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 dis- connect 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. Copyright © 2010 Magnetrol International. 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. 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. 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 ........................................4 2.3 Piping....................................................................5 2.4 Mounting ..............................................................5 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 ..................................7 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 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. Figure 2 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. 4 46-635 External Cage Displacer Actuated Liquid Level Switches 2.3 Piping 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. Conduit Outlet 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. Pressure Vessel HL LL Shut-Off Valve Drain Valve Max. 12" DO NOT INSULATE SWITCH MECHANISM HOUSING. Figure 3 Typical Piping Arrangement On controls equipped with pneumatic switch assemblies, consult bulletin on mechanism furnished for air (or gas) piping instructions. Switch Series Letter 2.4 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 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. 46-635 External Cage Displacer Actuated Liquid Level Switches 5 2.5 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. 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. Screw Set Screw 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. Screw Figure 4 Housing Set Screws 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. Internal Circuit (Left) Switch Close on high level Line Load 4 1 5 2 6 3 Load Close on high level Common Common Close on low level Close on low level Load Load Figure 5 Terminal Connections DPDT Switch Mechanism Series B, C, D, F and 8 6 NOTE: Housing must be grounded via protective ground screw in base of housing. Internal Circuit (Right) Switch 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 your switch bulletin for this information. 6. Dress wiring to ensure no interference or contact with switch, or replacement of 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. 46-635 External Cage Displacer Actuated Liquid Level Switches 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. 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. 46-635 External Cage Displacer Actuated Liquid Level Switches 7 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 build-up 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 1" NPT drain Sealed Chamber w/NPT or Socket weld Side/Bottom Connections (B74, H13, H31, H51) HL B 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) 21.38 (543) 17.50 (444) 10.00 (254) 24.63 (626) 2" 1 6.25 (159) 15.60 (396) 4.63 (118) 23.88 (607) 19.21 (488) 10.00 (254) 27.50 (698) 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) 21.38 (543) 23.88 (607) 2.75 (70) 11.50 (292) 14.00 (356) 10.00 (254) 21.38 (543) 23.88 (607) 2.75 (70) 23.88 (607) 26.25 (667) 3.96 (101) 11.64 (296) 14.00 (356) 10.00 (254) 23.88 (607) 26.25 (667) 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" 0H52 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 Magnetrol’s 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 © 2010 Magnetrol International, Incorporated. All rights reserved. Printed in the USA. 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: 46-635.6 EFFECTIVE: August 2010 SUPERSEDES: August 2009