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26

46-622 Series 3 Liquid Level Switches ASME B31.3 Construction

5.3

Replacement Parts

5.3.3 Sealed Cage Displacer Models B34 Parts Identification

Item

Description

1

Housing cover

2

Housing base

3

Switch mechanism

4

Jam nuts (qty. 5)

5

Washer

6

Attraction sleeve

7

Stop tube

8

Enclosing tube

➀

9

E-tube gasket

10

Chamber assembly

4

5

6

7

8

9

Figure 20

Sealed Cage Displacer Model B34

5.3.4 Sealed Cage Displacer Models B34 Part Numbers

All models w/Material Code 1

All models w/Material Code 2

Housing kit

Refer to bulletin on switch mechanism and housing base

(includes items 1 and 2)

assembly furnished (see page 7)

Switch mechanism

Refer to bulletin on switch mechanism and housing base

assembly furnished (see page 7)

Sleeve kit

(includes items 4 through 6)

89-3426-003

89-3426-004

Enclosing tube

➀

Z32-6346-001

Z32-6346-201

E-tube gasket

12-1204-001

Chamber assembly*

Available as complete sensing units only

➀ 

An enclosing tube order must also include an E-tube gasket order.

* Specify model and serial number of control when ordering.

Summary of Contents for Magnetrol 3 Series

Page 1: ...Installation and Operating Manual Series 3 Liquid Level Switches ASME B31 3 Construction...

Page 2: ...in a manner not specified by the manufacturer protection provided by the equipment may be impaired Warranty All Magnetrol mechanical level and flow controls are war ranted free of defects in materials...

Page 3: ...age Models 20 5 2 3 Actuating Levels Steam Service Ratings and Specific Gravities 23 5 3 Replacement Parts 25 5 3 1 Sealed Cage Float Models B35 C35 G35 K35 L35 V35 and Z35 Parts Identification 25 5 3...

Page 4: ...1 2 Operating Cycle As the liquid level rises in the chamber refer to Figure 1 the float moves the magnetic attraction sleeve up within the enclosing tube and into the field of the switch mecha nism m...

Page 5: ...ended for installa tion 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 p...

Page 6: ...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...

Page 7: ...o the unit Caution In hazardous areas do not power the unit until the conduit is sealed and the enclosure cover is screwed down securely 7 Replace housing cover 8 If control has been furnished with an...

Page 8: ...differential on low level controls may be adjusted by repositioning the lower jam nuts on the float stem The standard factory setting is for a minimum amount of play gap between the top jam nuts and t...

Page 9: ...t enclosing tube threads with anti seizing compound 13 Replace enclosing tube switch and base on chamber Screw tube clockwise until tightened to 200 225 foot pounds of torque 14 Rotate switch housing...

Page 10: ...d 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 e...

Page 11: ...ructural integrity and for evidence of environmental or process leaks Repair or replace the unit if needed 3 Using a calibrated multimeter set to measure electrical resistance ohms at the field connec...

Page 12: ...d conduit from the unit 4 Remove flange bolts 5 Prepare an area where the head assembly can be placed such that it rests on the flange in its normal orientation two 2 4 boards placed across an open dr...

Page 13: ...mecha nism Inspect inside of chamber for any obstructions or scale buildup If excessive buildup is present the interval between inspections should be shortened Remove old gas ket such that mating flan...

Page 14: ...ct 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 care fully for any sign of binding Assembly sho...

Page 15: ...mber of control and allow unit to cool 6 Close shutoff valves if equipped to isolate control from vessel Drain off liquid in chamber if necessary 7 On installations without shutoff valves relieve pres...

Page 16: ...using 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...

Page 17: ...ic switch mechanism and a housing Class I Div 1 Groups B C D listed as TYPE 4X 7 9 Class I Div 1 Group B Class II Div 1 Groups E F G CSA All with a Series HS F 8 or 9 electric switch mechanism Class I...

Page 18: ...257 C B Ref K HL LL A K M Plugged L Figure 14 Flanged Side Side Figure 13 Flanged Upper Side Bottom Figure 12 Threaded Socket Weld Upper Side Bottom Conduit Connections K Actuation levels Allow 8 203...

Page 19: ...7 20 20 513 13 21 336 14 00 356 7 69 195 19 41 493 20 20 513 G35 9 80 249 4 75 121 16 17 410 13 31 338 14 00 356 8 19 208 19 68 500 20 36 517 13 96 355 14 00 356 8 19 208 20 33 516 20 36 517 L35 9 80...

Page 20: ...257 M Ref K Plugged K L K HL LL J G M Ref Plugged K H HL LL D E F M Ref K Plugged K L Figure 17 Flanged Upper Side Bottom Figure 16 Flanged Side Side Conduit Connections K Actuation levels Allow 8 203...

Page 21: ...7 27 32 694 15 21 386 16 00 406 8 19 208 26 53 674 27 32 694 G3F with 600 flanges available in 16 centerlines only 5 2 Specifications 5 2 2 Dimensional Specifications Flanged Cage Models cont Inches m...

Page 22: ...348 14 00 356 7 13 181 23 04 585 23 32 592 G3F 150 10 12 257 4 88 124 18 30 465 14 06 357 14 00 356 8 19 208 22 25 565 22 19 564 14 71 374 14 00 356 8 19 208 22 89 581 22 19 564 300 10 12 257 4 88 124...

Page 23: ...gravity HL LL HL LL B35 0 69 3 06 78 3 62 92 0 72 3 06 78 3 79 96 C35 0 57 3 15 80 3 86 98 0 59 3 09 78 3 96 101 G35 0 55 3 25 82 3 83 97 0 56 3 20 81 3 90 99 K35 0 40 3 56 90 4 06 103 0 40 3 40 86 4...

Page 24: ...39 300 149 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 C34 100 38 4 56 116 8 44 214 5 75 146 8 94 227 6 56 167 9 25 235 7 13...

Page 25: ...be order must also include an E tube gasket order Specify model and serial number of control when ordering Figure 18 Housing and Switch Mechanism 1 1 2 3 B35 C35 g35 K35 L35 v35 Z35 Material Code Mate...

Page 26: ...els B34 Part Numbers All models w Material Code 1 All models w Material Code 2 Housing kit Refer to bulletin on switch mechanism and housing base includes items 1 and 2 assembly furnished see page 7 S...

Page 27: ...chanism and housing base includes items 1 and 2 assembly furnished see page 7 Switch mechanism Refer to bulletin on switch mechanism and housing base assembly furnished see page 7 Jam nuts 10 2106 004...

Page 28: ...ead Flange 600 Head Flange 900 Head Flange Housing kit Refer to bulletin on switch mechanism and housing base includes items 1 and 2 assembly furnished see page 7 Switch mechanism Refer to bulletin on...

Page 29: ...2 N Material Code 2 N Material Code 2 Housing kit Refer to bulletin on switch mechanism and housing base includes items 1 and 2 assembly furnished see page 7 Switch mechanism Refer to bulletin on swit...

Page 30: ...l sleeve ASME B31 3 Construction 2 Carbon steel chamber 316L stainless steel float 316 stainless steel sleeve ASME B31 3 Construction Model Code Min S g for Models with Material of Construction Code P...

Page 31: ...2 HMY HMZ HMY HMZ Series HS Hermetically Sealed 5 amp Snap Switch with Terminal Block 50 to 550 46 to 288 SPDT 1 HM3 HM4 HA9 HM3 HM4 HA9 DPDT 1 HM7 HM8 HB9 HM7 HM8 HB9 Series R High Temperature Snap...

Page 32: ...204 063 1 6 JGH JGF 50 4 400 204 094 2 3 JHH JHF 60 4 700 371 055 1 3 JJH JJF Series K Non Bleed 100 7 400 204 KOF 40 3 400 204 KOH Model Code Head Flange ANSI Class Min S g for Models with Material o...

Page 33: ...ds 50 to 550 46 to 288 11 SPDT 1 HMJ HMK N A HMJ HMK N A 2 HMN HMP HMN HMP DPDT 1 HMS HMT HMS HMT 2 HMY HMZ HMY HMZ Series HS Hermetically Sealed 5 amp Snap Switch with Terminal Block 50 to 550 46 to...

Page 34: ...34 46 622 Series 3 Liquid Level Switches ASME B31 3 Construction NOTES...

Page 35: ...46 622 Series 3 Liquid Level Switches ASME B31 3 Construction 35 NOTES...

Page 36: ...such cases cred it for the materials returned will be determined on the basis of the applicability of our warranty No claims for misapplication labor direct or consequen tial damage will be allowed Re...

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