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Cameron GENERAL VALVE Twin Seal C821 User Manual

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ENGINEERED & PROCESS VALVES
GENERAL VALVE
®
Twin Seal
Double Block and Bleed Plug Valve
GENERAL VALVE
®
Installation, Operation and Maintenance Manual
®
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Cameron GENERAL VALVE Twin Seal C821 Specifications

General IconGeneral
BrandCameron
ModelGENERAL VALVE Twin Seal C821
CategoryControl Unit
LanguageEnglish

Summary

INSTALLATION AND GENERAL OPERATION

Installation Procedures

Guidance on valve installation, orientation, clearance, and flange fasteners.

Pressure Testing

Hydrostatic and air pressure test limits for Twin Seal valves.

Valve Operation Principles

Explanation of plug operation, sealing, and body cavity pressure management.

VALVE CONFIGURATIONS AND COMPONENTS

Gland, Bushing, and Bearing Types

Diagrams and arrangements for glands, bushings, and various bearing configurations.

SPECIFIC VALVE MODELS AND PROCEDURES

Series 8800 Components

Exploded view and typical arrangements for Series 8800 valves.

Model 375H Operator Details

Exploded view, disassembly, and assembly for Model 375H operator.

Model 500H/625H Operator Details

Exploded view, disassembly, and assembly for Models 500H/625H operators.

Model 376G/510G Operator Details

Exploded view, disassembly, and assembly for Models 376G/510G operators.

Model 625G/751G/755G Operator Details

Exploded view, disassembly, and assembly for Models 625G, 751G, 755G operators.

Model 1261G/1261-7G Operator Details

Exploded view, disassembly, and assembly for Models 1261G/1261-7G operators.

Model 1276G Operator Details

Exploded view, disassembly, and assembly for Model 1276G operator.

Model 1500G Operator Details

Exploded view, disassembly, and assembly for Model 1500G operator.

SPECIAL SYSTEMS AND MAINTENANCE

Differential Thermal Relief (DTR) System

Understanding the DTR system's function, background, and operation.

Valve Maintenance and Troubleshooting

Guidance on valve operation, maintenance, and troubleshooting.

Trademark Information

List of registered trademarks used in the document.

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