Series 3 Liquid Level Switches
Installation and Operating Manual
Liquid Level Switches ASME B31.3 Construction
Read this Manual Before Installing This manual provides information on Series 3 Liquid Level Switches. 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
Notice of Trademark, Copyright, and Limitations Magnetrol & Magnetrol logotype are registered trademarks of Magnetrol International. Copyright © 2010 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. Repair parts are warranted free of defects in materials and workmanship for one year from the date of shipment. Materials, specifications, and contents are subject to change without prior written notice. 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. Magnetrol’s 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.
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. 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.
Series 3 Liquid Level Switches ASME B31.3 Construction
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..................................................................5 2.5 Wiring ......................................................................6 3.0 Switch Differential Adjustment 3.1 Low Level Controls ...................................................8 3.2 High Level Controls..................................................9 4.0 Preventive Maintenance 4.1 What To Do............................................................10 4.1.1 Keep Control Clean .....................................10 4.1.2 Inspect Switch Mechanisms, Terminals, and Connections Monthly ..................................10 4.1.3 Inspect Entire Unit Periodically....................11 4.1.4 Control Head Removal and Installation .......12 4.1.5 Functional Test of Unit ................................13 4.2 Troubleshooting ......................................................14 4.2.1 Check Switch Mechanism ............................14 4.2.2 Check Sensing Unit......................................15 4.3 What To Avoid........................................................16 5.0 Reference Information 5.1 Agency Approvals....................................................17 5.2 Specifications ..........................................................18 5.2.1 Dimensional Specifications — Sealed Cage Models ................................................18 5.2.2 Dimensional Specifications — Flanged Cage Models ................................................20 5.2.3 Actuating Levels, Steam Service Ratings and Specific Gravities ...................................23 5.3 Replacement Parts...................................................25 5.3.1 Sealed Cage Float Models B35, C35, G35, K35, L35, V35 and Z35 Parts Identification ......................................25 5.3.2 Sealed Cage Float Models B35, C35, G35 K35, L35, V35 and Z35 Part Numbers ......25 5.3.3 Sealed Cage Displacer Model B34 Parts Identification ......................................26 5.3.4 Sealed Cage Displacer Model B34 Part Numbers..............................................26 5.3.5 Flanged Cage Displacer Model C34 Parts Identification ......................................27 5.3.6 Flanged Cage Displacer Model C34 Part Numbers..............................................27 5.3.7 Flanged Cage Float Models B3F, G3F K3F and Z3F w/Material Code 1 Parts Identification ......................................28 5.3.8 Flanged Cage Float Models B3F, G3F, K3F and Z3F w/Material Code 1 Part Numbers ..28 5.3.9 Flanged Cage Float Models B3F, G3F, K3F and Z3F w/Material Code 2 & N Parts Identification ......................................29 5.3.10 Flanged Cage Float Models B3F, G3F, K3F and Z3F w/Material Code 2 & N Part Numbers..............................................29 5.4 Model Numbers 5.4.1 Sealed Cage Models ....................................30 5.4.2 Flanged Cage Models ..................................32
46-622 Series 3 Liquid Level Switches ASME B31.3 Construction
1.0
Introduction
Magnetrol’s Series 3 level switches are float operated units suitable for use on clean liquid applications for level alarm, pump control and safety shutdown functions. Units are designed, fabricated and certified to compliance with ASME B31.3 specifications.
Return spring Enclosing tube (non-magnetic) Attraction sleeve Magnet Swing-in position
1.1
Principle of Operation The design of Magnetrol float operated level switches is based upon the principle that a magnetic field will penetrate non-magnetic materials such as 316 stainless steel. In this case, the float moves a magnetic attraction sleeve within a non-magnetic enclosing tube and actuates a switch mechanism. The enclosing tube provides a pressure seal to the chamber and therefore to the process.
HL
Figure 1 Switch Tripped
1.2
Operating Cycle As the liquid level rises in the chamber (refer to Figure 1), the float moves the magnetic attraction sleeve up within the enclosing tube and into the field of the switch mechanism magnet. As a result, the magnet is drawn in tightly to the enclosing tube causing the switch to trip, “making” or “breaking” an electrical circuit. As the liquid level falls, the float drops and moves the attraction sleeve out of the magnetic field, releasing the switch at a predetermined “low level” (refer to Figure 2). The tension spring ensures the return of the switch in a snap action.
Swing-out position
LL
2.0
2.1
Installation
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 numbers and model numbers for future reference when ordering parts. Serial # _____________________________________ Model # _____________________________________
Figure 2 Switch Released
4
46-622 Series 3 Liquid Level Switches ASME B31.3 Construction
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.
Conduit outlet
Pressure vessel
2.3
Piping shows a typical piping installation of a Magnetrol Series 3 control to a pressure vessel. Level decals on control identify the actuation levels for the bottom switch mechanism of a unit with three switches at minimum specific gravity. Charts defining actuation levels for a unit with one switch at different specific gravities can be found on pages 23–24, Actuating Levels and Specific Gravities, Section 5.2.3.
Figure 3
Switch actuating level reference marks
Shutoff valve
Max. 12" Drain valve
Figure 3 Typical Piping Arrangement
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. DO NOT INSULATE SWITCH MECHANISM HOUSING. On controls equipped with pneumatic switch assemblies, consult bulletin on mechanism furnished for air (or gas) piping instructions. Refer to the Switch Instruction Reference Bulletins chart on page 7 to find bulletin numbers for pneumatic switches. 2.4 Mounting
Caution: If equipment is used in a manner not specified by the manufacturer, protection provided by the equipment may be impaired. 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 3° of vertical. A 3° slant is noticeable by eye, but installation should be checked with a spirit level on top and/or sides of float chamber.
46-622 Series 3 Liquid Level Switches ASME B31.3 Construction
5
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.
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.
2.5
Wiring
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 the equipment. NOTE: For supply connections in installations with ambient temperature up to +158° F (+70° C), use wire with a minimum rating of +167° F (+75° C) as required by the process conditions. Installations with ambient temperatures up to +176° F (+80° C) require wire with a minimum rating of +185° F (+85° C) as required by the process conditions. Use a minimum of 14 AWG wire for power and ground field wires. Caution: Level controls are shipped from the factory with the enclosing tube tightened and the middle set screw, on the housing base, locked to the enclosing tube. Failure to loosen the set screw prior to repositioning the conduit connection may cause the enclosing tube to loosen, resulting in the possible leakage of the process liquid or vapor.
Screw
Set Screw
Screw
Figure 4 NEMA 4X/7/9
Internal Circuit (Left) Switch
4 5 6 Load
1 2 3 Load
Internal Circuit (Right) Switch
Series 3 controls are shipped with the conduit entry of the switch housing placed 180° opposite to the tank configurations 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. 1. Loosen set screw(s) at base of switch housing. Refer to Figure 4.
Close on high level Common Close on low level Line
Close on high level Common Close on low level
2. Switch housing may be rotated 360° to allow correct positioning of conduit outlet.
Line
Load
Load
3. Tighten set screw(s) at base of switch housing.
Figure 5 Wiring diagram for DPDT Series B, C, D, F, R, 8 & 9 switches
4. Unscrew and remove switch housing cover. The threads have been lubricated to facilitate removal.
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. On non-hazardous applications, flexible conduit may be used between the control and the first junction box.
46-622 Series 3 Liquid Level Switches ASME B31.3 Construction
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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 in your switch bulletin for this information. See Switch Instruction Reference Bulletins chart below for switch instruction bulletin numbers. Switch Instruction Reference Bulletins
Switch Series Letter B, C, D F HS, H1 R, 8, 9 J K Description Bulletin No. 42-683 42-683 42-694 42-799 42-685 42-686
Dry Contact Switch High Temperature Hermetically Sealed Snap Switch Hermetically Sealed Snap Switch High Temperature Snap Switch Bleed Type Pneumatic Switch Non-Bleed Type Pneumatic Switch
NOTE: For models with a Series HS switch with high temperature lead wire, the leads are routed out through the conduit opening by the factory. A suitable conduit box should be provided for the connection of the leads to the control wiring.
6. Dress wiring to ensure no interference or contact with the switch housing cover. 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.
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 (gasketed) 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 gases into switch housings.
46-622 Series 3 Liquid Level Switches ASME B31.3 Construction
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3.0
Switch Differential Adjustment
The standard differential of Series 3 float models with one switch mechanism may be field-adjusted. Adjustment may be necessary if a wider differential needs to be set to overcome switch chatter caused by the process. The differential, or the amount of level travel between “switch-on” and “switch-off , may be adjusted by ” repositioning the lower jam nuts on the float stem. This adjustment is different for high level and low level controls. Refer to the appropriate section below for adjustment instructions.
Caution: Maximum differential adjustment is 1 inch (25 mm). Differential adjustment may be done only on models with a single switch mechanism.
3.1
Low Level Controls On low level controls the switch trips on the lower actuation point and resets on the higher actuation point. Widening the differential will allow the switch to trip on the original actuation point and reset at a later, or higher, point. The differential on low level controls may be adjusted by repositioning the lower jam nuts on the float stem. The standard factory setting is for a minimum amount of play (gap) between the top jam nuts and the attraction sleeve as shown in Figure 7 on page 9. 1. Determine what change in differential is necessary.
Switch housing cover Conduit connection Enclosing tube nut
Enclosing tube Refer to Figures 7 and 8 Housing base
Chamber
NOTE: To widen the differential one inch, the lower jam nuts must be set proportionately lower on the stem (i.e., in this example 1 inch).
Float
Figure 6
2. Make sure power source is turned off. 3. NEMA 4X/7/9—Unscrew and remove switch housing cover. 4. Disconnect power supply wires from switch mechanism. Pull wires out of conduit connection opening in housing base. Refer to Figure 6. 5a. Perform system shut-down procedures as required to relieve pressure from float chamber of control. Allow unit to cool. 5b. Close shut-off valves (if so equipped) to isolate control from tank. Drain off liquid in float chamber. Refer to Figure 3 on page 5. 5c. On installations without shut-off valves, relieve pressure from the tank. Drain liquid in tank to a level below the connections of the float chamber.
46-622 Series 3 Liquid Level Switches ASME B31.3 Construction
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NOTE: Level control, connections and pipe lines need not be removed from the tank.
6. Loosen enclosing tube nut with a 15⁄16" wrench. Unscrew Slight enclosing tube counterclockwise (switch and housing base play (gap) will rotate also) until it is free. Refer to Figure 6 on page 8. Must be Replace in same position allowed 7. Lift enclosing tube, switch, and base off float chamber. D (0.03" typical) Jam nuts and attraction sleeve are now accessible. Maximum gap 1.00 setting (applies to (25 mm) 8. Measure the distance “D” from the top edge of the upper models having a Position of single switch jam nuts to the top of the float stem. Refer to Figure 8. bottom Drop bottom mechanism with jam nuts jam nuts to Record this measurement. a single magnet (normal increase gap actuator only) factory setting (refer 9. Loosen and remove upper jam nuts, guide washer, and setting) to above attraction sleeve. instructions) 10. Loosen and adjust lower jam nuts to the desired position. Tighten lower jam nuts securely. Refer to Figure 8. Figure 8 Figure 7 11. Replace attraction sleeve on stem. 12. Replace upper jam nuts and guide washer on the stem in the position previously noted. Tighten upper jam nuts securely. Refer to Figure 8.
NOTE: Use a new enclosing tube gasket when reassembling enclosing tube to the chamber. Make certain that all gasket surfaces are thoroughly cleaned to allow proper gasket seating. Coat enclosing tube threads with “anti-seizing” compound.
13. Replace enclosing tube, switch, and base on chamber. Screw tube clockwise until tightened to 200–225 footpounds of torque. 14. Rotate switch housing to correct position and tighten set screw at base of switch housing. Refer to Figure 4 on page 6. 15. Bring supply wires through conduit outlet. Follow steps 5 through 10 in Wiring, Section 2.5 on pages 6 and 7. 16. 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. If the unit still fails to function properly, consult the factory.
3.2
High Level Controls On high level controls the switch trips on the higher actuation point and resets on the lower actuation point.
Caution: On high level controls, widening the differential requires raising the trip point a proportional amount. The reset point will remain the same.
46-622 Series 3 Liquid Level Switches ASME B31.3 Construction
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To widen the differential by raising the trip point, follow steps 1 through 16 in Low Level Controls, Section 3.1, pages 8–9).
Caution: After increasing gap setting, be certain to check for proper operation of switch mechanism by raising and lowering float assembly. Magnet must “snap” cleanly with additional float movement available after magnet snaps.
4.0
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. 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.
4.1
What To Do
4.1.1 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.
4.1.2 Inspect Switch Mechanisms, Terminals, and Connections Monthly
1. Dry contact 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 the Switch Instruction Reference Bulletins chart on page 7 to find appropriate bulletins 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 peeling away. The resulting “bare” wires can cause short circuits.
NOTE: Check wiring carefully and replace at the first sign of brittle insulation.
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46-622 Series 3 Liquid Level Switches ASME B31.3 Construction
4. Vibration may sometimes cause terminal screws to loosen. 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 loosen at connections causing leakage. Check lines and connections carefully and repair or replace, if necessary.
NOTE: Spare switches should be kept on hand at all times.
4.1.3 Inspect Entire Unit Periodically
Isolate control from vessel. Raise and lower liquid level to check for switch contact and reset.
Figure 9
46-622 Series 3 Liquid Level Switches ASME B31.3 Construction
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4.1.4 Control Head Removal and Installation
Inspection of the interior of the chamber is possible on flanged cage models. To do this, the control head must be removed to provide proper access to the chamber. This procedure will assure that the head assembly is removed and reinstalled properly. 1. Allow vessel to get to safe temperature and pressure before opening the pressure boundary. 2. Power down all wiring to the unit. 3. Remove all wiring and conduit from the unit. 4. Remove flange bolts. 5. Prepare an area where the head assembly can be placed such that it rests on the flange in its normal orientation (two 2×4 boards placed across an open drum work well). Refer to Figure 9 on page 11. 6. Carefully lift the head assembly by holding the sides of the flange. Maintain the head assembly as much as possible in the vertical position.
NOTE: Care must be taken not to place side force on the float which could bend the stem.
7. With the unit resting in its temporary fixture in an upright position, it can now be inspected or repaired.
Dim. A Top jam nuts Bottom jam nuts Attraction sleeve Enclosing tube (ref.) Head flange (ref.)
Caution: Do not place the unit on its side — this could result in damage to the stem.
0.03" Minimum gap setting
Stop tube Retaining screws Sleeve stop strap
8. Conduct a check for float stem straightness as follows: 8.1 Remove the stem assembly including attraction sleeve from the head assembly by removing the two screws holding the stop strap to the bottom of the flange. See Figure 10 for assembly schematic. 8.2 Check the stem straightness by aligning the stem against a straight edge. Stems that are bent in excess of 1 ⁄8 inch over any 6 inch length should not be used in this condition. Replace any bent stems. See Replacement Parts, Section 5.3 beginning on page 25. 8.3 Ensure that the components in the stem assembly are in good condition and surfaces are clear of potential obstructions. The stem assembly is reinstalled by securing the stop strap to the flange. Ensure that the attraction sleeve moves freely through the enclosing tube and that the stem assembly surfaces are smooth.
NOTE: Care must be taken during the straightness check to be certain that the attraction sleeve is not removed from the stem and jam nuts settings are not changed.
Float and stem assembly
Figure 10
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46-622 Series 3 Liquid Level Switches ASME B31.3 Construction
9. In the container that the unit is set on, raise the liquid level sufficiently to lift the float and trip the switch mechanism. Inspect inside of chamber for any obstructions or scale buildup. If excessive buildup is present, the interval between inspections should be shortened. Remove old gasket such that mating flange surfaces are completely clean. Position new gasket on chamber flange before replacing the head assembly.
NOTE: The float is restricted from moving laterally by the chamber, in the test configuration the float and stem can move further off center than possible under normal operation. Avoid excess movement in this lateral direction during the test. If switch trips, the unit may be reassembled.
10. Replace the assembly onto the float cage keeping it as vertical as possible. Carefully lower the assembly into the chamber making sure that the stem does not become bent during installation. Refer to Figure 9 on page 11. 11. Tighten flange bolts per torque values as indicated in table below.
Model B3F – 150# B3F – 300#, G3F – 150#, G3F – 300# B3F – 600# G3F – 600#, Z3F – 600# K3F – 600# Z3F – 900# Flange Bolting 100 – 120 ft-lbs 180 – 200 ft-lbs 300 – 320 ft-lbs 470 – 490 ft-lbs 675 – 710 ft-lbs 775 – 850 ft-lbs 200–225 ft-lbs Enclosing Tube
12. Attach wiring and connect power supply as described in Wiring, Section 2.5 on page 6.
4.1.5 Functional Test of Unit
This procedure will assure that the complete unit is functioning properly. This test should be conducted after switch and wiring inspections have been completed. 1. Adjust piping as required to bring control to a vertical position. Control must be mounted within 3° of vertical. Installation should be checked with an indicating level on top or sides of float chamber. 2. Check that the chamber is mounted within 3° of vertical after vessel installation is complete. 3. Raise level in the vessel sufficient to raise the float and trip the switch. Lower level in the vessel sufficient to lower float and reset the switch. Confirm switch trips and resets at expected levels (contact Magnetrol for specific information on trip points; have the serial number of the unit readily available).
46-622 Series 3 Liquid Level Switches ASME B31.3 Construction
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4.2
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: • Fuses may be blown • Reset button(s) may need resetting • Power switch may be open • Controlled equipment may be faulty • 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.
4.2.1 Check Switch Mechanism
1. 2. 3. 4.
5.
6.
7.
8.
Pull switch or otherwise disconnect power to the control. Remove switch housing cover. Disconnect power wiring from switch assembly. 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. 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. If switch magnet assembly swings freely and mechanism still fails to actuate, check installation of control to be certain it is within the specified 3° of vertical. Examine the switch closely as described in Inspect Switch Mechanisms, Terminals, and Connections Monthly, Section 4.1.2, step 1 on page 10. Check continuity of switch with ohmmeter. If switch does not function properly, replace it immediately. If switch mechanism is operating satisfactorily, proceed to check sensing unit.
NOTE: Spare switches should be kept on hand at all times.
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46-622 Series 3 Liquid Level Switches ASME B31.3 Construction
4.2.2 Check Sensing Unit
Conduit outlet
Shutoff valve (if used)
1. Reconnect power supply. Carefully actuate the switch mechanism manually (use a non-conductive tool on electrical switch mechanisms) to determine whether controlled equipment will operate.
Caution: With electrical power on, avoid contact with switch leads and connections at terminal block.
Switch actuating level reference mark
Optional liquid leg connection to vessel
2. If controlled equipment responds to manual switch actuation test, trouble may be located in the level sensing portion of the control, float(s), stem(s), and magnetic attraction sleeve(s). 3. Check to be certain liquid is entering float chamber. A valve may be closed or piping plugged.
Caution: Be certain to pull disconnect switch or otherwise ensure that electrical circuit(s) through control is deactivated. Close operating medium supply valve on controls equipped with pneumatic switch mechanisms.
Shutoff valve (if used)
Optional blow-down or drain valve
Figure 11
4. Disconnect wiring from supply side of switch mechanism(s) and remove electrical conduit or operating medium line connections to switch housing. 5. Perform system shutdown to relieve pressure from float chamber of control and allow unit to cool. 6. Close shutoff valves (if equipped) to isolate control from vessel. Drain off liquid in chamber if necessary 7. On installations without shutoff valves, relieve pressure from vessel and drain off liquid head above control mounting level.
NOTE: Control chamber, connections, and pipe lines need not be removed from vessel or boiler.
8. Remove switch housing assembly by loosening enclosing tube hex nut, which is located immediately below housing base. Refer to Figure 6 on page 8. 9. With switch housing assembly removed, inspect attraction sleeve(s) and inside of enclosing tube for excessive corrosion or solids buildup, which could restrict movement, preventing sleeve(s) from reaching field of switch magnet(s). 10. If differential has been changed in the field by repositioning the lower jam nuts on the float stem, check tightness and position of the jam nuts. 11. Check float to be certain it is buoyant in the liquid (float chamber or vessel must have adequate liquid level). If float is determined to be filled with liquid, or it is collapsed, it must be replaced immediately.
46-622 Series 3 Liquid Level Switches ASME B31.3 Construction
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Caution: Do not attempt to repair a float. See Replacement Parts, Section 5.3 beginning on page 25.
If all components in the control are in operating condition, the trouble is likely 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. 4.3 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.
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 very slowly.
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46-622 Series 3 Liquid Level Switches ASME B31.3 Construction
5.0
5.1
Reference Information
Agency Approvals
APPROVED MODEL
AGENCY
FM
All with an electric switch mechanism and a housing listed as Type 4X/7/9 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 Class I, Div 2, Groups B, C & D
Class I, Div 1, Groups C & D Class II, Div 1, Groups E, F & G
APPROVAL CLASSES
CSA
All with a Series HS, H1, F, 8 & 9 electric switch mechanism and a housing listed as CSA Type 4X All with an electric switch mechanism and a housing listed as Type 4X/7/9 All with an electric switch mechanism and a housing listed as Type 4X/7/9 Class I, Div 1, Group B All with an electric switch mechanism and an ATEX housing
ATEX / IEC Ex
Class I, Div 1, Groups B, C & D Class II, Div 1, Groups E, F & G ATEX II 2 G EEx d IIC T6 94/9/EC IEC Ex Ex d IIC T6 IP 66
Class I, Div 1, Groups C & D Class II, Div 1, Groups E, F & G
CE
Low Voltage Directives 2006/95/EC Per Harmonized Standard: EN 61010-1/1993 & Amendment No. 1
Installation Category II Pollution Degree 2
Controls with two “HS” or “H1” switches are not ATEX approved. 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 < 85° C < 100° C < 135° C < 200° C < 300° C < 450° C Temperature Classification T6 T5 T4 T3 T2 T1
These units are in conformity with IECEx KEM 05.0020X Classification Ex d IIC T6 Tambient -40° C to +70° C
46-622 Series 3 Liquid Level Switches ASME B31.3 Construction
17
5.2
Specifications
5.2.1 Dimensional Specifications — Sealed Cage Models
M
M L
L
NEMA 1: 8.50 (216) NEMA 4X/7/9: 10.12 (257) Group B: 10.12 (257) Plugged
K K
Plugged
K
K
(Ref) C
HL LL
(Ref) F
A
HL
LL
D
B
Figure 12 Threaded & Socket Weld Upper Side/Bottom
E
Figure 13 Flanged Upper Side/Bottom
L
M
Plugged
K
K
Conduit Connections K
Electrical Switches NEMA 4X/7/9: 1" NPT Group B: 1" NPT Pneumatic Switches 1 NEMA 1: ⁄4" NPT
(Ref) J
HL
LL G
Actuation levels
Outline Dimensions NEMA 4X/7/9 NEMA 4X/7/9, Group B L 3.87 (98) 5.00 (127) M 5.93 (151) 4.62 (117)
H
NEMA 1
Figure 14 Flanged Side/Side
Allow 8" (203 mm) over head clearance for cover removal. All housings rotatable 360°.
18
46-622 Series 3 Liquid Level Switches ASME B31.3 Construction
5.2
Specifications
5.2.1 Dimensional Specifications – Sealed Cage Models (cont.)
Inches (mm)
CHAMBERS WITH 1- INCH CONNECTIONS — 150 LB. AND 300 LB. ANSI CLASS
1" NPT Threaded & Socket Weld Model Code
B34 B35 C35 G35 L35 V35 Z35
A
8.76 (223) 8.92 (227) 8.92 (227) 9.80 (249) 9.80 (249) 8.92 (227) 9.80 (249)
B
3.63 (92) 4.15 (105) 4.15 (105) 4.69 (119) 4.69 (119) 4.15 (105) 4.69 (119)
C
13.84 (352) 15.12 (384) 15.12 (384) 16.17 (410) 16.17 (410) 15.12 (384) 16.17 (410)
A
K35 12.04 (306)
B
5.68 (144)
C
18.92 (481)
1" Flanged Upper Side/Bottom D F E Std. 14" Std. 14" 12.87 6.38 17.95 — — (327) (162) (459) 11.56 14.00 6.69 17.76 20.20 (294) (356) (170) (451) (513) 11.56 14.00 6.69 17.76 20.20 (294) (356) (170) (451) (513) 12.31 14.00 7.19 18.68 20.36 (313) (356) (183) (474) (517) 12.31 14.00 7.19 18.68 20.36 (313) (356) (183) (474) (517) 11.56 14.00 6.68 17.76 20.20 (294) (356) (170) (451) (513) 12.31 14.00 7.19 18.68 20.36 (313) (356) (183) (474) (517) D F E Std. 16" Std. 16" 14.56 16.00 8.19 21.45 22.89 (370) (406) (208) (545) (581)
1" Flanged Side/Side G Std. 13.62 (346) 12.21 (310) 12.21 (310) 12.96 (329) 12.96 (329) 12.21 (310) 12.96 (329) G Std. 15.21 (386) 16" 16.00 (406) 14"
— 14.00 (356) 14.00 (356) 14.00 (356) 14.00 (356) 14.00 (356) 14.00 (356)
H
6.38 (162) 6.69 (170) 6.69 (170) 7.19 (183) 7.19 (183) 6.68 (170) 7.19 (183)
J Std. 18.70 (478) 18.41 (468) 18.41 (468) 19.33 (490) 19.33 (490) 18.41 (468) 19.33 (490) J Std. 22.10 (561) 16" 22.89 (581) 14"
— 20.20 (513) 20.20 (513) 20.36 (517) 20.36 (517) 20.20 (513) 20.36 (517)
H
8.19 (208)
CHAMBERS WITH 11⁄2 - INCH CONNECTIONS — 150 LB. AND 300 LB. ANSI CLASS
11⁄2" NPT Threaded & Socket Weld Model Code*
B35 C35 G35 L35 V35 Z35
A
8.92 (227) 8.92 (227) 9.80 (249) 9.80 (249) 8.92 (227) 9.80 (249)
B
4.22 (107) 4.22 (107) 4.75 (121) 4.75 (121) 4.22 (107) 4.75 (121)
C
15.12 (384) 15.12 (384) 16.17 (410) 16.17 (410) 15.12 (384) 16.17 (410)
A
K35 12.04 (306)
B
5.75 (146)
C
18.92 (481)
11⁄2" Flanged Upper Side/Bottom D F E Std. 14" Std. 14" 12.56 14.00 7.69 18.76 20.20 (319) (356) (195) (477) (513) 12.56 14.00 7.69 18.76 20.20 (319) (356) (195) (477) (513) 13.31 14.00 8.19 19.68 20.36 (338) (356) (208) (500) (517) 13.31 14.00 8.19 19.68 20.36 (338) (356) (208) (500) (517) 12.56 14.00 7.69 18.76 20.20 (319) (356) (195) (477) (513) 13.31 14.00 8.19 19.68 20.36 (338) (356) (208) (500) (517) D F E Std. 16" Std. 16" 15.56 16.00 9.19 22.45 22.89 (395) (406) (233) (570) (581)
11⁄2" Flanged Side/Side G Std. 13.21 (336) 13.21 (336) 13.96 (355) 13.96 (355) 13.21 (336) 13.96 (355) G Std. 16.21 (412) 16" 16.00 (406) 14" 14.00 (356) 14.00 (356) 14.00 (356) 14.00 (356) 14.00 (356) 14.00 (356) H
7.69 (195) 7.69 (195) 8.19 (208) 8.19 (208) 7.69 (195) 8.19 (208)
J Std. 19.41 (493) 19.41 (493) 20.33 (516) 20.33 (516) 19.41 (493) 20.33 (516) J Std. 23.10 (587) 16" 22.89 (581) 14" 20.20 (513) 20.20 (513) 20.36 (517) 20.36 (517) 20.20 (513) 20.36 (517)
H
9.19 (233)
CHAMBERS WITH 2 - INCH CONNECTIONS — 150 LB. AND 300 LB. ANSI CLASS
2" NPT Threaded & Socket Weld Model Code*
B35 C35 G35 L35 V35 Z35
A
8.92 (227) 8.92 (227) 9.80 (249) 9.80 (249) 8.92 (227) 9.80 (249)
B
4.34 (110) 4.34 (110) 4.88 (124) 4.88 (124) 4.34 (110) 4.88 (124)
C
15.12 (384) 15.12 (384) 16.17 (410) 16.17 (410) 15.12 (384) 16.17 (410)
A
K35 12.04 (306)
B
5.88 (149)
C
18.92 (481)
2" Flanged Upper Side/Bottom D F E Std. 14" Std. 14" 12.56 14.00 7.69 18.76 20.20 (319) (356) (195) (477) (513) 12.56 14.00 7.69 18.76 20.20 (319) (356) (195) (477) (513) 13.31 14.00 8.19 19.68 20.36 (338) (356) (208) (500) (517) 13.31 14.00 8.19 19.68 20.36 (338) (356) (208) (500) (517) 12.56 14.00 7.69 18.76 20.20 (319) (356) (195) (477) (513) 13.31 14.00 8.19 19.68 20.36 (338) (356) (208) (500) (517) D F E Std. 16" Std. 16" 15.56 16.00 9.19 22.45 22.89 (395) (406) (233) (570) (581)
2" Flanged Side/Side G Std. 13.21 (336) 13.21 (336) 13.96 (355) 13.96 (355) 13.21 (336) 13.96 (355) G Std. 16.21 (412) 16" 16.00 (406) 14" 14.00 (356) 14.00 (356) 14.00 (356) 14.00 (356) 14.00 (356) 14.00 (356) H
7.69 (195) 7.69 (195) 8.19 (208) 8.19 (208) 7.69 (195) 8.19 (208)
J Std. 19.41 (493) 19.41 (493) 20.33 (516) 20.33 (516) 19.41 (493) 20.33 (516) J Std. 23.10 (587) 16" 22.89 (581) 14" 20.20 (513) 20.20 (513) 20.36 (517) 20.36 (517) 20.20 (513) 20.36 (517)
H
9.19 (233)
* Model B34 is not available for chambers with 11⁄2" and 2" connections
46-622 Series 3 Liquid Level Switches ASME B31.3 Construction
19
5.2
Specifications
M
5.2.2 Dimensional Specifications — Flanged Cage Models
M L
L
NEMA 1: 8.50 (216) NEMA 4X/7/9: 10.12 (257) Group B: 10.12 (257) Plugged
K K
Plugged
K
K
HL
HL LL
(Ref) C
(Ref) J
LL
A
G
B
H
Figure 15 Threaded & Socket Weld Upper Side/Bottom
Figure 16 Flanged Side/Side
L
M
Plugged
K
K
Conduit Connections K
Electrical Switches NEMA 4X/7/9: 1" NPT Group B: 1" NPT Pneumatic Switches 1 NEMA 1: ⁄4" NPT
HL LL
(Ref) F
Actuation levels
D
Outline Dimensions NEMA 4X/7/9 NEMA 4X/7/9, Group B NEMA 1
L 3.87 (98) 5.00 (127)
M 5.93 (151) 4.62 (117)
E
Figure 17 Flanged Upper Side/Bottom
Allow 8" (203 mm) over head clearance for cover removal. All housings rotatable 360°.
20
46-622 Series 3 Liquid Level Switches ASME B31.3 Construction
5.2
Specifications
5.2.2 Dimensional Specifications – Flanged Cage Models (cont.)
Inches (mm)
CHAMBERS WITH 1-INCH CONNECTIONS
Head Model Flg. Code Rating (lbs.)
300 C34 600 150 B3F 300 600 150 G3F 300 600 600 Z3F 900
1" NPT Threaded & Socket Weld A
15.63 (397) 15.63 (397) 9.12 (232) 9.12 (232) 9.12 (232) 10.12 (257) 10.12 (257) 10.12 (257) 10.11 (257) 10.11 (257)
1" Flanged Upper Side/Bottom D Std. 18.33 (466) 18.33 (466) 12.06 (306) 12.06 (306) 12.06 (306) 13.06 (332) 13.06 (332) 13.06 (332) 13.06 (332) 13.06 (332) D Std. 14.56 (370) 14.56 (370) 14.56 (370) 16" 16.00 (406) 16.00 (406) 16.00 (406) 14"
— — 14.00 (356) 14.00 (356) 14.00 (356) 14.00 (356) 14.00 (356) 14.00 (356) 14.00 (356) 14.00 (356)
1" Flanged Side/Side F G 14"
— — 21.51 (546) 22.19 (564) 23.32 (592) 22.19 (564) 23.00 (584) 24.44 (621) 24.08 (612) 24.08 (612)
B
3.13 (80) 3.13 (80) 3.63 (92) 3.63 (92) 3.63 (92) 4.69 (119) 4.69 (119) 4.69 (119) 4.68 (119) 4.68 (119)
C
22.59 (574) 22.72 (577) 16.64 (423) 17.32 (440) 18.45 (469) 18.30 (465) 19.12 (486) 20.56 (522) 20.19 (513) 21.13 (537)
E
5.45 (138) 5.45 (138) 6.13 (156) 6.13 (156) 6.13 (156) 7.19 (183) 7.19 (183) 7.19 (183) 7.19 (183) 7.19 (183)
Std. 25.29 (642) 25.42 (646) 19.58 (497) 20.26 (515) 21.39 (543) 21.25 (540) 22.06 (560) 23.50 (597) 23.14 (588) 23.14 (588) F Std. 23.33 (593) 24.20 (615) 25.88 (657)
Std. 18.97 (482) 18.97 (482) 12.71 (323) 12.71 (323) 12.71 (323) 13.71 (348) 13.71 (348) 13.71 (348) 13.71 (348) 13.71 (348) G Std. 15.21 (386) 15.21 (386) 15.21 (386)
14"
— — 14.00 (356) 14.00 (356) 14.00 (356) 14.00 (356) 14.00 (356) 14.00 (356) 14.00 (356) 14.00 (356)
H
5.45 (138) 5.45 (138) 6.13 (156) 6.13 (156) 6.13 (156) 7.19 (183) 7.19 (183) 7.19 (183) 7.18 (182) 7.18 (182)
J Std. 25.93 (659) 26.06 (662) 20.23 (514) 20.91 (531) 22.04 (560) 21.89 (556) 22.71 (577) 24.15 (613) 23.79 (604) 23.79 (604) J Std. 23.98 (609) 24.85 (631) 26.53 (674) 16" 24.77 (629) 25.64 (651) 27.32 (694) 14"
— — 21.51 (546) 22.19 (564) 23.32 (592) 22.17 (563) 23.00 (584) 24.43 (621) 24.08 (612) 24.08 (612)
A
150 K3F 300 600 11.62 (295) 11.62 (295) 11.62 (295)
B
5.69 (145) 5.69 (145) 5.69 (145)
C
20.38 (518) 21.25 (540) 22.93 (582)
E
8.19 (208) 8.19 (208) 8.19 (208)
16" 24.77 (629) 25.64 (651) 27.32 (694)
16" 16.00 (406) 16.00 (406) 16.00 (406)
H
8.19 (208) 8.19 (208) 8.19 (208)
CHAMBERS WITH 11⁄2-INCH CONNECTIONS
Head Model Flg. Code Rating (lbs.)
300 C34 600 150 B3F 300 600 150 G3F 300 600 600 Z3F 900
1" NPT Threaded & Socket Weld A
15.63 (397) 15.63 (397) 9.12 (232) 9.12 (232) 9.12 (232) 10.12 (257) 10.12 (257) 10.12 (257) 10.11 (257) 10.11 (257)
1" Flanged Upper Side/Bottom D Std. 18.33 (466) 18.33 (466) 13.06 (332) 13.06 (332) 13.06 (332) 14.06 (357) 14.06 (357) 14.06 (357) 14.06 (357) 14.06 (357) D 16" 16.00 (406) 16.00 (406) 16.00 (406) 14"
— — 14.00 (356) 14.00 (356) 14.00 (356) 14.00 (356) 14.00 (356) 14.00 (356) 14.00 (356) 14.00 (356)
1" Flanged Side/Side F G 14"
— — 21.51 (546) 22.19 (564) 23.32 (592) 22.19 (564) 23.00 (584) 24.44 (621) 24.08 (612) 24.08 (612)
B
3.19 (81) 3.19 (81) 3.69 (94) 3.69 (94) 3.69 (94) 4.75 (121) 4.75 (121) 4.75 (121) 4.75 (121) 4.75 (121)
C
22.59 (574) 22.72 (577) 16.64 (423) 17.32 (440) 18.45 (469) 18.30 (465) 19.12 (486) 20.56 (522) 20.19 (513) 21.13 (537)
E
6.19 (157) 6.19 (157) 7.13 (181) 7.13 (181) 7.13 (181) 8.19 (208) 8.19 (208) 8.19 (208) 8.18 (208) 8.18 (208)
Std. 25.29 (642) 25.42 (646) 20.58 (523) 21.26 (540) 22.39 (568) 22.25 (565) 23.06 (586) 24.50 (622) 24.14 (613) 24.14 (613) F Std. 24.33 (618) 25.50 (648) 26.88 (683)
Std. 18.97 (482) 18.97 (482) 13.71 (348) 13.71 (348) 13.71 (348) 14.71 (374) 14.71 (374) 14.71 (374) 14.71 (374) 14.71 (374) G Std. 16.21 (412) 16.21 (412) 16.21 (412)
14"
— — 14.00 (356) 14.00 (356) 14.00 (356) 14.00 (356) 14.00 (356) 14.00 (356) 14.00 (356) 14.00 (356)
H
6.19 (157) 6.19 (157) 7.13 (181) 7.13 (181) 7.13 (181) 8.19 (208) 8.19 (208) 8.19 (208) 8.18 (208) 8.18 (208)
J Std. 25.93 (659) 26.06 (662) 21.23 (539) 21.91 (556) 23.04 (585) 22.89 (581) 23.71 (602) 25.15 (639) 24.79 (630) 24.79 (630) J Std. 24.98 (634) 25.85 (657) 27.53 (699) 16" 24.77 (629) 25.64 (651) 27.32 (694) 14"
— — 21.51 (546) 22.19 (564) 23.32 (592) 22.19 (564) 23.00 (584) 24.44 (621) 24.08 (612) 24.08 (612)
Std. 11.62 5.75 20.38 15.56 150 (295) (146) (518) (395) G3F with 600# flanges available in 16" centerlines only. 11.62 5.75 21.25 15.56 K3F 300 (295) (146) (540) (395) 11.62 5.75 22.93 15.56 600 (295) (146) (582) (395)
A
B
C
E
9.19 (233) 9.19 (233) 9.19 (233)
16" 24.77 (629) 25.64 (651) 27.32 (694)
16" 16.00 (406) 16.00 (406) 16.00 (406)
H
9.19 (233) 9.19 (233) 9.19 (233)
46-622 Series 3 Liquid Level Switches ASME B31.3 Construction
21
5.2
Specifications
5.2.2 Dimensional Specifications – Flanged Cage Models (cont.)
Inches (mm)
CHAMBERS WITH 2-INCH CONNECTIONS
Head Model Flg. Code Rating (lbs.)
300 C34 600 150 B3F 300 600 150 G3F 300 600 600 Z3F 900
2" NPT Threaded & Socket Weld A
15.63 (397) 15.63 (397) 9.12 (232) 9.12 (232) 9.12 (232) 10.12 (257) 10.12 (257) 10.12 (257) 10.11 (257) 10.11 (257)
2" Flanged Upper Side/Bottom D Std. 18.33 (466) 18.33 (466) 13.06 (332) 13.06 (332) 13.06 (332) 14.06 (357) 14.06 (357) 14.06 (357) 14.06 (357) 14.06 (357) D Std. 15.56 (395) 15.56 (395) 15.56 (395) 16" 16.00 (406) 16.00 (406) 16.00 (406) 14"
— — 14.00 (356) 14.00 (356) 14.00 (356) 14.00 (356) 14.00 (356) 14.00 (356) 14.00 (356) 14.00 (356)
2" Flanged Side/Side F G 14"
— — 21.51 (546) 22.19 (564) 23.32 (592) 22.19 (564) 23.00 (584) 24.44 (621) 24.08 (612) 24.08 (612)
B
3.31 (84) 3.31 (84) 3.81 (97) 3.81 (97) 3.81 (97) 4.88 (124) 4.88 (124) 4.88 (124) 4.87 (124) 4.87 (124)
C
22.59 (574) 22.72 (577) 16.64 (423) 17.32 (440) 18.45 (469) 18.30 (465) 19.12 (486) 20.56 (522) 20.19 (513) 21.13 (537)
E
6.25 (159) 6.25 (159) 7.13 (181) 7.13 (181) 7.13 (181) 8.19 (208) 8.19 (208) 8.19 (208) 8.18 (208) 8.18 (208)
Std. 25.29 (642) 25.42 (646) 20.58 (523) 21.26 (540) 22.39 (568) 22.25 (565) 23.06 (586) 24.50 (622) 24.14 (613) 24.14 (613) F Std. 24.33 (618) 25.20 (648) 26.88 (683)
Std. 18.97 (482) 18.97 (482) 13.71 (348) 13.71 (348) 13.71 (348) 14.71 (374) 14.71 (374) 14.71 (374) 14.71 (374) 14.71 (374) G Std. 16.21 (412) 16.21 (412) 16.21 (412)
14"
— — 14.00 (356) 14.00 (356) 14.00 (356) 14.00 (356) 14.00 (356) 14.00 (356) 14.00 (356) 14.00 (356)
H
6.25 (159) 6.25 (159) 7.13 (181) 7.13 (181) 7.13 (181) 8.19 (208) 8.19 (208) 8.19 (208) 8.18 (208) 8.18 (208)
J Std. 25.93 (659) 26.06 (662) 21.23 (539) 21.91 (556) 23.04 (585) 22.89 (581) 23.71 (602) 25.15 (639) 24.79 (630) 24.79 (630) J Std. 24.98 (634) 25.85 (657) 27.53 (699) 16" 24.77 (629) 25.64 (651) 27.32 (694) 14"
— — 21.51 (546) 22.19 (564) 23.32 (592) 22.19 (564) 23.00 (584) 24.44 (621) 24.08 (612) 24.08 (612)
A
150 K3F 300 600 11.62 (295) 11.62 (295) 11.62 (295)
B
5.88 (149) 5.88 (149) 5.88 (149)
C
20.38 (518) 21.25 (540) 22.93 (582)
E
9.19 (233) 9.19 (233) 9.19 (233)
16" 24.77 (629) 25.64 (651) 27.32 (694)
16" 16.00 (406) 16.00 (406) 16.00 (406)
H
9.19 (233) 9.19 (233) 9.19 (233)
22
46-622 Series 3 Liquid Level Switches ASME B31.3 Construction
5.2
Specifications
5.2.3 Actuating Levels* and Specific Gravities
For float operated units, minimum specific gravities and actuating levels vary depending upon the material of construction code used with the unit.
NOTE: The minimum specific gravities and actuating levels shown are for single switch units with 1" process connections only. Minimum specific gravities and levels will change for multistage units and levels will change for units with 11⁄2 or 2" process connections. Consult factory for these changes.
*The level decals on the control identify the actuation levels for units with three switches at the corresponding minimum specific gravity of the three switch configuration.
Inches (mm)
SEALED CAGE FLOAT MODELS WITH 1-INCH PROCESS CONNECTIONS
Models w/Materials of Construction Code 1 Model Code Minimum Specific Gravity 0.69 0.57 0.55 0.40 0.41 0.71 0.66 Actuating Level @ Minimum Specific Gravity HL LL 3.06 (78) 3.15 (80) 3.25 (82) 3.56 (90) 3.31 (84) 3.06 (78) 2.94 (75) 3.62 (92) 3.86 (98) 3.83 (97) 4.06 (103) 3.98 (101) 3.81 (97) 3.63 (92) Models w/Materials of Construction Code 2 Minimum Specific Gravity 0.72 0.59 0.56 0.40 0.43 0.75 0.68 Actuating Level @ Minimum Specific Gravity HL LL 3.06 (78) 3.09 (78) 3.20 (81) 3.40 (86) 3.34 (85) 3.00 (76) 2.90 (74) 3.79 (96) 3.96 (101) 3.90 (99) 4.02 (102) 4.14 (105) 3.64 (92) 3.47 (88)
Levels ± 0.25" (6 mm)
B35 C35 G35 K35 L35 V35 Z35
FLANGED CAGE FLOAT MODELS WITH 1-INCH PROCESS CONNECTIONS
Model Code Head Flange (Lbs.) 150 B3F 300 600 150 G3F 300 600 150 K3F 300 600 600 Z3F 900 0.67 3.10 (79) 3.80 (97) 0.70 3.12 (79) 3.68 (93)
Levels ± 0.25" (6 mm)
Models w/Materials of Construction Code 1 Minimum Specific Gravity 0.78 0.66 0.66 0.41 0.55 0.70 0.33 0.40 0.60 0.67 Actuating Level @ Minimum Specific Gravity HL LL 3.00 (76) 2.17 (55) 2.06 (52) 3.58 (91) 3.52 (89) 4.00 (102) 3.08 (78) 3.05 (77) 3.30 (84) 3.10 (79) 3.87 (98) 2.97 (75) 3.12 (79) 4.26 (108) 4.10 (104) 4.81 (122) 3.64 (92) 3.56 (90) 3.85 (98) 3.80 (97)
Models w/Materials of Construction Code 2 or N Minimum Specific Gravity 0.83 0.66 0.71 0.43 0.56 0.76 0.33 0.40 0.62 0.70 Actuating Level @ Minimum Specific Gravity HL LL 2.97 (75) 2.10 (53) 2.19 (56) 3.61 (92) 3.47 (88) 4.13 (105) 2.97 (75) 2.96 (75) 3.44 (87) 3.12 (79) 4.05 (103) 3.10 (79) 2.94 (75) 4.42 (112) 4.18 (106) 4.75 (121) 3.67 (112) 3.57 (93) 3.88 (99) 3.68 (93)
46-622 Series 3 Liquid Level Switches ASME B31.3 Construction
23
5.2
Specifications
5.2.3 Actuating Levels*, Steam Service Ratings and Specific Gravities (cont.)
Inches (mm)
DISPLACER MODELS WITH 1-INCH PROCESS CONNECTIONS
Liquid Specific Gravity Model Code Process Temp. ° F (° C) 100 (38) B34 200 (93) 300 (149) 100 (38) 200 (93) C34 300 (149) 400 (205) 500 (260) 0.40 HL 1.30 (33) 1.24 (31) 1.18 (30) 4.56 (116) 4.19 (106) 3.81 (97) n/a n/a LL 4.77 (121) 4.70 (119) 4.62 (117) 8.44 (214) 8.06 (205) 7.63 (194) n/a n/a HL 2.17 (55) 2.13 (54) 2.09 (53) 5.75 (146) 5.50 (140) 5.19 (132) 4.81 (122) 4.44 (113) 0.50 LL 5.00 (127) 4.95 (126) 4.88 (124) 8.94 (227) 8.63 (219) 8.25 (210) 7.88 (200) 7.44 (189) HL 2.73 (69) 2.70 (69) 2.67 (68) 6.56 (167) 6.31 (160) 6.06 (154) 5.75 (146) 5.44 (138) 0.60 LL 5.16 (131) 5.11 (130) 5.06 (129) 9.25 (235) 9.00 (229) 8.69 (221) 8.38 (213) 8.00 (203) HL 3.13 (80) 3.11 (79) 3.09 (78) 7.13 (181) 6.94 (176) 6.69 (170) 6.44 (164) 6.19 (157) 0.70 LL 5.28 (134) 5.24 (133) 5.19 (132) 9.50 (241) 9.25 (235) 9.00 (229) 8.75 (222) 8.44 (214) HL 3.44 (87) 3.42 (87) 3.40 (86) 7.50 (191) 7.38 (187) 7.19 (183) 6.94 (176) 6.69 (170) 0.80 LL 5.37 (136) 5.34 (136) 5.30 (135) 9.69 (246) 9.50 (241) 9.25 (235) 9.00 (229) 8.75 (222) HL 3.67 (93) 3.66 (93) 3.64 (92) 7.88 (200) 7.69 (195) 7.50 (191) 7.31 (186) 7.13 (181) 0.90 LL 5.45 (138) 5.41 (137) 5.38 (137) 9.81 (249) 9.63 (245) 9.44 (240) 9.25 (235) 9.25 (229) HL 3.86 (98) 3.85 (98) 3.84 (98) 8.13 (207) 8.00 (203) 7.81 (198) 7.63 (194) 7.44 (189) 1.00 LL 5.51 (140) 5.48 (139) 5.45 (138) 9.94 (252) 9.75 (248) 9.56 (243) 9.38 (238) 9.19 (233)
Levels ± 0.25" (6 mm)
24
46-622 Series 3 Liquid Level Switches ASME B31.3 Construction
5.3
Replacement Parts
5.3.1 Sealed Cage Float Models B35, C35, G35, K35, L35, V35 and Z35 Parts Identification
1 4 5 6 8 7 2 3
Figure 18
9
Housing and Switch Mechanism
10
Item 1 2 3 4 5 6 7 8 9 10
Description Housing cover Housing base Switch mechanism Jam nuts (qty. 4) Washer Attraction sleeve Stop tube Enclosing tube E-tube gasket Chamber assembly
Figure 19 Sealed Cage Models B35, C35, G35, K35, L35
5.3.2 Sealed Cage Float Models B35, C35, G35, K35, L35, V35 and Z35 Part Numbers
B35, C35, G35, K35 & L35 Material Code 1 Housing kit (includes items 1 and 2) Switch mechanism Sleeve kit Enclosing tube E-tube gasket (includes items 4 through 7) Z32-6346-002 Z32-6346-202 Z32-6346-003 Z32-6346-203 12-1204-001 Available as complete sensing units only
* Specify model and serial number of control when ordering.
V35 & Z35 Material Code 1 Material Code 2
Material Code 2
Refer to bulletin on switch mechanism and housing base assembly furnished (see page 7) Refer to bulletin on switch mechanism and housing base assembly furnished (see page 7) 89-3426-001 89-3426-002 89-3426-005 89-3426-006
Chamber assembly*
An enclosing tube order must also include an E-tube gasket order.
46-622 Series 3 Liquid Level Switches ASME B31.3 Construction
25
5.3
Replacement Parts
5.3.3 Sealed Cage Displacer Models B34 Parts Identification
4 5 6 7
8 9
Item 1 2 3 4 5 6 7 8 9 10
Description Housing cover Housing base Switch mechanism Jam nuts (qty. 5) Washer Attraction sleeve Stop tube Enclosing tube E-tube gasket Chamber assembly
Figure 20 Sealed Cage Displacer Model B34
5.3.4 Sealed Cage Displacer Models B34 Part Numbers
All models w/Material Code 1 All models w/Material Code 2 Refer to bulletin on switch mechanism and housing base assembly furnished (see page 7) Refer to bulletin on switch mechanism and housing base assembly furnished (see page 7) 89-3426-003 Z32-6346-001 89-3426-004 Z32-6346-201
Housing kit (includes items 1 and 2) Switch mechanism Sleeve kit (includes items 4 through 6) Enclosing tube E-tube gasket Chamber assembly*
12-1204-001 Available as complete sensing units only
* Specify model and serial number of control when ordering.
An enclosing tube order must also include an E-tube gasket order.
26
46-622 Series 3 Liquid Level Switches ASME B31.3 Construction
5.3
Replacement Parts
5.3.5 Flanged Cage Displacer Model C34 Parts Identification
5 4 7 6
Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
Description Housing cover Housing base Switch mechanism Jam nuts (qty. 5) Enclosing tube E-tube gasket Attraction sleeve Washer (qty. 3) Screws (qty. 3) Spring & stem assembly Displacer assembly Retainer Washer Cotter pin (qty. 2) Head flange gasket Head flange Chamber assembly
16 15
10
89
14 11 12 17 13
Figure 21 Flanged Cage Displacer Model C34
5.3.6 Flanged Cage Displacer Model C34 Part Numbers
All models All models All models w/Material Code 1 w/Material Code 2 w/Material Code N Refer to bulletin on switch mechanism and housing base assembly furnished (see page 7) Refer to bulletin on switch mechanism and housing base assembly furnished (see page 7) 10-2106-004 10-2107-001 10-2107-001 Z32-6346-201 Z32-6346-201 Z32-6339-002 Z32-6346-204 Z32-6346-204 Z32-6339-001 12-1204-001 32-4205-002 32-4511-202 32-4203-004 32-4511-201 89-3258-001 89-3258-002 89-3258-003 89-3258-004 Z04-8639-001 Z04-8639-002 Consult factory Consult factory Consult factory
Housing kit (includes items 1 and 2) Switch mechanism Jam nuts Enclosing tube E-tube gasket Attraction sleeve Displacer and stem kits (includes items 8 through 15) Head flange Chamber assembly*
300# rating 600# rating 300# rating 600# rating 300# 600# 300# 600# rating rating rating rating
An enclosing tube order must also include an E-tube gasket order. A head flange order must also include a head flange gasket order. Consult factory for part number. 46-622 Series 3 Liquid Level Switches ASME B31.3 Construction
* Specify model and serial number of control when ordering.
27
5.3
Replacement Parts
5.3.7 Flanged Cage Float Models B3F, G3F, K3F and Z3F w/Material Code 1 Parts Identification
6 7 8 4 9 5
14
13 10 11 12 15
Figure 22 Flanged Cage Models B3F, G3F, K3F and Z3F
Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Description Housing cover Housing base Switch mechanism Enclosing tube E-tube gasket Jam nuts (qty. 4) Washer (qty. 2) Attraction sleeve Stop tube Stop strap Screws (qty. 2) Float & stem assembly Head flange gasket Head flange Chamber assembly
5.3.8 Flanged Cage Float Models B3F, G3F, K3F and Z3F w/Material Code 1 Part Numbers
150# Head Flange
Housing kit (includes items 1 and 2) Switch mechanism
300# Head Flange
600# Head Flange
900# Head Flange
Refer to bulletin on switch mechanism and housing base assembly furnished (see page 7) Refer to bulletin on switch mechanism and housing base assembly furnished (see page 7) Z32-6346-002 Z32-6339-004 Z32-6346-002 Z32-6346-003 Z32-6346-003 n/a n/a n/a n/a 12-1204-047 n/a n/a n/a 89-3258-024 n/a n/a n/a Z04-8637-013 Z32-6339-004 Z32-6339-005 12-1204-001 12-1204-012 12-1204-013 12-1204-027 n/a 89-3258-008 89-3258-009 89-3258-010 n/a Z04-8637-002 Z04-8637-005 Z04-8637-008 n/a 12-1204-002 12-1204-028 12-1204-029 12-1204-028 89-3258-011 89-3258-012 89-3258-013 89-3258-023 Z04-8637-003 Z04-8637-006 Z04-8637-009 Z04-8637-006 Consult factory
* Specify model and serial number of control when ordering.
Enclosing tube (Codes 1, 2) Enclosing tube (Code N) E-tube gasket Head Flange Gasket
B3F G3F K3F Z3F B3F G3F K3F Z3F B3F G3F K3F Z3F
12-1204-024 12-1204-025 12-1204-026 n/a 89-3258-005 89-3258-006 89-3258-007 n/a Z04-8637-001 Z04-8637-004 Z04-8637-007 n/a
Float & Stem Kits (includes items 6 through 13) Head Flange
Chamber assembly*
An enclosing tube order must also include an E-tube gasket order. A head flange order must also include a head flange gasket order. Consult factory for part number.
28
46-622 Series 3 Liquid Level Switches ASME B31.3 Construction
5.3
Replacement Parts
5.3.9 Flanged Cage Float Models B3F, G3F, K3F and Z3F w/Material Codes 2 & N Parts Identification
6 7 8 4 9 5
14
13 10 11 12 15
Item 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
Description Housing cover Housing base Switch mechanism Enclosing tube E-tube gasket Jam nuts (qty. 4) Washer (qty. 2) Attraction sleeve Stop tube Stop strap Screws (qty. 2) Float & stem assembly Head flange gasket Head flange Chamber assembly
Figure 23 Flanged Cage Models B3F, G3F, K3F and Z3F
5.3.10 Flanged Cage Float Models B3F, G3F, K3F and Z3F w/Material Codes 2 & N Part Numbers
150# Head Flange Material Code 2 & N
Housing kit (includes items 1 and 2) Switch mechanism
300# Head Flange Material Code 2 & N
600# Head Flange Material Code 2 & N
900# Head Flange Material Code 2
Enclosing tube (Codes 1, 2) Enclosing tube (Code N) E-tube gasket Head Flange Gasket
Refer to bulletin on switch mechanism and housing base assembly furnished (see page 7) Refer to bulletin on switch mechanism and housing base assembly furnished (see page 7) Z32-6346-202 Z32-6339-004 Z32-6346-202 Z32-6339-004 12-1204-001 12-1204-012 12-1204-013 12-1204-027 n/a 89-3258-017 89-3258-018 89-3258-019 n/a Z04-8637-002 Z04-8637-005 Z04-8637-008 n/a Z32-6346-203 Z32-6339-005 12-1204-002 12-1204-028 12-1204-029 12-1204-028 89-3258-020 89-3258-021 89-3258-022 89-3258-025 Z04-8637-003 Z04-8637-006 Z04-8637-009 Z04-8637-006
Consult factory * Specify model and serial number of control when ordering.
Z32-6346-203 n/a n/a n/a n/a 12-1204-047 n/a n/a n/a 89-3258-026 n/a n/a n/a Z04-8637-013
Float & Stem Kits (includes items 6 through 13) Head Flange
B3F G3F K3F Z3F B3F G3F K3F Z3F B3F G3F K3F Z3F
12-1204-024 12-1204-025 12-1204-026 n/a 89-3258-014 89-3258-015 89-3258-016 n/a Z04-8637-001 Z04-8637-004 Z04-8637-007 n/a
Chamber assembly* An enclosing tube order must also include an E-tube gasket order. A head flange order must also include a head flange gasket order. 46-622 Series 3 Liquid Level Switches ASME B31.3 Construction
29
5.4
Model Numbers
5.4.1 Sealed Cage Models
MODEL NUMBER CODE
Model Code Min. S.G. for Models with Material of Construction Code 1 FLOAT MODELS B35 C35 G35 K35 L35 V35 Z35 0.69 0.57 0.54 0.40 0.41 0.71 0.66 0.72 0.59 0.56 0.40 0.43 0.81 0.71 0.40 1000 500 750 600 300 2240 2193 100 1300 870 435 653 522 261 1913 1913 200 1225 716 400 600 480 240 1455 1425 300 1145 594 395 593 474 237 1210 1185 2 100 550 Pressure Rating psig @ ° F 750 800 900 1000 138 138 134 121 134 n/a n/a 38 68.9 34.5 51.7 41.4 20.7 154.4 151.2 38 89.6 288 60.0 30.0 45.0 36.0 18.0 131.9 131.9 93 84.4 bar @ ° C 399 49.6 27.6 41.4 33.1 16.5 100.3 98.3 149 78.9 427 41.0 27.2 40.9 32.7 16.3 83.4 81.7 482 538 9.5 9.5 9.2 8.3 9.2 n/a n/a
— — — — —
728 713 n/a
— — — — —
50.2 49.2 n/a
DISPLACER MODEL B34 0.40
MATERIALS OF CONSTRUCTION
1 2 Carbon steel chamber, 316L stainless steel float, 400 stainless steel sleeve, ASME B31.3 Construction Carbon steel chamber, 316L stainless steel float, 316 stainless steel sleeve, ASME B31.3 Construction
TANK CONNECTION TYPE AND SIZE
Type Threaded Socket Weld C/C Std. Std. 150 Flanged Upper Side/ Bottom Flanged Side/Side Std. 14" 16" Std. 14" 16" N30 N34 N36 S30 S34 S36 1" B20 B30 300 N40 N44 N46 S40 S44 S46 600 N50 N54 N56 S50 S54 S56 900 N60 N64 N66 S60 S64 S66 150 P30 P34 P36 T30 T34 T36 Size 11⁄2" C20 C30 Cage Mounting ANSI Flange Rating (lbs.) 300 P40 P44 P46 T40 T44 T46 600 P50 P54 P56 T50 T54 T56 900 P60 P64 P66 S60 S64 S66 150 Q30 Q34 Q36 V30 V34 V36 300 Q40 Q44 Q46 V40 V44 V46 600 Q50 Q54 Q56 V50 V54 V56 900 Q60 Q64 Q66 V60 V64 V66 2" D20 D30
PNEUMATIC SWITCH MECHANISM AND ENCLOSURE
Maximum Supply Pressure psig 100 Series J Bleed Type Series K Non-Bleed 60 60 100 40 bar 7 4 4 7 3 Maximum Process Temperature °F 400 400 700 400 400 °C 204 204 371 204 204 Bleed Orifice Diameter inches .063 .094 .055 — — mm 1.6 2.3 1.3 — — Models B35, C35, Models B34, V35, G35, K35 & L35 Z35 & All Models with Material of with Material of Constr. Code 1 Constr. Code 2 NEMA 1 JGH JHH JJH — KOH NEMA 1 JGF JHF JJF KOF —
Switch Description
Minimum SG ratings apply to single stage units. Consult factory for two and three stage units. Models are limited to maximum temperature rating of selected switch mechanism. Consult factory for 14" center-to-center dimensions on models K35 & B34. Models V35 and Z35 contain 17–7 ph stainless steel floats. Consult factory for Model B34 above +300° F (+149° C). Available with single switch only. Codes 11⁄2" and 2" NPT tank connections are not applicable to the B34 displacer model. Codes for a 16" center-to-center dimension are applicable to the K35 model only.
30
46-622 Series 3 Liquid Level Switches ASME B31.3 Construction
5.4
Model Numbers
5.4.1 Sealed Cage Models (cont.)
ELECTRIC SWITCH MECHANISM AND ENCLOSURE
Models B35, C35, K35 & L35 Models B34, V35, Z35 & all models Process with Material of Construction Code 1 with Material of Construction Code 2 Temperature Set TYPE 4X/7/9 Aluminum Enclosure Contacts Range Points ATEX ATEX Class I, Div 1 Class I, Div 1 Class I, Div 1 Class I, Div 1 Ex II 2 G EEx Ex II 2 G EEx °F (°C) Groups C&D Group B Groups C&D Group B d IIC T6 d IIC T6 1 BKA BKJ BCC BKB BKK BC9 SPDT 2 BLA BLJ BDC BLB BLK BD9 -40 to +250 3 BMA BMJ BEC BMB BMK BE9 (-40 to +121) 1 BNA BNJ BFC BNB BNK BF9 DPDT 2 BOA BOJ BGC BOB BOK BG9 1 CKA CKJ CCC CKB CKK CC9 SPDT 2 CLA CLJ CDC CLB CLK CD9 -40 to +450 3 CMA CMJ CEC CMB CMK CE9 (-40 to +232) 1 CNA CNJ CFC CNB CNK CF9 DPDT 2 COA COJ CGC COB COK CG9 1 DKB DKK DC9 DKB DKK DC9 SPDT 2 DLB DLK DD9 DLB DLK DD9 -40 to +250 3 DMB DMK DE9 DMB DMK DE9 (-40 to +121) 1 DNB DNK DF9 DNB DNK DF9 DPDT 2 DOB DOK DG9 DOB DOK DG9 1 FKA FKJ FCC FKB FKK FC9 SPDT 2 FLA FLJ FDC FLB FLK FD9 -50 to +750 (-46 to +399) 1 FNA FNJ FFC FNB FNK FF9 DPDT 2 FOA FOJ FGC FOB FOK FG9 1 HMJ HMK HMJ HMK SPDT 2 HMN HMP HMN HMP -50 to +550 N/A N/A (-46 to +288) 1 HMS HMT HMS HMT DPDT 2 HMY HMZ HMY HMZ -50 to +550 (-46 to +288) SPDT DPDT SPDT DPDT SPDT 1 1 1 2 1 2 1 2 1 2 3 1 2 1 2 3 1 2 HM3 HM7 HKJ HKN RKB RLB RNB ROB 8KA 8LA 8MA 8NA 8OA 9KA 9LA 9MA 9NA 9OA HM4 HM8 HKK N/A HKP HKN HKP HA9 HB9 HM3 HM7 HKJ HM4 HM8 HKK N/A HA9 HB9
Switch Description
Series B Snap Switch
Series C Snap Switch
Series D DC Current Snap Switch
Series F Hermetically Sealed Snap Switch Series HS Hermetically Sealed 5-amp Snap Switch with Wiring Leads Series HS Hermetically Sealed 5-amp Snap Switch with Terminal Block Series H1 Hermetically Sealed 1-amp Snap Switch with Wiring Leads Series R High Temperature Snap Switch Series 8 Hermetically Sealed Snap Switch Series 9 High Temperature Hermetically Sealed Snap Switch Switch Description Series R High Temperature Snap Switch Series 9 High Temperature Hermetically Sealed Snap Switch
-50 to +750 (-46 to +399)
RKK RC9 RKB RKK RC9 RLK RD9 RLB RLK RD9 RNK RF9 RNB RNK RF9 DPDT ROK RG9 ROB ROK RG9 8KJ 8CC 8KB 8KK 8C9 SPDT 8LJ 8DC 8LB 8LK 8D9 -50 to +750 8MJ 8EC 8MB 8MK 8E9 (-46 to +399) 8NJ 8FC 8NB 8NK 8F9 DPDT 8OJ 8GC 8OB 8OK 8G9 9KJ 9CC 9KB 9KK 9C9 SPDT 9LJ 9DC 9LB 9LK 9D9 -50 to +750 9MJ 9EC 9MB 9MK 9E9 (-46 to +399) 9NJ 9FC 9NB 9NK 9F9 DPDT 9OJ 9GC 9OB 9OK 9G9 Cast Iron Cast Iron CS/Aluminum CS/Aluminum Process Set Temp. Range Contacts Class I, Div 1 Class I, Div 1 Class I, Div 1 Class I, Div 1 NEMA 4X Points NEMA 4X Groups C&D Group B Groups C&D Group B °F (°C) 1 R1M RKM RKW R1M RKM RKW SPDT 2 R3M RLM RLW R3M RLM RLW -40 to +1000 (-40 to +538) 1 RDM RNM RNW RDM RNM RNW DPDT 2 REM ROM ROW REM ROM ROW 1 9AD 9KD 9KV 9AM 9KM 9KW SPDT 2 9BD 9LD 9LV 9BM 9LM 9LW -50 to +1000 3 9CD 9MD 9MV 9CM 9MM 9MW (-46 to +538) 1 9DD 9ND 9NV 9DM 9NM 9NW DPDT 2 9ED 9OD 9OV 9EM 9OM 9OW -40 to +750 (-40 to +399)
Process temperature based on +100° F (+38° C) ambient. On condensing applications, temperature down-rated to +400° F (+204° C) process at +100° F (+38° C) ambient. HS & H1 switches can be used with only materials of construction code 1 on models V35 & Z35
46-622 Series 3 Liquid Level Switches ASME B31.3 Construction
31
5.4
Model Numbers
5.4.2 Flanged Cage Models
MODEL NUMBER CODE
Model Code Head Flange ANSI Class Min. S.G. for Models with Material of Construction Code 1 0.78 0.66 0.66 0.41 0.55 0.70 0.33 0.40 0.60 0.67 0.67 2 or N 0.83 0.68 0.71 0.43 0.56 0.76 0.33 0.40 0.62 0.74 0.73 100 285 740 1000 285 740 1000 285 600 1480 1480 2193 100 740 1480 0.40 550 155 588 870 155 588 870 155 522 1147 1147 1718 300 655 1310 0.40 Pressure Rating psig @ ° F 750 95 505 800 95 505 800 95 480 1010 1010 1425 500 600 1310 0.44 800 80 410 790 80 410 790 80 474 825 825 1185 900 1000 20 50 105 20 50 105 20 50 n/a n/a n/a 38 19.6 51.0 68.9 19.6 51.0 68.9 19.6 41.4 102.0 102.0 151.2 100 51.0 102.0 0.40 288 10.7 39.6 60.0 10.7 45.0 60.0 10.7 36.0 79.1 79.1 118.5 300 45.2 90.7 0.40 bar @ ° C 399 6.5 34.8 55.6 6.5 41.1 55.6 6.5 33.1 69.6 69.6 98.3 500 41.1 82.7 0.44 427 5.5 28.3 54.5 5.5 28.3 54.5 5.5 32.7 56.9 56.9 81.7 482 538 1.4 3.4 7.2 1.4 3.4 7.2 1.4 3.4 n/a n/a n/a
FLOAT MODELS 150# B3F 300# 600# 150# G3F 300# 600# 150# K3F 300# 600# 600# Z3F 900# DISPLACER MODELS 300# C34 600# Minimum SG
— — — — — — — —
345 345 515
— — — — — — — —
92.7 92.7 35.5
n/a
n/a
n/a
MATERIALS OF CONSTRUCTION
1 2 N Carbon steel chamber, 316L stainless steel float, 400 stainless steel sleeve, ASME B31.3 Construction Carbon steel chamber, 316L stainless steel float, 316 stainless steel sleeve, ASME B31.3 Construction Carbon steel chamber, 316L stainless steel float, 316 stainless steel sleeve, NACE and ASME B31.3 Construction
NACE construction: float cage is thermally stress relieved after welding, then hardness tested to assure compliance.
TANK CONNECTION TYPE AND SIZE
Connection Type C/C 150 B20 B30 N30 N34 N36 S30 S34 S36 300 B60 B70 N40 N44 N46 S40 S44 S46 11" 600 B80 B90 N50 N54 N56 S50 S54 S56 900 B40 B50 N60 N64 N66 S60 S64 S66 150 C20 C30 P30 P34 P36 T30 T34 T36
Size 11⁄2" ANSI Head Flange Rating (lbs.) 300 C60 C70 P40 P44 P46 T40 T44 T46 600 C80 C90 P50 P54 P56 T50 T54 T56 900 C40 C50 P60 P64 P66 T60 T64 T66 150 D20 D30 Q30 Q34 Q36 V30 V34 V36 300 D60 D70 Q40 Q44 Q46 V40 V44 V46
2" 600 D80 D90 Q50 Q54 Q56 V50 V54 V56 900 D40 D50 Q60 Q64 Q66 V60 V64 V66
Threaded s/b Socket Weld s/b Flanged Upper Side/ Bottom Flanged Side/Side
Std. Std. Std. 14" 16" Std. 14" 16"
PNEUMATIC SWITCH MECHANISM AND ENCLOSURE
Maximum Supply Pressure psig 100 50 60 100 40 bar 7 4 4 7 3 Maximum Process Temperature °F 400 400 700 400 400 °C 204 204 371 204 204 Bleed Orifice Diameter inches .063 .094 .055 — — mm 1.6 2.3 1.3 — — All Models with Material of Construction Code 1 except B3F, C34, K34, G3F & Z3F with 600# or 900# ANSI rating NEMA 1 JGH JHH JJH — KOH Model C34 and All Models with Material of Construction Code 2 or N and B3F, G3F, K3F & Z3F with 600# or 900# ANSI rating NEMA 1 JGF JHF JJF KOF —
Switch Description
Series J Bleed Type Series K Non-Bleed
Minimum SG ratings apply to single stage units. Consult factory for two and three stage units. Models are limited to maximum temperature rating of selected switch mechanism. 600# and 900# flanged cage models must use switch codes listed under heading HS switches can be used with Materials of Construction Code 1 only.
Example: B3F-1B80-HSG. “Model C34 & All Models w/Materials of Construction Codes 2 or N and B3F, G3F, K3F & Z3F with 600# or 900# ANSI rating”.
Consult factory for 14" center-to-center dimensions on models K3F and C34. Construction Code N is not applicable to this unit due to 17–7 ph stainless steel float material. Consult factory for Model C34 up to +750° F (+399° C).
32
46-622 Series 3 Liquid Level Switches ASME B31.3 Construction
5.4
Model Numbers
5.4.2 Flanged Cage Models (cont.)
ELECTRIC SWITCH MECHANISM AND ENCLOSURE
All models C34 and all models All models C34 and all models with with Material of Construction Code 1 Material of Construction Codes 2 & N except B3F, G3F, K3F & Z3F and B3F, G3F, K3F & Z3F Process with 600# or 900# ANSI ratings with 600# or 900# ANSI ratings Temperature Set Contacts Range TYPE 4X/7/9 Aluminum Enclosure Points ATEX ATEX °F (°C) Class I, Div 1 Class I, Div 1 Class I, Div 1 Class I, Div 1 Ex II 2 G EEx Ex II 2 G EEx Groups C&D Group B Groups C&D Group B d IIC T6 d IIC T6 1 BKA BKJ BCC BKB BKK BC9 SPDT 2 BLA BLJ BDC BLB BLK BD9 -40 to +250 3 BMA BMJ BEC BMB BMK BE9 (-40 to +121) 1 BNA BNJ BFC BNB BNK BF9 DPDT 2 BOA BOJ BGC BOB BOK BG9 1 CKA CKJ CCC CKB CKK CC9 SPDT 2 CLA CLJ CDC CLB CLK CD9 -40 to +450 3 CMA CMJ CEC CMB CMK CE9 (-40 to +232) 1 CNA CNJ CFC CNB CNK CF9 DPDT 2 COA COJ CGC COB COK CG9 1 DKB DKK DC9 DKB DKK DC9 SPDT 2 DLB DLK DD9 DLB DLK DD9 -40 to +250 3 DMB DMK DE9 DMB DMK DE9 (-40 to +121) 1 DNB DNK DF9 DNB DNK DF9 DPDT 2 DOB DOK DG9 DOB DOK DG9 1 FKA FKJ FCC FKB FKK FC9 SPDT 2 FLA FLJ FDC FLB FLK FD9 -50 to +750 (-46 to +399) 1 FNA FNJ FFC FNB FNK FF9 DPDT 2 FOA FOJ FGC FOB FOK FG9 1 HMJ HMK HMJ HMK SPDT 2 HMN HMP HMN HMP -50 to +550 11 N/A N/A (-46 to +288) 1 HMS HMT HMS HMT DPDT 2 HMY HMZ HMY HMZ -50 to +550 11 (-46 to +288) -50 to +750 (-46 to +399) SPDT DPDT SPDT DPDT SPDT 1 1 1 2 1 2 1 2 1 2 3 1 2 1 2 3 1 2 HM3 HM7 HKJ HKN RKB RLB RNB ROB 8KA 8LA 8MA 8NA 8OA 9KA 9LA 9MA 9NA 9OA HM4 HM8 HKK N/A HKP HKN HKP HA9 HB9 HM3 HM7 HKJ HM4 HM8 HKK N/A HA9 HB9
Switch Description
Series B Snap Switch
Series C Snap Switch
Series D DC Current Snap Switch
Series F Hermetically Sealed Snap Switch Series HS Hermetically Sealed 5-amp Snap Switch with Wiring Leads Series HS Hermetically Sealed 5-amp Snap Switch with Terminal Block Series H1 Hermetically Sealed 1-amp Snap Switch with Wiring Leads Series R High Temperature Snap Switch Series 8 Hermetically Sealed Snap Switch Series 9 High Temperature Hermetically Sealed Snap Switch Switch Description Series R High Temperature Snap Switch Series 9 High Temperature Hermetically Sealed Snap Switch
RKK RC9 RKB RKK RC9 RLK RD9 RLB RLK RD9 RNK RF9 RNB RNK RF9 DPDT ROK RG9 ROB ROK RG9 8KJ 8CC 8KB 8KK 8C9 SPDT 8LJ 8DC 8LB 8LK 8D9 -50 to +750 8MJ 8EC 8MB 8MK 8E9 (-46 to +399) 8NJ 8FC 8NB 8NK 8F9 DPDT 8OJ 8GC 8OB 8OK 8G9 9KJ 9CC 9KB 9KK 9C9 SPDT 9LJ 9DC 9LB 9LK 9D9 -50 to +750 9MJ 9EC 9MB 9MK 9E9 (-46 to +399) 9NJ 9FC 9NB 9NK 9F9 DPDT 9OJ 9GC 9OB 9OK 9G9 Cast Iron Cast Iron CS/Aluminum CS/Aluminum Process Set Temp. Range Contacts Class I, Div 1 Class I, Div 1 Class I, Div 1 Class I, Div 1 NEMA 4X Points NEMA 4X °F (°C) Groups C&D Group B Groups C&D Group B 1 R1M RKM RKW R1M RKM RKW SPDT 2 R3M RLM RLW R3M RLM RLW -40 to +1000 (-40 to +538) 1 RDM RNM RNW RDM RNM RNW DPDT 2 REM ROM ROW REM ROM ROW 1 9AD 9KD 9KV 9AM 9KM 9KW SPDT 2 9BD 9LD 9LV 9BM 9LM 9LW -50 to +1000 3 9CD 9MD 9MV 9CM 9MM 9MW (-46 to +538) 1 9DD 9ND 9NV 9DM 9NM 9NW DPDT 2 9ED 9OD 9OV 9EM 9OM 9OW -40 to +750 (-40 to +399)
Codes for 150 lb. flanges are not applicable to the C34 displacer model. Codes for a 16" center-to-center dimension are applicable to the K3F model only. Process temperature based on +100° F (+38° C) ambient.
11 On condensing applications, temperature down-rated to +400° F (+204° C) process at
+100° F (+38° C) ambient. +100° F (+38° C) ambient
12 On condensing applications, temperature down-rated to +400° F (+204° C) process at
46-622 Series 3 Liquid Level Switches ASME B31.3 Construction
33
NOTES:
34
46-622 Series 3 Liquid Level Switches ASME B31.3 Construction
NOTES:
46-622 Series 3 Liquid Level Switches ASME B31.3 Construction
35
ASSURED QUALITY & SERVICE COST LESS
Service Policy Owners of Magnetrol 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: 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. No claims for misapplication, labor, direct or consequential damage will be allowed.
Return Material Procedure 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 Magnetrol’s local representative or by contacting the factory. Please supply the following information: 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.
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 © 2011 Magnetrol International, Incorporated. All rights reserved. Printed in the USA.
CSA logotype is a registered trademark of Canadian Standards Association
BULLETIN: 46-622.10 EFFECTIVE: August 2010 SUPERSEDES: June 2009
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