March 23, 2019


API 6FD – Specification for Fire Test for Check Valves – Descripción: API 6FD – Specification for Fire Test for Check Valves – API turn 1/4 week valve and non-metallic valve seat valve fire test. Fire Test for Quarter-Turn Valves and Valves Equipped with Nonmetallic seats. Specification for Fire Test for Check Valves API SPECIFICATION 6FD FIRST EDITION, FEBRUARY REAFFIRMED: SEPTEMBER

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Verify pressurization of the entire test valve body by briefly opening the body cavity vent valve Item 15and observing flow. Impingement of water or steam from external leakage onto flame thermocouples or calorimeters can result in a substantial drop in the indicated temperature of the affected sensor seven if no actual drop in flame temperature has occurred.

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API 6FD – PDF Free Download

The degree of exposure to asbestos varies with the product and the work practices involved. Piping arranged to provide vapor trap.

SI equivalents have also been included in all tables. Test valve mounted in its normal operating position. Sales Tax — All U. Returns — All returns must be pre-approved by calling the IHS Customer Service Department at for information and assistance. The agreement lasts for three years, and the fee is charged once per year.

Open valves Items 5 and 6 to flood the system and purge the air.

Record the readings on the sight gauge Item 4 and the calibrated container Item Status of the publication can be ascertained from the API Authoring Department [telephone Establishes the requirement for testing and evaluating the pressure containing performance of API Spec 6A and 6D check valves when exposed to fire. Maintain this pressure during the burn and cool-down period. Requests for permission to reproduce or translate all or any part of the material published herein should also be addressed to the director.


With respect to particular circumstances, local, state, and federal laws and regulations should be reviewed. Subscription updates are sent by World Mail. Orders — Orders shipped within the U. Call for more information. Protection for test personnel shall be provided. Flame temperature thermocouples Ref.

Measure and record the through valve and external leakages over a 5minute period. Enclosure for test-horizontal clearance between any part of the valve and the enclosure shall be a minimum of 6 inches mm. Fuel gas supply to burners Ref. Monitoring Standards monitoring is a free service designed for you who wish to be alerted of changes to or new editions of the 6td required in your work.

Decrease the test pressure to the low test pressure value shown in Table 1. The test setup shall include l l h ” 38 mm cube calorimeter blocks made of carbon steel with a thermocouple located in the cen- 3.

6fc more information, contact: Please note that extra ai cost and delivery time may apply for products ordered as hardcopy, as the products must first be shipped from our suppliers overseas.

API-6FD | Specification for Fire Test for Check Valves | Document Center, Inc.

Certain serious adverse health effects are associated with asbestos, among them the serious and often fatal diseases of lung cancer, asbestosis, and mesothelioma a cancer of the chest and abdominal linings.


Neither should anything contained in the publication be construed as insuring anyone against liability for infringement of letters patent. Mail Orders — Payment by check or money order in U. Continue collecting water in the calibrated container for use in establishing the external leakage rate. These standards are not intended to obviate the need for applying sound engineering judgment regarding when and where these standards should be utilized.

The member discount does not apply to purchases made for the purpose of resale or for incorporation into commercial products, training courses, workshops, or other commercial enterprises.

Fires of greater duration are considered to be of a major magnitude with consequences greater than those anticipated in this test. Your consent to our cookies if you continue to use this website. Qpi a 6fv extension of up to two years will be added to this review cycle.

The maximum external leakage shall not be greater than the value shown below Ref. Vent valve on test valve body cavity.

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Start Webshop Product catalog Product presentation. This document establishes acceptable levels of leakage through the test valve and also external leakage after exposure to a fire for a minute time period.

There are currently in use and under development a number of substitute materials to replace asbestos in certain applications.