Metso ANSI CLASS 125 Installation Maintenance And Operating Instructions Download

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Soft Seat Construction

1-1/2”–6” Series G110

ANSI Class 125, 150, 250, 300, 600

Cage Trim Globe and Angle Valves

PARTS

LIST

ITEM

DESCRIPTION

ITEM

DESCRIPTION

1
2
4

4B*

4G*

4J*

5*
6*
8*

12*

Body
Bonnet
Gasket, Bonnet
Gasket, Lower Cage
Gasket, BNT, Backup
Gasket, Lower Cage
Ring, Seat
Plug
Stem
Stud
Nut
Packing

12D

13
14

15*

19
22
23
24
25
32
33
34

Washer
Ring, Lantern
Follower, Packing
Flange, Packing
Pin
Felt Wiper
Stud
Nut
Nut, Clamp
Cage
Backup Ring
Omniseal

* Recommended Spare Parts

Figure 3 Parts Identification

Summary of Contents for ANSI CLASS 125

Page 1: ...neles 1 1 2 6 SERIES G110 ANSI CLASS 125 150 250 300 600 CAGE TRIM GLOBE AND ANGLE VALVES Installation Maintenance and Operating Instructions IMO 806 ISSUE 1 02 ...

Page 2: ...ge 3 1 4 Unpackaging 3 2 INSTALLATION 3 2 1 Final Check 4 3 MAINTENANCE 4 3 1 Disassembly 4 3 2 Removal from Pipeline 4 3 3 Actuator Removal 4 3 4 Valve Body Disassembly 4 3 5 Repair 5 3 6 Lapping of Seats 5 3 7 Replacement of Soft Seat 5 3 8 Plug Stem Disassembly 5 3 9 Packing Box 5 3 10 Bellows Sealed Valves 6 4 VALVE BODY ASSEMBLY 6 4 1 Plug Stem Assembly 6 4 2 Body Assembly 6 5 ACTUATOR MOUNTI...

Page 3: ...t being repaired The model number serial number size and rating of the valve are shown on the identifi cation tag located on the actuator 1 3 Storage 1 When a valve is to be stored for an extended period remove the line connection covers and spray a light coating of machine oil on the internals Replace the covers to prevent foreign matter from entering the valve body Exposed parts should also be s...

Page 4: ...nance such as diaphragm packing or trim replacement can be done without removing the valve from the line 1 Disconnect all instrument air and electrical lines from the actuator 2 Remove all inlet and outlet line flange studs and nuts and lift the valve out of the pipeline 3 Secure the valve and actuator assembly firmly on a work bench in an upright position in a manner to pre vent tipping or fallin...

Page 5: ...lding a nut with threading to match the plug stem threads to the center of a rod See Figure 2 8 Lap with short oscillating strokes The weight of the plug stem and lapping tool provides ample pressure for lapping do not bear down 9 Raise the plug occasionally lower it to another position and resume the oscillating strokes This ensures an even lap over the entire seating surfaces of plug and seat 10...

Page 6: ...ly inspect the portion of the plug shank that can be seen below the guide bushing If the pin can not be seen the bellows assembly must be held in a vice and the stem moved downward slightly until the pinned connection is visible CAUTION IN THE RELAXED CONDITION THE BELLOWS WILL BE AT MID TRAVEL THE STEM MAY ONLY BE MOVED DOWNWARD 1 2 OFTHEVALVETRAVEL LISTED INTABLE 2 4 If lapping of the plug and s...

Page 7: ... CONTINUE TO UNSCREW ROTAT ING THE VALVE PLUG WHILE IN CONTACT WITH THE SEAT RING CAN CAUSE DISTRUCTION OF THE SEAT AND GALLING 3 Move the plug off the seat by adding air supply to the R series actuator or decreasing air supply to the D series actuator Unscrew the valve plug stem an addi tional one half turn out of the actuator coupling to ensure positive seating 4 Tighten the connector cap screws...

Page 8: ...ION 1 2 4 4B 4G 4J 5 6 8 9 10 12 Body Bonnet Gasket Bonnet Gasket Lower Cage Gasket BNT Backup Gasket Lower Cage Ring Seat Plug Stem Stud Nut Packing 12D 13 14 15 19 22 23 24 25 32 33 34 Washer Ring Lantern Follower Packing Flange Packing Pin Felt Wiper Stud Nut Nut Clamp Cage Backup Ring Omniseal Recommended Spare Parts Figure 3 Parts Identification ...

Page 9: ...9 ...

Page 10: ...10 Figure 9 Bolt Tightening Sequence ...

Page 11: ...11 Notes ...

Page 12: ...044 USA Operational Facilities 44 Bowditch Drive P O Box 8044 Shrewsbury Massachusetts 01545 8044 USA Tel int 1 508 852 0200 Fax int 1 508 852 8172 North America 3100 Medlock Bridge Road Suite 250 Norcross GA 30071 USA Tel int 1 770 446 7818 Fax int 1 770 242 8386 Latin America Av Central 181 Cháracas Reunidas 12238 430 São Jose dos Campos Tel int 55 12 335 3500 Fax int 55 12 335 3535 Asia Pacific...

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