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API SPEC 6AV1

2nd Edition, February 2013

Complete Document

Specification for Validation of Wellhead Surface Safety Valves and Underwater Safety Valves for Offshore Service

Includes all amendments and changes through Change/Amendment , February 2013


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Superseded By: API STD 6AV1

EN
Additional Comments:
W/D S/S BY API STD 6AV1
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Description / Abstract:

This specification establishes design validation requirements for API 6A surface safety/underwater safety valves (SSV/USV) and associated valve bore sealing mechanism(s) for Class II and Class III. These classes are intended for use if substances such as sand can be expected to cause an SSV/USV valve failure. Class III adds requirements for the validation of the valve bonnet assembly inclusive of stem seals and may be selected by the user/purchaser. Validation to Class III also validates the same SSV/USV for Class II.

NOTE Previous editions of this document included reference to and requirements for verification to PR1, standard service (Class I).