SPX W Series - W71 MIX Proof Seat Lift Valve

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Parts Lists Waukesha Cherry-Burrell

Page 38 95-03087 10/2012

W71 Mix Proof Seat Lift Valve

21a, 21c

20a

14a

16a

17a

12a

10a

21b

14b

VA100-689

(20b)

(17b)

Main Page

Table of Contents3
Warranty5
Shipping Damage or Loss5
Warranty Claim5
Safety6
Care of Stainless Steel7
Stainless Steel Corrosion7
Elastomer Seal Replacement Following Passivation7
Introduction8
General Information8
Factory Inspection8
Models and Specifications8
Equipment Serial Number8
Operating Parameters9
Seal Compatibility9
Seat Options10
Pressure Ratings10
Installation11
Location11
Welding Instructions11
Air Supply11
Flow Direction11
Fittings12
Pipeline Support12
Installing Valve Manifolds12
Installing the Valve12
Quality of Control Air to Control Module13
External Flush - Liquid Vent Cavity13
Liquid Vent Cavity Only13
Liquid Vent Cavity and Lower Stem13
External Flush - Steam Vent Cavity14
Steam Vent Cavity, Upper and Lower Stem14
Installation14
Function15
Operation16
Solenoid Valve Port Connections16
Automatic Fail-Safe System17
Test Procedures17
Positive Fail-Safe Detection Test17
Corrective Action18
Valve Operating Conditions18
Valve Open18
Valve Closed18
Valve Closed, Upper Seat Lifted19
Valve Closed, Lower Seat Push (for W72RS/W72RSP Series Only)19
Valve Closed, Lower Seat Lift (for W71/W73 Series Valves Only)19
Maintenance20
Maintenance Intervals20
Inspection20
Lubrication20
Cleaning21
Cleaning-In-Place (CIP)21
Seat Cleaning Adjustment22
Lower Seat22
Upper Seat22
Removing Valve from System23
Disassembly of Valve Stems24
Adapter Bearings and O-Rings24
Inner O-Ring and Bearing Replacement24
Outer O-Ring Replacement25
Tri Ring Seat Replacement25
Radial Seat Ring Replacement (for W72RS Lower Stem)26
Lower Bearing Carrier O-Ring and Bearing Replacement27
Actuator O-Ring and Bearing Replacement28
Removal of O-Rings and Bearings, Non-Seat Lifting Actuators28
Removal of O-Rings and Bearings, Seat Lifting Actuators29
Installation of Piston and Spring Assembly Using Insertion Sleeve30
For W71/W73 4" Diameter Actuators30
Reassembly of Valve Stems31
Upper Stem Assembly31
Lower Stem Assembly31
Parts Lists32
W71 MIX Proof Non-Seat Lift Valve32
W71 MIX Proof Non-Seat Lift Valve with External Flush34
W71 MIX Proof Non-Seat Lift Valve with Steam Adapter36
W71 MIX Proof Seat Lift Valve38
W71 MIX Proof Seat Lift Valve with External Flush40
W71 MIX Proof Seat Lift Valve with Steam Adapter42
W72RS MIX Proof Non-Seat Lift Valve44
W72RS MIX Proof Non-Seat Lift Valve with External Flush46
W72RS MIX Proof Non-Seat Lift Valve with Steam Adapter48
W72RS MIX Proof Seat Lift Valve50
W72RS MIX Proof Seat Lift Valve with External Flush52
W72RS MIX Proof Seat Lift Valve with Steam Adapter54
W72RS MIX Proof Seat Lift Valve with Upper Balancer Option56
W72RS MIX Proof Seat Lift Tank Outlet Valve58
W72RS MIX Proof Seat Lift Tank Outlet Valve with External Flush60
W72RSP MIX Proof Seat Lift Valve62
W72RSP MIX Proof Seat Lift Valve with External Flush64
W73 Divert MIX Proof Seat Lift Valve66
W73 Divert MIX Proof Seat Lift Valve with External Flush68
W71 Valve Stems70
W72RS Valve Stems71
W72RSP Valve Stems72
W73 Valve Stems73
MIX Proof Valve Bodies for W71, W72RS, W72RSP, and W73 Valves74
W71/W73 Non-Seat Lift Actuator76
W71/W73 Seat Lift Actuator78
W72RS Non Seat Lift Actuator80
W72RS/W72RSP Seat Lift Actuator82
Installation Tools84
Troubleshooting85

SPX W Series - W71 MIX Proof Seat Lift Valve

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