Hydrostatic testing of control valves

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INTRODUCTION OF BOOK:

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This standard establishes requirements and definitions for standard hydrostatic shell testing of control valves by the valve manufacturer to prove the structural integrity and leak tightness of the valves’ pressure retaining parts, including any closure parts such as the valve body to bonnet joint, but excluding packings,bellows or other moving seals and packing leakoff connections. Bellows or similar moving stem seals maybe pressure tested after assembly at a pressure to be agreed upon by the valve manufacturer and the purchaser. The requirements of this standard do not cover pneumatic and hydraulic actuators and regulators.

TABLES OF CONTENTS:

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1. Scope
2. Definitions
3. Test fixture and instrumentation
4. Test requirements
5. Test procedures
6. Acceptance standards
7. Test pressures

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