Flanged External Cage Float Actuated Liquid Level Switches DESCRIPTION External cage type level switches are completely selfcontained units designed for side mounting to a tank or vessel with threaded or flanged pipe connections. In hundreds of industrial applications throughout the petroleum refining, petrochemical production and power generation markets, these switches have thoroughly demonstrated their worth for years. FEATURES • Carbon steel float chamber. • Easy inspection of float chamber through removable head. • Stainless steel float and trim. • Service pressures up to 900 psig (62 bar). • Process temperatures up to +1000° F (+538° C). • Specific gravity ratings as low as 0.40. • Available switch styles including dry contact, hermetically sealed and pneumatic. • Operating level differentials field-adjustable. • Single or multiple switch mechanisms available. • Available switch enclosures include: NEMA 1 carbon steel for pneumatics APPLICATIONS TYPE 4X/7/9 Class I, Div. 1 Groups C & D aluminum • Accumulators • Flash tanks TYPE 4X/7/9, Class I, Div. 1, Group B, aluminum • Receivers • Knockout drums • 1", 11⁄2", or 2" tank connections available in either NPT, socket weld, flanged side/side or flanged side/bottom construction. • Flare pots • Storage tanks • Scrubbers • Separators • Optional high temperature insulation available. See bulletin 41-106. OPTIONS • Interface calibration • Special tank connections • Extreme temperature modifications • Special actuation levels • Customized installation dimensions • Special exterior surface preparation and finish TECHNOLOGY A permanent magnet is attached to a pivoted switch actuator and adjustment screw . As the float rises following the liquid level, it raises the attraction sleeve into the field of the magnet, which then snaps against the non-magnetic enclosing tube , actuating the switch . The enclosing tube provides a static pressure boundary between the switch mechanism and the process. On a falling level, an inconel spring retracts the magnet, deactivating the switch. 2 5 Pivot 6 4 Return Spring 1 3 Process Liquid Process Liquid Rising Level Falling Level SPECIFICATIONS SWITCH MECHANISMS AND ENCLOSURES SERIES B, C, D & R DRY CONTACT SWITCHES SERIES F, HS, H1, 8 & 9 HERMETICALLY SEALED SWITCHES • Dry contact for most applications • Ideal for use in salt and other corrosive atmospheres • Designs for AC and DC current applications • Positively pressurized capsules for entire mechanism and contacts • Process temperatures to +1000° F (+538° C) • Process temperatures to +1000° F (+538° C) SERIES J & K PNEUMATIC SWITCHES SWITCH ENCLOSURES • Suited for applications where electrical power is not available • TYPE 4X/7/9 aluminum enclosures • Designed to meet Class I, Div. 1, Groups C & D and Class I, Div. 1 Group B • Bleed and non-bleed designs • Process temperatures to +400° F (+204° C) • Optional housing heaters and drains available for some enclosures • Pneumatic switch mechanisms available with a NEMA 1 enclosure BASIC ELECTRICAL RATINGS Voltage 120 VAC 240 VAC 24 VDC 120 VDC 240 VDC 2 Switch Series and Non-Inductive Ampere Rating D F HS H1 R 8 B C 15.00 15.00 6.00 0.50 0.25 15.00 15.00 10.00 1.00 0.50 10.00 — 10.00 10.00 3.00 2.50 — 4.00 0.30 — 5.00 5.00 5.00 0.50 0.25 1.00 1.00 1.00 0.40 — 1.00 1.00 1.00 0.40 — 1.00 — 3.00 — — 9 — — 0.50 — — AGENCY APPROVALS AGENCY APPROVED MODEL AREA CLASSIFICATION FM All with an electric switch mechanism and a housing listed as TYPE 4X Non-Hazardous TYPE 4X 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 a housing listed as CSA TYPE 4X Non-Hazardous CSA TYPE 4X All with a Series HS, H1, F, 8 or 9 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 Directive 2006/95/EC Per Harmonized Standard: EN 61010-1/1993 & Amendment No. 1 Installation Category II Pollution Degree 2 CSA ATEX / IEC Ex CE Dual stage units with ‘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 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 3 DIMENSIONAL INCHES SPECIFICATIONS (mm) CHAMBERS WITH 1-INCH CONNECTIONS INCHES Min. 1" NPT Threaded 1" Flanged Sp. & Socket Weld Upper Side/Bottom Gr. A B C A B C MILLIMETERS 1" Flanged Side/Side HL A B C A B HL LL 76 342 325 149 417 341 149 433 74 97 D30 .65 9.19 3.27 12.75 12.06 6.12 15.63 12.71 6.12 16.25 2.50 3.33 233 83 323 306 155 397 322 155 412 63 84 66 84 B60 .68 C60 .55 C 10.19 4.33 14.63 13.06 7.18 17.50 13.71 7.18 18.19 9.81 3.80 14.25 12.68 6.68 17.12 13.33 6.68 17.75 LL 2.61 3.34 3.24 3.98 2.77 3.44 2.87 3.60 A C B C Actuating Levels 9.94 3.02 13.50 12.81 5.87 16.44 13.46 5.87 17.06 2.95 3.85 252 L30 .40 B 1" Flanged Side/Side C29 .76 J30 .48 A Actuating 1" NPT Threaded 1" Flanged Levels & Socket Weld Upper Side/Bottom 258 109 371 331 182 444 348 182 462 248 96 361 322 169 434 338 169 450 82 101 70 87 72 91 Levels ±0.25" (6 mm) CHAMBERS WITH 112⁄ -INCH CONNECTIONS INCHES Min. 11⁄2" NPT Threaded 11⁄2" Flanged Sp. & Socket Weld Upper Side/Bottom Gr. A B C A B C MILLIMETERS 11⁄2" Flanged Side/Side B C A B HL LL C29 .76 9.75 3.44 14.38 13.81 6.87 18.38 14.46 6.87 19.06 2.02 2.92 247 87 365 350 174 466 367 174 484 51 74 D30 .65 9.00 3.69 13.12 13.06 7.12 17.19 13.71 7.12 17.88 1.87 2.70 228 93 333 331 180 436 348 180 454 47 68 50 68 66 84 37 54 49 67 J30 .48 L30 .40 B60 .68 C60 .55 A B C Actuating 11⁄2" NPT Threaded 11⁄2" Flanged 11⁄2" Flanged Actuating Levels & Socket Weld Upper Side/Bottom Side/Side Levels 10.00 4.75 15.06 14.06 8.18 19.12 14.71 8.18 19.75 9.62 4.22 14.69 13.68 7.68 18.75 14.33 7.68 19.38 HL LL 1.97 2.70 2.60 3.34 1.46 2.13 1.93 2.66 A 254 244 120 107 382 373 357 347 207 195 C A B C 485 374 207 501 476 363 195 492 Levels ±0.25" (6 mm) CHAMBERS WITH 2-INCH CONNECTIONS INCHES Min. 2" NPT Threaded Sp. & Socket Weld Gr. A B C MILLIMETERS 2" Flanged Upper Side/Bottom B C A B C29 .76 10.00 3.56 14.44 13.81 6.87 18.25 14.46 6.87 18.94 2.02 2.97 254 90 366 350 D30 .65 96 336 331 B60 .68 A HL A C60 .55 C 2" Flanged Side/Side C L30 .40 B Actuating 2" NPT Threaded 2" Flanged Levels & Socket Weld Upper Side/Bottom B J30 .48 A 2" Flanged Side/Side LL A 8.75 3.81 13.25 13.06 7.12 17.56 13.71 7.12 18.25 1.50 2.33 222 9.74 4.87 15.19 14.06 8.18 19.50 14.71 8.18 20.12 9.38 4.34 14.81 13.68 7.68 19.12 14.33 7.68 19.75 1.60 2.33 2.23 2.97 1.52 2.19 1.99 2.72 C B C Actuating Levels HL LL 174 463 367 174 481 52 75 180 446 348 180 463 38 59 40 59 56 75 38 55 50 69 247 123 385 357 207 495 374 207 511 238 110 376 347 195 485 363 195 501 Levels ±0.25" (6 mm) 4 DIMENSIONAL INCHES SPECIFICATIONS (mm) 3.78 (96) 5.93 (151) 3.78 (96) 5.93 (151) 8.46 (215) 10.12 (257) 8.46 (215) 10.12 (257) D D D plugged D plugged HL LL HL LL C C A A B B Threaded and Socket Weld Side/Bottom Flanged 3.78 (96) 5.93 (151) Conduit Connections D Electrical Switches TYPE 4X/7/9: 1" NPT Group B: 1" NPT Pneumatic Switches 1 NEMA 1: ⁄4" NPT 8.46 (215) 10.12 (257) D D plugged NOTES: 1. Switch actuating levels (HL & LL) are given for minimum specific gravity conditions. Levels will be lower in the float chamber for higher specific gravities. HL LL 2. Standard process connections are a combination of 1" NPT and 1" socket weld coupling. C A 3. Allow overhead clearance of 10 inches (254 mm) for TYPE 4X/7/9 housing. B Side/Side Flanged 5 MODEL NUMBER Models available for quick shipment, usually within one week after factory receipt of a complete purchase order, through the Expedite Ship Plan (ESP) MODEL NUMBER CODE Model No. C29 D30 J30 L30 B60 C60 Minimum Specific Gravity for Models with Material of Construction Code 1 2 0.76 0.65 0.48 0.40 0.68 0.55 0.81 0.69 0.51 0.42 0.71 0.59 Pressure Rating psig @ ° F bar @ ° C 100 750 900 1000 38 399 482 538 500 250 400 300 900 500 403 201 322 242 725 403 388 194 310 233 496 388 383 191 167 167 182 182 34 17 28 21 62 34 28 14 22 17 50 28 27 13 21 16 34 27 26 13 12 12 13 13 MATERIALS OF CONSTRUCTION 1 2 Carbon steel chamber, 316 stainless steel float, 400 stainless steel sleeve Carbon steel chamber, 316 stainless steel float, 316 stainless steel sleeve TANK CONNECTION TYPE AND SIZE 1" Connection Size 11⁄2" 2" Threaded Side/Bottom B20 C20 D20 Socket Weld Side/Bottom B30 C30 D30 150 300 Cage Mounting Flange Rating (lbs.) 600 150 300 600 150 300 600 Flanged Upper Side/Bottom N30 N40 N50 P30 P40 P50 Q30 Q40 Q50 Flanged Side/Side S30 S40 S50 T30 T40 T50 V30 V40 V50 Connection Type Connection flanges are ASME B16.5 raised face. PNEUMATIC SWITCH MECHANISM AND ENCLOSURE Switch Description Series J Bleed Type Series K Non-Bleed Maximum Supply Pressure psig bar Maximum Process Temperature °F °C 100 60 100 40 +400 +400 +400 +400 7 4 7 3 +204 +204 +204 +204 Bleed Orifice Diameter inches mm .063 .094 — — 1.6 2.3 — — Models with Material of Construction Code 1 Code 2 NEMA 1 NEMA 1 JDG JEG KOE KOG JDE JEE KOE — Electric switch mechanism and enclosure codes on next page Models are limited to maximum temperature rating of selected switch mechanisms. For single stage models only. Consult factory for multiple stages. Model D30 recommended for Dowtherm applications. Float cage rated 600 psig @ +100° F (41 bar @ +38° C) and 340 psig @ +750° F (23 bar @ +399° C). Process temperature based on +100° F (+38° C) ambient. Consult factory for NEMA 4X//9 cast iron housing codes. On condensing applications, temperature down-rated to +400° F (+209° C) process at +100° F (+38° C) ambient. 6 ELECTRIC SWITCH MECHANISM AND ENCLOSURE Switch Description Series B Snap Switch BKA BLA BMA BNA BOA CKA CLA CMA CNA COA DKB DLB BKB BLB BMB BNB BOB CKB CLB CMB CNB COB DKB DLB DMB DNB DOB FKB FLB FNB FOB HMJ HMN HMS HMY BKK BLK BMK BNK BOK CKK CLK CMK CNK COK DKK DLK DMK DNK DOK FKK FLK FNK FOK HMK HMP HMT HMZ BC9 BD9 BE9 BF9 BG9 CC9 CD9 CE9 CF9 CG9 DC9 DD9 DE9 DF9 DG9 FC9 FD9 FF9 FG9 -40 to +250 (-40 to +121) -40 to +450 (-40 to +232) -40 to +250 (-40 to +121) -50 to +750 (-46 to +399) Series HS Hermetically Sealed 5-amp Snap Switch with Wiring Leads -50 to +550 (-46 to +288) Series HS Hermetically Sealed 5-amp Snap Switch with Terminal Block -50 to +550 (-46 to +288) Series H1 Hermetically Sealed 1-amp Snap Switch with Wiring Leads -50 to +750 (-46 to +399) Series R High Temperature Snap Switch -40 to +750 (-40 to +399) Series 8 Hermetically Sealed Snap Switch -50 to +750 (-46 to +399) Series 9 High Temperature Hermetically Sealed Snap Switch -50 to +750 (-46 to +399) 1 HM3 HM4 HA9 HM3 HM4 HA9 1 HM7 HM8 HB9 HM7 HM8 HB9 1 HKJ HKK HKJ HKK HKN HKP RKB RLB RNB ROB 8KB 8LB 8MB 8NB 8OB 9KB 9LB 9MB 9NB 9OB CS/Aluminum RKK RLK RNK ROK 8KK 8LK 8MK 8NK 8OK 9KK 9LK 9MK 9NK 9OK SPDT DPDT SPDT SPDT DPDT Series F Hermetically Sealed Snap Switch BCC BDC BEC BFC BGC CCC CDC CEC CFC CGC DC9 DD9 DNB DOB FKA FLA FNA FOA HMJ HMN HMS HMY BKJ BLJ BMJ BNJ BOJ CKJ CLJ CMJ CNJ COJ DKK DLK N/A DNK DOK FKJ FLJ FNJ FOJ HMK HMP HMT HMZ 1 2 3 1 2 1 2 3 1 2 1 2 3 1 2 1 2 1 2 1 2 1 2 SPDT DPDT Series D DC Current Snap Switch All models with Material of Construction Code 2 Process Temperature TYPE 4X/7/9 Aluminum Enclosure Set Contacts Range 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 DPDT Series C Snap Switch All models with Material of Construction Code 1 SPDT DPDT SPDT DPDT SPDT SPDT DPDT SPDT DPDT SPDT DPDT -40 to +1000 (-46 to +538) Series 9 High Temperature Hermetically Sealed Snap Switch -50 to +1000 (-46 to +538) SPDT DPDT SPDT DPDT N/A N/A 2 HKN HKP 1 2 1 2 1 2 3 1 2 1 2 3 1 2 RKB RLB RNB ROB 8KA 8LA 8MA 8NA 8OA 9KA 9LA 9MA 9NA 9OA CS/Aluminum RKK RLK RNK ROK 8KJ 8LJ 8MJ 8NJ 8OJ 9KJ 9LJ 9MJ 9NJ 9OJ NEMA 4X Series R High Temperature Snap Switch DF9 DG9 FCC FDC FFC FGC 1 2 1 2 1 2 3 1 2 R1M R3M RDM REM 9AD 9BD 9CD 9DD 9ED RC9 RD9 RF9 RG9 8CC 8DC 8EC 8FC 8GC 9CC 9DC 9EC 9FC 9GC Cast Iron Class I, Div 1 Class I, Div 1 Groups C&D Group B RKM RKW RLM RLW RNM RNW ROM ROW 9KD 9KV 9LD 9LV 9MD 9MV 9ND 9NV 9OD 9OV N/A N/A NEMA 4X R1M R3M RDM REM 9AM 9BM 9CM 9DM 9EM RC9 RD9 RF9 RG9 8C9 8D9 8E9 8F9 8G9 9C9 9D9 9E9 9F9 9G9 Cast Iron Class I, Div 1 Class I, Div 1 Groups C&D Group B RKM RKW RLM RLW RNM RNW ROM ROW 9KM 9KW 9LM 9LW 9MM 9MW 9NM 9NW 9OM 9OW 7 QUALITY The quality assurance system in place at Magnetrol guarantees the highest level of quality The Magnetrol quality assurance system is registered to ISO 9001 affirming its commitment to throughout the company. Magnetrol is committed to providing full customer satisfaction both in known international quality standards providing the strongest assurance of product/service quality products and quality service. quality available. Several Flanged External Cage Level Switches are available for quick shipment, usually within one week after factory receipt of a complete purchase order, through the Expedite Ship Plan (ESP). ESP service may not apply to orders of ten units or more. Contact your local representative for lead times on larger volume orders, as well as other products and options. ESP Expedite Ship Plan To take advantage of ESP, match the color coded model number codes in the selection charts (standard dimensions apply). 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. 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. Performance specifications are effective with date of issue and are subject to change without notice. Magnetrol & Magnetrol logotype are registered trademarks of Magnetrol International. CSA logotype is a registered trademark of Canadian Standards Association BULLETIN: 46-116.22 EFFECTIVE: August 2010 SUPERSEDES: July 2009