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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English units are in all cases preferential and shall be the standard in this specification. 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.
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.
Most orders are shipped the same day. Api Norma API Fuel gas supply to burners Ref. Close valves Items 16 and Piping arranged to provide vapor trap.
Measure and record the through valve and external leakages over a 5minute period.
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API 6FD 止回阀耐火试验规范_图文_百度文库
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Maintain this pressure during the burn and cool-down period. Generally, API standards are reviewed and revised, reaffirmed, or withdrawn at least apj five years.
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Subscription updates are sent by First-Class Mail. Empty the graduated downstream container Item These standards are not intended to obviate the need for applying sound engineering judgment regarding when and where these standards should be utilized.
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Flame temperature thermocouples Ref.
Hot Spot API 6FA/6FD and API 607 review
This ensures that you are always up-to-date appi saves you both time and money. 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.
Enclosure for test-horizontal clearance between any part of the valve and the enclosure shall be a minimum of 6 inches mm. Continue collecting water in the calibrated container for use in establishing the external leakage rate. Open valves Items 5 and 6 to flood the system and purge the air.
Monitoring 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. Decrease the test pressure to the low test pressure value shown in Table 1.
API Spec 6FD (R2013)
Other standards under the jurisdiction of this committee include: Remember me Forgot password? The factors used for conversion of English units to SI units are listed below: 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.
6df contained in any API publication is to be construed as granting any right, by implication or otherwise, for the manufacture, sale, or use of any method, apparatus, or product covered by letters patent. Requests for permission to reproduce or translate all or any part of the material published herein should also be addressed to the director. For larger size valves, three blocks shall be used, as shown in Figures 2 or 4. Your consent to our cookies if you continue to use this website.
Neither should anything contained in the publication be construed as insuring anyone against liability for infringement of letters patent. Cooling may, at the manufacturer’s option, be natural or forced. Momentary pressure losses are permissible, provided their cumulative recovery time is less than two minutes. Purchase orders are accepted from established accounts. Minimum height of enclosure shall be 6 inches mm above the top of the valve. You need to log in before adding standards to the monitoring apj.
API Spec 6FD (R)
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