B40-2B60-SA9

B40 Sealed External Cage Industrial and ASME B31.1 Construction Installation and Operating Manual Liquid Level Switches Read this Manual Before Installing This manual provides information on the B40 Sealed External Cage 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. WARNING! Explosion hazard. Do not connect or disconnect equipment unless power has been switched off or the area is known to be non-hazardous. Low Voltage Directive For use in Category II installations. If equipment is used in a manner not specified by manufacturer, protection provided by equipment may be impaired. Notice of Copyright and Limitations Copyright © 2009 Magnetrol International All rights reserved. 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. B40 Sealed External Cage 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 Piping. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.3 Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.4 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 4.2 Agency Approvals . . . . . . . . . . . . . . . . . . . . . 10 4.3 Replacement Parts . . . . . . . . . . . . . . . . . . . . 11 4.4 Specifications . . . . . . . . . . . . . . . . . . . . . . . . 12 4.4.1 Dimensional Specifications . . . . . . . . 12 4.5 Model Numbers . . . . . . . . . . . . . . . . . . . . . . 16 4.5.1 Part Number Industrial Grade Construction . . . . . . . . . . . . . . 16 4.5.2 Part Number ASME B31.1 Construction . . . . . . . . . . . . . . 18 46-602 B40 Liquid Level Switches 1.0 Introduction Magnetrol's B40 level switches are specifically designed for extremely high pressure, high temperature service conditions found principally in power plants, petroleum and petrochemical refineries, and nuclear power installations. Mercury Switch 4 Pivot 5 6 Caution: If equipment is used in a manner not specified by manufacturer, protection provided by equipment may be impaired. 2 Tension Spring 3 Swing-In Position Float Pivots 1.1 Principle of Operation The design of Magnetrol float-operated level switches is based upon the principle that a magnetic field will “see through” non-magnetic materials such as 316 stainless steel. In this case, the float moves a magnetic attraction sleeve (1) within a non-magnetic enclosing tube (2) and actuates a switch mechanism (3). The enclosing tube provides a pressure seal to the chamber and, therefore, to the process. 1 Figure 1 Switch Tripped 1.2 Operating Cycle As the liquid level decreases 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 rises, the float moves the attraction sleeve out of the magnetic field, releasing the switch at a predetermined low level (see Figure 2). The tension spring ensures the return of the switch in a snap action. 4 5 6 Swing-Out Position Figure 2 Switch Released 2.0 2.1 Installation Unpacking Unpack the instrument carefully, inspecting for damage. Report any concealed damage to the carrier within 24 hours. Check the contents listed on the packing slip and purchase order. Check and record the serial number for future reference when ordering parts. 4 46-602 B40 Liquid Level Switches Vent line from chamber Pressure equalizing line to pressure vessel 1" schedule 80 beveled in-line weld nipples for attaching control to system (typical) Conduit connection to switch shousing Rising Level Falling Level Do not insulate chamber, fins, or switch housing Reference lines for switch actuating levels Inlet line to chamber Liquid equalizing line to pressure vessel must be vertical to within three degrees Figure 3 2.2 Piping Figure 3 shows a typical piping installation of a Model B40 in a pipeline to a pressure vessel. Reference lines, on float chamber, should be aligned to correspond with liquid level in the vessel at which switch control is desired (refer to dimensional drawing, if furnished). Use pipe of sufficient strength to support the unit. 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 the lower liquid line will drain towards the vessel and the upper vapor line will drain towards the control. Pipeline should be insulated, as shown, to minimize loss of liquid temperature and further control of the heat in the area of the switch housing. DO NOT insulate switch housing or float chamber. NOTE: Manufacturer recommends that when welding chrome-moly steel piping, the procedures used conform to AWS-D10.8-61. Caution: DO NOT INSULATE SWITCH MECHANISM HOUSING. 2.3 Mounting Caution: This instrument is intended for use in Installation Category II, Pollution Degree 2 locations. Before welding, adjust piping to bring control to a vertical position. B40 level controls require that the enclosing tube be mounted within three degrees of vertical in all directions. A three degree slant is noticeable by eye, but installation should be checked using a spirit level. 46-602 B40 Liquid Level Switches 5 2.4 Wiring 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. Most B40 level control switch housings are designed to allow 360° positioning of the conduit outlet by loosening the set screw(s) located under the housing base. High temperature wire must be used between control and first junction box located in a cooler area. 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. 1. To gain access to switch mechanism, remove switch housing cover. 2. Pull in supply wires (conductors), wrap them around enclosing tube under the baffle plate and connect to proper terminals. Be certain that excess wire does not interfere with tilt of switch, and that adequate clearance exists for replacement of switch housing cover. 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 process conditions. Installations with ambient temperatures up to +80° C require wire with a minimum rating of +85° C as required by process conditions. Use a minimum of 14 AWG wire for power and ground field wires. NOTE: See Figure 4 or bulletin on switch mechanism furnished for proper terminal connections. Switch bulletin numbers are listed in the chart below. Internal Circuit (Left) Switch 4 5 6 1 2 3 Load Internal Circuit (Right) Switch Switch Series Letter A Description Standard Mercury Switch Mercury Switch w/Beaded Leads Dry Contact Switch Vibration Resistant Mercury Switch Hermetically Sealed Snap Switch Hermetically Sealed Snap Switch High Temperature Snap Switch Bulletin No. Close on low level Common Load Close on low level Common 3, L C, D, S 2, E, L 42-683 Close on high level Line Load Close on high level Load Line F HS R 42-694 42-799 Figure 4 3. Connect power supply to control and test switch action by varying liquid level in float chamber. If switch mechanism fails to function, check vertical alignment of control and consult installation instructions in switch mechanism bulletin. 6 46-602 B40 Liquid Level Switches 4. Replace switch housing cover and place control into service. If control has been furnished with NEMA 7/9 explosion proof (cast) or NEMA 4 moisture proof (gasketed) switch housing, check the following: 1. After wiring connections have been completed, housings must be sealed at the conduit outlet with a suitable compound to prevent entrance of air. 2. 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. 3.0 Preventive Maintenance Periodic inspections are a necessary means to keep your Magnetrol 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 is observed, your control will provide reliable protection of your capital 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 a. Mercury switches may be visually inspected for short circuit damage. Check for small cracks in the glass tube containing the mercury. Such cracks can allow entrance of air into the tube causing the mercury to oxidize. This is noticeable as the mercury will appear dirty or dull, and will not break into clean, round pools. If these conditions exist, replace the mercury switch immediately. b. 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. Replace switch mechanism if wear or misalignment are apparent. 46-602 B40 Liquid Level Switches 7 c. DO NOT operate your control with defective or maladjusted switch mechanism (refer to bulletin on switch mechanisms furnished for service instructions). d. Magnetrol 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. Check wiring carefully and replace at the first sign of brittle insulation. e. Vibration may sometimes cause terminal screws to work loose. Check all terminal connections to make certain that screws are tightened. 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 46-602 B40 Liquid Level Switches 4.0 4.1 Reference Information 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. a. b. c. d. e. 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. If mechanism is equipped with a mercury switch, examine glass mercury tube closely as previously described in Section 3.0 Preventive Maintenance (page 7). If switch is damaged, replace it immediately. If microswitch, check continuity with ohmmeter. 8. If switch mechanism is operating satisfactorily, consult factory. 46-602 B40 Liquid Level Switches 9 4.2 FM Agency Approvals APPROVED MODEL AGENCY 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 CSA All with a Series 2, 3, F, L or HS 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 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 ATEX / IEC Ex Œ All with an electric switch mechanism and an ATEX housing Class I, Div 1, Groups B, C & D Class II, Div 1, Groups E, F & G ATEX II 2 G EEx d IIC T6 IEC Ex Ex d IIC T6 Class I, Div 1, Groups C & D Class II, Div 1, Groups E, F & G CE Œ IEC Installation Instructions: Low Voltage Directives 73/23/EEC & 93/68/EEC Per Harmonized Standard: EN 61010-1/1993 & Amendment No. 1 Installation Category II Pollution Degree 2 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 10 46-602 B40 Liquid Level Switches 4.3 Item Replacement Parts Description B40-1F30 B40-1B60 B40-PF30 B40-PB60 B40-3C30 B40-PC30 Model B40-1C50 B40-PC20 B40-5C20 B40-HF30 B40-HB60 B40-4C40 B40-PC40 B40-HC40 1 2 3 4 5 6 7 8 9 Housing Cover Housing Base Switch mechanism Jam nut(s) Attraction sleeve E-tube gasket Enclosing tube O-ring Float chamber assembly When ordering, please specify: A. Model and serial number of control. B. Name and number of replacement assembly. Refer to bulletin 42-683, 42-694 or 42-799 10-2106-004 (qty. 4) 32-4203-001 12-1204-001 32-6312-001 12-2201-215 32-6346-003 32-6357-002 32-6308-002 32-6357-003 N/A 12-2201-215 N/A N/A Consult Factory 04-4511-002 IMPORTANT: Connections: 1" or 11⁄2" Socket Weld 1" Schedule 80 Beveled Welding Nipples Figure 10 46-602 B40 Liquid Level Switches 11 4.4 Specifications 4.4.1 Dimensional Inches (mm) A Rotation clearance B Housing NEMA 4X Carbon steel A Outline Dimensions B C 3.25 (82) 5.25 (133) 3.87 (98) 6.82 (173) 8.88 (225) 8.46 (214) D 8.50 (215) 10.50 (266) 10.12 (257) E 3 ⁄4" NPT Single conduit 4.64 (117) 5.62 (142) 5.93 (150) C D E Plugged E 7.19 (182) NEMA 4X/7/9 Cast iron NEMA 4X/7/9 Die-cast aluminum 1" NPT Single conduit 1" NPT Dual conduit 8.50 (215) Rising level 1 1⁄2 " Socket weld C L 0.50 (13) 0.50 (13) 4.75 (121) 6.63 Falling level 9.50 (168) (241) O.D. 1 1⁄2 " Socket weld 19.62 (498) 7.56 (192) B40-3C30 Rotation clearance B A C D E Plugged E 1" Socket weld Rotation clearance A B 7.19 (182) 4.18 (106) Rising level 0.50 (13) 0.50 (13) C L C D E Plugged Falling level 4.15 (105) 5.56 (141) 8.30 (211) E 1" Socket weld 7.18 (182) 19.88 (504) 7.19 (182) 9.50 241 Rising level B40-5C20 11/2" Socket weld 5.06 (129) 0.50 (13) C L 0.50 (13) Falling level 6.63 10.12 (168) (257) O.D. 11/2" Socket weld 22.38 (568) 9.06 (230) B40-4C40 12 46-602 B40 Liquid Level Switches 4.4.1 Dimensional Inches (mm) (continued) A B Rotation Clearance C D E E Plugged 1" Weldolet 7.19 (132) 9.75 (248) 4.88 (124) 0.50 (13) 8.50 (216) 1" Socket weld Rising Level A B Rotation clearance 0.50 (13) 6.63 C (168) L E 15.62 (396) Falling Level C D E Plugged 7.07 (180) 5.37 (136) 1" Weldolet 19.63 (499) 7.19 (182) 8.00 (203) B40-1C50 C L 5.62 (143) Rising level 0.50 (13) 0.50 (13) Falling level 5.56 (141) O.D. A B 1" Schedule 80 beveled nipple C E E Plugged D Rotation clearance B40-1B60 6.68 ± .19 (169 ± 5) B40-2B60 7.06 ± .19 (180 ± 5) 1" Socket weld B40-1B60 17.88 ± .19 (454 ±5) B40-2B60 18.63 ± .19 (473 ± 5) B40-1B60 and B40-2B60 14.50 (368) 7.19 (182) Rising level 8.00 (203) NOTES: 0.50 (13) C L 4.50 (114) 0.50 (13) Falling level 5.56 (141) O.D. 1. Allow 8 in (203 mm) overhead clearance for cover removal. 2. Maximum ambient temperature at switch head should not exceed +140° F (+60° C). 1" Schedule 80 beveled nipple B40-1F30 6.68 ± .19 (169 ± 5) B40-2F30 7.06 ± .19 (180 ± 5) B40-1F30 17.88 ± .19 (454 ± 5) B40-2F30 18.63 ± .19 (473 ± 5) B40-1F30 and B40-2F30 46-602 B40 Liquid Level Switches 13 4.4.1 Dimensional Inches (mm) (continued) Housing A Rotation Clearance B A Outline Dimensions B C 3.25 (82) 5.25 (133) 3.87 (98) 6.82 (173) 8.88 (225) 8.46 (214) D 8.50 (215) 10.50 (266) 10.12 (257) E 3 ⁄4" NPT Single conduit NEMA 4X Carbon steel NEMA 4X/7/9 Cast iron NEMA 4X/7/9 Die-cast aluminum 4.64 (117) 5.62 (142) 5.93 (150) C D E 1" NPT Single conduit 1" NPT Dual conduit Plug 1 1⁄2" Socket Weld 8.50 (215) 7.19 (182) Rising Level 0.50 (13) 0.50 (13) 4.75 (121) 9.50 (241) 6.62 L (168) C Falling Level 11/2" Socket Weld 19.62 (498) 7.56 (192) B40-PC30 Rotation Clearance B A D E C Plug A Rotation Clearance B 9.50 (241) 11/2" Socket Weld 7.19 (132) Rising Level 0.50 (13) 0.50 (13) 6.63 (168) C L D E Plug 1" Socket Weld 5.06 (129) Falling Level C 10.12 (257) 7.62 (194) 7.19 (132) 11/2" Socket Weld 25.63 (651) 10.56 (268) 5.56 (141) 4.18 (106) C L Rising Level 0.50 (13) 0.50 (13) 4.15 (105) Falling Level B40-PC40 and B40-HC40 8.30 (210) 7.19 (182) 1" Socket Weld 19.88 (504) B40-PC20 14 46-602 B40 Liquid Level Switches 4.4.1 Dimensional Inches (mm) (continued) A B Rotation Clearance C D E Plug 8.00 (203) 1” Schedule 80 Weldolet 7.19 (182) 3.90 (99) C L 3.90 (99) Rising Level 0.50 (13) 0.50 (13) 5.56 (141) Falling Level 1” Schedule 80 Weldolet 8.18 (208) 20.88 (530) A B Rotation Clearance B40-HF30 and B40-PF30 C D E Plug 8.00 (203) 1” Sockolet 7.19 (182) 4.15 (105) C L 4.15 (105) Rising Level 0.50 (13) 0.50 (13) NOTES: 1. Allow 8 in (203 mm) overhead clearance for cover removal. 2. Maximum ambient temperature at switch head should not exceed +140° F (+60° C). 5.56 (141) Falling Level 1” Sockolet 8.18 (208) 20.88 (530) B40-PB60 and B40-HB60 46-602 B40 Liquid Level Switches 15 4.5 Model Numbers 4.5.1 Part Number Industrial Grade Construction BASIC MODEL B40 B40 Liquid Level Switch MATERIALS OF CONSTRUCTION/PRESSURE RATING (PSIG) Code 1F30 Chrome-Moly 321/347 SS 1B60 2F30 304 SS 2B60 3C30 Carbon Steel 4C40 316 SS 321/347 SS 5C20 Carbon Steel 1C50 Chrome-Moly 1" socket weld 1" weld coupling 2085 2533 1820 2010 1350 1872 1110 1845 165 956 316 SS 1" socket weld 0.65 11/2" socket weld 11/2" socket weld 1925 3700 1820 3543 1250 3169 1100 3129 215 3011 1" socket weld 1" welding nipple 1857 1566 1294 1240 n/a Chamber Material Float Material Tank Connection 1" welding nipple 2067 1777 1670 1668 651 Min. S.G. Temperature (°F) 100 500 750 800 1000 ELECTRIC SWITCH MECHANISM AND ENCLOSURE FOR ALL MODELS EXCEPT B40-5C20  Switch Description Series F Snap Switch Hermetically Sealed Series R High Temp Snap Switch Series S Snap Switch for AC Current Applications Series S Snap Switch for DC Current Applications Maximum Ž Process Temperature ° F (° C) 750 (399) 750 (399) 550 (288) One Set Point SPDT DPDT SPDT SPDT DPDT SPDT DPDT NEMA 4X/7/9 Aluminum, Polymer Coated FKB FNB RKB SKB SNB SLB SOB Aluminum, Cl I Div. 1 Grp B FKK FNK RKK SKK SNK SLK SOK ATEX Ex II 2 G EEx d IIC T6 FC9 FF9 RC9 SA9 SB9 SC9 SF9 400 (204) (continued on next page) 16 46-602 B40 Liquid Level Switches 4.5.1 Part Number Industrial Grade Construction (continued) Switch Description Maximum Ž Process Temperature ° F (° C) 1000 (538) 1000 (538) 1000 (538) One Set Point SPDT DPDT SPDT DPDT SPDT NEMA 4X Steel, Polymer Coated LAM LDM LBM LEM R5M NEMA 4X/7/9 Cast Iron, Polymer Coated LKM LNM LLM LOM RWM Cast Iron, Cl I Div. 1 Grp B LKW LNW LLW LOW RWW Series L Mercury Switch Series L Vibration Resistant Mercury Switch Series R High Temp Snap Switch ELECTRIC SWITCH MECHANISM AND ENCLOSURE FOR MODEL B40-5C20 ONLY  Switch Description Series C Snap Switch Series D Snap Switch for DC Current Applications Series F Snap Switch Hermetically Sealed Series HS 5 amp Snap Switch Hermetically Sealed w/Terminal Block Series HS 5 amp Snap Switch Hermetically Sealed w/Wiring Leads Series R Snap Switch Series 2 Vibration Resistant Mercury Switch w/Beaded Lead Series 3 Mercury Switch w/Beaded Leads Maximum Ž Process Temperature ° F (° C) 450 (232) 250 (121) One Set Point SPDT DPDT SPDT DPDT SPDT DPDT SPDT DPDT SPDT DPDT SPDT SPDT DPDT SPDT DPDT NEMA 4X/7/9 Aluminum, Polymer Coated CKB CNB DKB DNB FKB FNB HM3 HM7 HMJ HMS RKB 2KB 2NB 3KB 3NB Aluminum, Cl I Div. 1 Grp B CKK CNK DKK DNK FKK FNK HM4 HM8 HMK HMT RKK 2KK 2NK 3KK 3NB ATEX Ex II 2 G EEx d IIC T6 CC9 CF9 DC9 DF9 FC9 FF9 HA9 HB9 n/a n/a RC9 2C9 2F9 3C9 3F9 750 (399) 550  (288) 550  (288) 750 (399) 750 (399) 750 (399) Œ Float material based on availability. Both 321 SS and 347 SS are stabilized austenitic stainless steels.  Consult factory for NEMA 4X/7/9 cast iron housings. Ž Process temperature based on +100° F (+38° C) ambient.  On steam applications, temperature down-rated to +400° F (+204° C) process at +100° F (+38° C) ambient. 46-602 B40 Liquid Level Switches 17 4.5.2 Part Number ASME B31.1 Construction BASIC MODEL B40 B40 Liquid Level Switch MATERIALS OF CONSTRUCTION/PRESSURE RATING (PSIG) Chamber Material PF30 1” butt-weld HF30 Chrome-Moly PB60 1” socket weld HB60 PC30 PC40 316 SS HC40 PC20 Carbon Steel Carbon Steel 321/347 SSŒ n/a 0.65 11/2” socket weld 11/2” socket weld 1” socket weld 1444 3700 n/a 1335 1444 3543 n/a 1335 1251 3169 n/a 1157 n/a n/a 3129 n/a n/a n/a 3011 n/a n/a n/a 1510 661 1573 1573 1552 n/a n/a n/a n/a n/a 1510 661 Float Material Tank Connection Mininum S.G. Temperature° F 100 1573 500 1573 750 1552 800 n/a 1000 n/a Œ Float material based on availability. Both 321SS and 347SS are stabilized austenitic stainless steels.  Consult factory for NEMA 4X/7/9 cast iron housings. Ž Aluminum enclosure limited to +750° F (+399° C) in hazardous locations.  Process temperature based on +100° F (+38° C) ambient.  On steam applications, temperature down-rated to +400° F (+204° C) process at +100° F (+38° C) ambient. B 18 4 0 46-602 B40 Liquid Level Switches 4.5.2 Part Number ASME B31.1 Construction (continued) ELECTRIC SWITCH MECHANISM AND ENCLOSURE FOR MODEL B40-PXXX ONLY Switch Description Series C Snap Switch Series D Snap Switch for DC Current Applications Series F Snap Switch Hermetically Sealed Series HS 5 amp Snap Switch Hermetically Sealed w/Terminal Block Series HS 5 amp Snap Switch Hermetically Sealed w/Wiring Leads Series R snap switch Series S Snap Switch for AC Current Applications Series S Snap Switch for DC Current Applications Series 2 Vibration Resistant Mercury Switch w/Beaded Leads Series 3 Mercury Switch w/Beaded Leads Process Temperature Range  -40° to +450° F (-40° to +232° C) -40° to +250° F (-40° to +121° C) -50° to +750° F (-46° to +399° C) -50° to +550° F | (-46° to +288° C) -50° to +550° F | (-46° to +288° C) -40° to +750° F (-40° to +399° C) -40° to +550° F (-40° to +288° C) -40° to +250° F (-40° to +121° C) -20° to +750° F (-29° to +399° C) -20° to +750° F (-29° to +399° C) One Set Point SPDT DPDT SPDT DPDT SPDT DPDT SPDT DPDT SPDT DPDT SPDT SPDT DPDT SPDT DPDT SPDT DPDT SPDT DPDT Class I, Div. 1 Groups C & D CKB CNB DKB DNB FKB FNB HM3 HM7 HMJ HMS RKB SKB SNB SLB SOB 2KB 2NB 3KB 3NB NEMA 4X/7/9 Aluminum Enclosure y z Class I, Div. 1 Group B CKK CNK DKK DNK FKK FNK HM4 HM8 HMK HMT RKK SKK SNK SLK SOK 2KK 2NK 3KK 3NK ATEX CC9 CF9 DC9 DF9 FC9 FF9 HA9 HB9 — — RC9 SA9 SB9 SC9 SF9 2C9 2F9 3C9 3F9 B 4 0 P X X X ELECTRIC SWITCH MECHANISM AND ENCLOSURE FOR MODEL B40-HXXX ONLY Process Temperature Range  -20° to +1000° F (-29° to +538° C) -20° to +1000° F (-29° to +538° C) -40° to +1000° F (-40° to +538° C) NEMA 4X One Set Point SPDT DPDT SPDT DPDT SPDT Steel polymer coated LAM LDM LBM LEM R5M Cast iron, Class I, Div 1, Grps C&D LKM LNM LLM LOM RWM NEMA 4X/7/9 Cast iron, Class I, Div 1, Group B LKW LNW LLW LOW RWW Switch Description Series L mercury switch Series L vibration resistant mercury switch Series R high temperature snap switch B 4 0 H X X X 19 46-602 B40 Liquid Level Switches ASSURED QUALITY & SERVICE COST LESS Service Policy 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: 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 © 2009 Magnetrol International, Incorporated. All rights reserved. Printed in the USA. BULLETIN: 46-602.13 EFFECTIVE: September 2006 SUPERSEDES: February 2006