Flowserve Edward 602Y User Manual

Flowserve Edward 602Y

51 pages

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Edward Valves

Maintenance Manual for

Edward Pressure-Seal Valves

V-377 R4

Table of Contents

Default Chapter2
- Table of Contents2
Key to Illustrations3
Pressure-Seal Valve Figure Numbers3
Introduction3
- Type I4
- Type II5
- Type III6
- Type IV7
Valve Bonnet Types4
Description of Pressure-Seal4
Service Problems8
- Packing Chamber Leak8
- Packing Recommendations8
- Pressure-Seal Gasket Leaks10
- Pressure-Seal Leak10
- Seat and Disk Joint Leaks10
- Body Wall Leaks12
- Objectionable Vibration, Noise or Excessive Pressure Drop12
- Valve Lubrication12
Repair Procedures13
- Valve Body Repairs13
- Valve Component Repair15
  - Disk-Piston Assembly Repair15
  - Bonnet or Cover Repair16
- Welding Rod Recommendations16
- Field Repair Equipment17
Disassembly Procedures for Pressure-Seal Valves18
- Introduction18
- First Determine the Area of Failure18
Disassembly Procedures for Impactor Handles and Handwheels20
- Non-Ball Bearing Impactor20
- Handles and Handwheels20
- Ball Bearing Impactor Handwheels21
Procedures for Removing Limitorque Operators from Valve Yokes22
- Revolving Stem Valves or Non-Revolving Stem Valves with Torque-Only Units22
- Non-Revolving Stem Valves with Torque and Thrust Units23
Procedures for Setting Actuator Torque and Limit Switches24
- Limitorque Limit Switch and Torque Switch Setting Procedures24
Disassembly Procedures for Yoke Assemblies27
- Revolving Stem Valves with Type I Bonnets27
- Revolving Stem Valves with Type II Bonnets28
- Non-Revolving Stem Valves with Type II or III Bonnets28
- Valves with Type IV Bonnets28
Procedures for Removing Operator and Yoke Assembly as a Unit29
- Revolving Stem Valves with Type I Bonnets29
- Revolving Stem Valves29
- With Type II Bonnets29
- Non-Revolving Stem Valves with Type II, III or IV Bonnets30
Disassembly Procedures for Bonnet Types31
- Type I Pressure-Seal Bonnets - Stop and Stop-Check (Non-Return) Valves31
  - Piston-Lift Check Valves32
- Type II Pressure-Seal Bonnets - Stop and Stop-Check (Non-Return) Valves with Revolving Stems33
  - Stop and Stop-Check (Non-Return) Valves with Non-Revolving Stems34
- Type III Pressure-Seal Bonnets - Stop and Stop-Check (Non-Return) Valves36
  - Piston-Lift Check Valves37
  - Tilting Disk Check Valves38
- Type IV Pressure-Seal Bonnets - Stop and Stop-Check (Non-Return) Valves39
  - Piston-Lift Check Valves41
Assembly of Composite Pressure-Seal Gaskets42
Reassembly Procedures for Metal Pressure-Seal Valves43
- Introduction43
General Information48
Supplementary Repair Information50
Ordering Parts50

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Flowserve Edward 602Y Specifications

General

Brand	Flowserve
Model	Edward 602Y
Category	Control Unit
Language	English

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