API 6FD PDF

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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It has been of great usefulness in minimizing fire hazards associated with petroleum processing. Status of the publication can be ascertained from the API Authoring Department [telephone Returns — All returns must be pre-approved by calling the IHS Customer Service Department at for information and assistance.

Call for more information. Piping upstream of the test valve larger than one inch 25 mm nominal pipe size or one-haif of valve nominal size whichever is smaller must be enveloped in flame for a distance of at least six inches mm.

Customers claiming tax-exempt status must provide IHS with a copy of their exemption certificate. Record the readings on the sight gauge Item 4 and the calibrated container Item Flame temperature thermocouples Ref.

The burn period has been established on the basis that it represents the maximum time required to extinguish most fires. Piping arranged to provide vapor trap. MST to ensure overnight delivery. This edition of Spec 6FD is the first edition and was approved by letter ballot in September There are currently in use and under development a number of substitute materials to replace asbestos in certain applications.

Neither should anything contained in the publication be construed as insuring anyone against liability for infringement of letters patent. Leakage rates are milliliters per inch of nominal valve size per minute milliliters per millimeter of nominal valve size per minuteaverage over the duration of the particular test period. Verify that the test valve has unseated, by observation of steady flow through the vent valve, then close the vent valve. Standards monitoring is a free service designed for you who wish to be alerted of changes to or new editions of the standards required in your work.

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The test may continue with no downward adjustment of the burner controls and provided that at least one flame thermocouple and one calorimeter are functioning.

Other standards under the jurisdiction of this committee include: Maintain this pressure during the burn and cool-down period. Establishes the requirement for testing and evaluating the pressure containing performance of API Spec 6A and 6D check valves when exposed to fire. Protection for test personnel shall be provided.

A N P S 16 valve will qualify all larger sizes. For more information about such agreements, or product availability as hardcopy, please contact us by phone 67 83 87 00 or email salg standard.

Hot Spot API 6FA/6FD and API 607 review

Note that the comma is used as a decimal marker for metric data. Test valve mounted in its normal operating position. Manufacturers and users are encouraged to develop and use effective substitute materials which can meet the specifications for, and operating requirements of, the equipment to which they would apply. This specifcation shall become effective on the date printed on the cover but may be used voluntarily from the date of distribution.

Open valves Items 5 and 6 to flood the system and purge the air. This product xpi only be purchased electronically by customers who have a web subscription agreement.

Fires of greater duration are considered to be of a major magnitude with consequences greater than those anticipated in this test.

Enclosure for test-horizontal clearance between any part of the valve and the enclosure shall be a minimum of 6 inches mm. Every effort has been made by the Institute to assure the accuracy and reliability of the data contained in them; however, the Institute makes no representation, warranty, or guarantee in connection with this publication and hereby expressly disclaims any liability or responsibility for loss or damage resulting from its use or for the violation of any federal, state, or municipal regulation with which this publication may conflict.

API 6FD 止回阀耐火试验规范_图文_百度文库

Records of the test upon which certifications are based shall be available for purchaser’s review on request. For the test, it may be necessary to modify this joint to eliminate leakage. Decrease the test pressure to the low test pressure value shown in Table 1. Fuel gas supply to burners Ref. Subscription – always available and updated A aapi subscription provides an easy and secure access to standards, and you are guaranteed to always have the latest edition.

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Momentary pressure losses are permissible, provided their cumulative recovery time is less than two minutes.

Consult the most recent edition of the U. Vessel for water 4.

API / 6FA / 6FD Conformity Certificate

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Record the reading on the calibrated sight gauge Item 4. API is not undertaking to meet the duties of employers, manufacturers, or suppliers to warn and properly train and equip their employees, and others exposed, concerning health and safety risks and precautions, nor undertaking their obligations under local, state, or federal laws.

API standards are published to facilitate the broad availability of proven, sound engineering and operating practices.

Empty the graduated downstream container Item This service is not available if you are a URL user where you do not log 6fc with an email address. Other options, including next-day service, air service, and fax transmission are available at additional cost.

Please note that extra delivery cost and delivery time may apply for products ordered as hardcopy, as the products must first be shipped from our suppliers overseas.

The degree of exposure to asbestos varies with the product and the work practices involved. Api Norma API Cooling may, at the manufacturer’s option, be natural or forced. API publications may be used by anyone desiring to do so. Sales Tax — All U.