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About This Item


Full Description

This document establishes the requirements for testing and evaluating the pressure-containing performance of API Specification 6A and API Specification 6D automatic backseating valves when exposed to fire. The performance requirements of this document are intended to establish standard limits of acceptability regardless of size or pressure rating.

This document establishes acceptable levels for leakage through the test valve and also external leakage after exposure to a fire for a 30-minute time period, both before and after reworking the stuffing box. The burn 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.

Document History

  1. API Spec 6FC


    Specification for Fire Test for Valves with Automatic Backseats, Fourth Edition

    • Most Recent
  2. API Spec 6FC (R2006)

    Fire Test for Valve with Automatic Backseats, Includes Errata 1 (2008)

    • Historical Version