It is the purpose of this document to establish the requirements for testing and evaluating the pressure-containing performance of API 6A and 6D valves when exposed to fire. The performance requirements of this document are intended to establish qualification criteria for all sizes and pressure ratings.
This document establishes acceptable levels for leakage through the test valve and external leakage after exposure to a fire for a 30 minute time period. The fire exposure period has been established on the basis that it represents the maximum time required to extinguish most fires. Fires of greater duration are considered to be of a major magnitude with consequences greater than those anticipated in this test.
This publication includes the requirements for Fire Test of Check Valves, in its entirety. With the publication of this document, API Specification 6FD was withdrawn.
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| Published : | 08/01/2020 |
