items 4, 5, 6, 8, 10, 14 & 15
316 SS spring/stem kit*:
includes items 4, 5, 6, 8, 10, 14 & 15
H15
H32
See below
See below
See below
H52
089-3403-001
089-3403-001
089-3403-002
089-3403-003
089-5956-001
012-1204-001
089-4240-001
012-1204-003
089-6135-001
089-3403-003
089-5956-001
012-1204-001
089-4240-002
012-1204-004
089-6135-004
n/a
089-5956-002
012-1204-001
089-4240-003
012-1204-005
089-6135-005
089-5338-001
Consult Factory
Consult Factory
089-5338-004
n/a
n/a
* Removal of displacer from stem can result in damage to one or both
parts. It is recommended that both the displacer and the spring and
stem kits be purchased if one or the other require replacement.
4.4.1.3 Switch and housing reference
Dry contact
Hermetically sealed
Hermetically sealed
Bleed type pneumatic
Non-bleed type pneumatic
46-635 External Cage Displacer Actuated Liquid Level Switches
Series Type
B, C, D
F, 8
HS
J
K
Bulletin#
42-683
42-799
42-694
42-685
42-486
21
4.4 Replacement Parts
1
3
5
6
2
7
9
4
8
4.4.2 Sealed Cage Parts Identification
Item
1
2
3
4
5
6
7
8
9
22
Description
Housing cover
Housing base
Switch mechanism
Attraction sleeve
Jam nuts
Lock washer
Enclosing tube
E-Tube gasket
Assist spring (B74 only)
46-635 External Cage Displacer Actuated Liquid Level Switches
4.4.2.1 Model B74
Housing cover
Housing base
Switch mechanism
Attraction sleeve (standard)
Attraction sleeve (sheathed and 304 or 316 stainless steel materials)
Jam nuts (5 required)
Lock washer
Washer (2 required) (not required with standard attraction sleeve)
Enclosing tube (standard or sheathed)
Enclosing tube (304 or 316 stainless steel materials)
E-Tube gasket
See below
See below
See below
032-4202-002
032-4502-001
010-2107-001
010-3359-001
010-3359-009
Z32-6302-001
Z32-6325-002
012-1204-001
4.4.2.2 Models H13, H31 & H51
Housing cover
Housing base
Switch mechanism
Attraction sleeve kit (standard sleeve):
includes items 4, 5, 6 & 8
Attraction sleeve kit (sheathed sleeve):
includes items 4, 5, 6 & 8
E-tube kit: includes items 7 & 8
E-tube gasket
Model H13
Model H31
See below
See below
See below
Model H51
089-3403-001
089-3403-001
089-3403-002
089-3403-003
089-5956-001
012-1204-001
089-3403-003
089-5956-001
012-1204-001
n/a
089-5956-002
012-1204-001
4.4.2.3 Switch and housing reference
Dry contact
Hermetically sealed
Hermetically sealed
Bleed type pneumatic
Non-bleed type pneumatic
46-635 External Cage Displacer Actuated Liquid Level Switches
Series Type
B, C, D
F, 8
HS
J
K
Bulletin#
42-683
42-799
42-694
42-685
42-486
23
4.5
Model Numbers
4.5.1 Standard Pressure
SPECIFIC GRAVITY AND PRESSURE RATING CODE
Model
Cage
Style
Cage
Material
Pressure Rating at given Temperature – psi (bar)
+100° F
+300° F
+500° F (+38° C)
(+149° C)
(+260° C)
1480
1315
n/a
(102)
(91)
1440
1200
n/a
(99)
(83)
1440
1240
n/a
(99)
(85)
1500
1500
1350
(103)
(103)
(93)
740
740
740
(51)
(51)
(51)
1480
1400
1190
(102)
(97)
(82)
1500
1500
1350
(103)
(103)
(93)
Minimum
S.G.
Carbon Steel
B74
304 Stainless Steel
B74
0.40
Sealed
B74
316 Stainless Steel
H13
Carbon Steel
C74
(300#)
C74
(600#)
See Chart
Below
300# Carbon steel
Flanged
See Chart
Below
600# Carbon steel
H15
Carbon steel
Minimum Specific Gravity
Up to Temperature Shown
Model
+100° F
(+38° C)
+200° F
(+93° C)
+300° F
(+149° C)
+400° F
(+204° C)
+500° F
(+260° C)
H13
0.40
0.40
0.40
0.41
0.44
H15
0.40
0.43
0.46
0.48
0.50
C74
0.40
0.40
0.40
0.42
0.44
Sleeve
400 SS
400 SS
316 SS
316 SS
316 SS
Spring Trim
Inconel & 316 SS
316 SS
Inconel & 316 SS
Inconel & 316 SS
Inconel & 316 SS
MATERIALS OF CONSTRUCTION
Code
1
2
2
3
4
Applicable Models
B74, C74, H13, H15
H13, H15
B74, C74
B74
B74
Cage
Carbon Steel
Carbon Steel
Carbon Steel
304 Stainless Steel
316 Stainless Steel
TANK CONNECTION TYPE AND SIZE
B74
1" 11⁄2"
C74 300 lb
2"
1"
11⁄2"
2"
11⁄2"
2"
H13 & H15
1"
11⁄2" 2"
Connection Type
B20 C20 D20 B70 C70 D70 B90 C90 D90 B20 C20 D20
NPT
B30 C30 D30 B80 C80 D80 B01 C01 D01 B30 C30 D30
Socketweld
N30 P30 Q30
—
—
—
N40 P40 Q40 N40 P40 Q40
N50 P50 Q50
—
—
—
N30 P30 Q30 150 lb ANSI flanges
—
—
—
N40 P40 Q40 300 lb ANSI flanges
—
—
—
—
—
—
—
—
—
—
—
—
B40 C40 D40
—
—
—
—
—
—
—
—
—
B44 C44 D44
—
—
—
—
—
—
—
—
—
B50 C50 D50
—
—
—
—
—
—
—
—
—
B54 C54 D54
—
—
—
—
—
—
S30 T30 V30
—
—
—
—
—
—
S34 T34 V34
—
—
—
S40 T40 V40
—
—
—
S44 T44 V44
S30 T30 V30
—
—
—
S40 T40 V40 S40 T40 V40
—
—
—
S50 T50 V50
—
24
C74 600 lb
1"
—
—
—
—
—
—
—
—
—
—
—
C/C
Location
Std
side/bottom
N50 P50 Q50 N50 P50 Q50 600 lb ANSI flanges
S50 T50 V50 S50 T50 V50
—
—
—
S54 T54 V54
NPT
Socketweld
150 lb ANSI flanges
300 lb ANSI flanges
600 lb ANSI flanges
Std
14"
Std
14"
Std
14"
side/side
Std
14"
Std
14"
46-635 External Cage Displacer Actuated Liquid Level Switches
4.5
Model Numbers
4.5.1 Standard Pressure (continued)
ELECTRIC SWITCH MECHANISM AND ENCLOSURE TYPE 4X/7/9 Aluminum Enclosure
Maximum Process Temperature ° F (° C)
One
Set Point
Series B Snap Switch
250
(121)
Series C Snap Switch
Switch Description Class I, Div. 1,
Groups C & D
Class I, Div. 1,
Group B
ATEX
Ex II 2G
EEx d IIC T6
SPDT
DPDT
BKQ
BNQ
BKS
BNS
BA9
BB9
450
(232)
SPDT
DPDT
CKQ
CNQ
CKS
CNS
CA9
CB9
Series D Snap Switch for
DC Current Application
250
(121)
SPDT
DPDT
DKQ
DNQ
DKS
DNS
DA9
DB9
Series F Hermetically Sealed
Snap Switch
500
(260)
SPDT
DPDT
FKQ
FNQ
FKS
FNS
FA9
FB9
SPDT
DPDT
HMC
HMF
SPDT
DPDT
SPDT
DPDT
Series HS 5 Amp Hermetically Sealed Snap Switch w/Wiring Leads
Series HS 5 Amp Hermetically Sealed Snap Switch w/Terminal Block
Series 8 Hermetically Sealed
Snap Switch
500 (260)
500 (260)
500
(260)
HM3
HM7
HEK HET HM4
HM8
HA9
HB9
8KQ
8NQ
8KS
8NS
8A9
8B9
N/A
PNEUMATIC SWITCH MECHANISM AND ENCLOSURE
Switch
Description
Maximum
Supply
Pressure
Series J
100 psig
(7 bar)
Bleed Type
60 psig
(4 bar)
Series k
Non-Bleed
100 psig
(7 bar)
Maximum
Process
Temperature
+400° F
(+204° C)
+400° F
(+204° C)
Bleed
Orifice
Diameter
NEMA 1
B74,C74-1,
300# C74-2
H13, H15
600# C74-2
.063
(1.6 mm)
JDE
JKE
JKE
.094
(2.4 mm)
JEE
JLE
JLE
—
KOE
KOE
KPE
Consult factory for temperatures up to +750° F (+399° C).
Maximum temperature rating +200° F (+93° C) with type 316 SS spring.
Consult factory for TYPE 4X/7/9 cast iron housings.
Uncontrolled housing heater or drain available in TYPE 4X/7/9 enclosures.
Consult factory for switch codes.
Process temperature based on +100° F (+38° C) ambient.
HS switch not available on 600# C74 model with materials of construction
code –2.
On condensing applications, temperature down-rated to +400° F (204° C)
process at +100° F (+38° C) ambient.
CSA approval does not apply to Series HE switches.
46-635 External Cage Displacer Actuated Liquid Level Switches
25
4.5
Model Numbers
4.5.2 High Pressure
Model
Cage
Style
Cage
Material
Minimum
S.G.
Carbon Steel
See Chart
Below
Pressure Rating at given Temperature – psi (bar)
+100° F
+300° F
+500° F (+38° C)
(+149° C)
(+260° C)
4150
3920
—
(286)
(270)
5000
5000
4475
(345)
(345)
(309)
4150
3920
—
(286)
(270)
5000
5000
4475
(345)
(345)
(309)
H31
Sealed
H51
H32
Flanged
H52
Minimum Specific Gravity
Up to Temperature Shown
+100° F
(+38° C)
+200° F
(+93° C)
+300° F
(+149° C)
+400° F
(+204° C)
+500° F
(+260° C)
0.40
0.44
0.47
0.51
0.56
MATERIALS OF CONSTRUCTION
No.
1
Cage
Carbon Steel
Sleeve
400 SS
Spring Trim
Inconel & 316 SS
TANK CONNECTION TYPE AND SIZE
H31 & H32
26
H51 & H52
1"
11⁄2"
2"
1"
11⁄2"
2"
Connection Type
B20
C20
D20
B20
C20
D20
NPT
B30
C30
D30
B30
C30
D30
Socketweld
N50
P50
Q50
—
—
—
600 lb ANSI flanges
N60
P60
Q60
N60
P60
Q60
900 lb ANSI flanges
N70
P70
Q70
N70
P70
Q70
1500 lb ANSI flanges
2500 lb ANSI flanges
—
—
—
N80
P80
Q80
B40
C40
D40
B40
C40
D40
B44
C44
D44
B44
C44
D44
B50
C50
D50
B50
C50
D50
B54
C54
D54
B54
C54
D54
S50
T50
V50
—
—
—
S54
T54
V54
—
—
—
S60
T60
V60
S60
T60
V60
S64
T64
V64
S64
T64
V64
S70
T70
V70
S70
T70
V70
S74
T74
V74
S74
T74
V74
—
—
—
S80
T80
V80
—
—
—
S84
T84
V84
NPT
Socketweld
600 lb ANSI flanges
900 lb ANSI flanges
1500 lb ANSI flanges
2500 lb ANSI flanges
C/C
Location
Std
side/bottom
Std
14"
Std
14"
Std
14"
Std
side/side
14"
Std
14"
Std
14"
46-635 External Cage Displacer Actuated Liquid Level Switches
4.5
Model Numbers
4.5.2 High Pressure (continued)
ELECTRIC SWITCH MECHANISM AND ENCLOSURE
Type 4X/7/9 Aluminum Enclosure
Maximum Process Temperature ° F (° C)
One
Set Point
Series B Snap Switch
250
(121)
Series C Snap Switch
Switch Description Class I, Div. 1,
Groups C & D
Class I, Div. 1,
Group B
ATEX
Ex II 2G
EEx d IIC T6
SPDT
DPDT
BKQ
BNQ
BKS
BNS
BA9
BB9
450
(232)
SPDT
DPDT
CKQ
CNQ
CKS
CNS
CA9
CB9
Series D Snap Switch for
DC Current Application
250
(121)
SPDT
DPDT
DKQ
DNQ
DKS
DNS
DA9
DB9
Series F Hermetically Sealed
Snap Switch
500
(260)
SPDT
DPDT
FKQ
FNQ
FKS
FNS
FA9
FB9
500
(260)
SPDT
DPDT
HMC
HMF
500
(260)
SPDT
DPDT
HM3
HM7
HM4
HM8
HA9
HB9
500
(260)
SPDT
DPDT
8KQ
8NQ
8KS
8NS
8A9
8B9
Series HS 5 Amp Hermetically Sealed Snap Switch w/Wiring Leads
Series HS 5 Amp Hermetically Sealed Snap Switch w/Terminal Block
Series 8 Hermetically Sealed
Snap Switch
HEK HET N/A
PNEUMATIC SWITCH MECHANISM AND ENCLOSURE
Switch
Description
Maximum
Supply
Pressure
Series J
100 psig
(7 bar)
Bleed Type
60 psig
(4 bar)
Series k
Non-Bleed
100 psig
(7 bar)
Maximum
Process
Temperature
+400° F
(+204° C)
+400° F
(+204° C)
Bleed
Orifice
Diameter
NEMA 1
H31, H32
H51, H52
.063
(1.6 mm)
JKE
JKE
.094
(2.4 mm)
JLE
JLE
—
KOE
KPE
Consult factory for temperatures up to +750° F (+399° C).
Consult factory for TYPE 4X/7/9 cast iron housings.
Uncontrolled housing heater or drain available in TYPE 4X/7/9 enclosures.
Consult factory for switch codes.
Process temperature based on +100° F (+38° C) ambient
HS switch not available on models H51 or H52.
On condensing applications, temperature down-rated to +400° F (204° C)
process at +100° F (+38° C) ambient.
CSA approval does not apply to Series HE switches.
46-635 External Cage Displacer Actuated Liquid Level Switches
27
ASSURED QUALITY & SERVICE COST LESS
Service Policy
Return Material Procedure
Owners of MAGNETROL controls may request the
return of a control or any part of a control for complete
rebuilding or replacement. They will be rebuilt or
replaced promptly. Controls returned under our service
policy must be returned by Prepaid transportation.
MAGNETROL will repair or replace the control at no cost
to the purchaser (or owner) other than transportation if:
So that we may efficiently process any materials that are
returned, it is essential that a “Return Material
Authorization” (RMA) number be obtained from the
factory, prior to the material’s return. This is available
through a MAGNETROL local representative or by
contacting the factory. Please supply the following
information:
1. Returned within the warranty period; and
2. The factory inspection finds the cause of the claim
to be covered under the warranty.
If the trouble is the result of conditions beyond our control; or, is NOT covered by the warranty, there will be
charges for labor and the parts required to rebuild or
replace the equipment.
In some cases it may be expedient to ship replacement
parts; or, in extreme cases a complete new control, to
replace the original equipment before it is returned. If
this is desired, notify the factory of both the model and
serial numbers of the control to be replaced. In such
cases, credit for the materials returned will be determined
on the basis of the applicability of our warranty.
1.
2.
3.
4.
5.
Company Name
Description of Material
Serial Number
Reason for Return
Application
Any unit that was used in a process must be properly
cleaned in accordance with OSHA standards, before it is
returned to the factory.
A Material Safety Data Sheet (MSDS) must accompany
material that was used in any media.
All shipments returned to the factory must be by prepaid
transportation.
All replacements will be shipped F.O.B. factory.
No claims for misapplication, labor, direct or consequential damage will be allowed.
5300 Belmont Road • Downers Grove, Illinois 60515-4499 • 630-969-4000 • Fax 630-969-9489 • www.magnetrol.com
145 Jardin Drive, Units 1 & 2 • Concord, Ontario Canada L4K 1X7 • 905-738-9600 • Fax 905-738-1306
Heikensstraat 6 • B 9240 Zele, Belgium • 052 45.11.11 • Fax 052 45.09.93
Regent Business Ctr., Jubilee Rd. • Burgess Hill, Sussex RH15 9TL U.K. • 01444-871313 • Fax 01444-871317
Copyright © 2012 Magnetrol International, Incorporated. All rights reserved. Printed in the USA.
Magnetrol & Magnetrol logotype are registered trademarks of Magnetrol International, Incorporated.
Inconel® is a registered trademark of Special Metals West Virginia (Formerly Inco Alloys International).
CSA logotype is a registered trademark of Canadian Standards Association.
BULLETIN: 46-635.8
EFFECTIVE: March 2012
SUPERSEDES: January 2012