Adjust the test system, excluding the test valve, during the test period to maintain the temperatures and pressures required. However, the mass of the valve is determined in part by the body end type.
Valve having non-identical internal construction either side of the centre line of the obturator along the axis running through the body ends. In such a case, the permissible average leakage rates are those applicable to the full bore or regular pattern valve. It's easy to join and it's free.
It is not applicable to the testing requirements for valve actuators other than manually operated gear boxes or similar mechanisms when these form part of the normal valve assembly. Since there is nothing in the scope to restrict it in any way, I think this is an appropriate interpretation.
This is usually for economical or time-consuming reasons, or because the standards do not include the sizes or pressure classes. Floating ball valve has been approved and should also qualify a trunnion ball valve. However, these two aspects of aerospace machining can conflict, as manufacturers strive to maintain machining efficiency with new materials by using new methods and cutting tools. Students Click Here Join Us! Worldwide Standards We can source any standard from anywhere in the world.
Manage society memberships. Telecommunications Standards. Vent the pipework and valve body cavity. The change in title suggests that it is no longer intended that this standard be restricted to soft seated valves and that it could more generally be used for any valve.
Record the external leakage. Your shopping cart is empty. This International Standard covers the requirements and method for evaluating the performance of valves when exposed to defined fire conditions. This standard is also available to be included in Standards Subscriptions.
Mid-level Similar to Top level, but this valve has not been tested. American Industrial Hygiene Assn. Desig- pressure to which the references The following standards contain provisions which, through reference in this text, constitute provisions of this International Standard. Red Flag This Post Please let us know here why this post is inappropriate. Association Connecting Electronics Industries.
The valve seat was leaking during the heating period. Methods of evaluating the performance of intelligent valve positioners with pneumatic outputs mounted on an actuator valve assembly.
American Petroleum Institute. Fire testing of valves is potentially very hazardous and it is essential that the safety of personnel be given prime consideration. Also in case of a fire safe approval we do pre-tests in our fire safe test rig, before we order the third party for witnessing.
Learn more about the cookies we use and how to change your settings. Fire test method warning Fire testing of valves is potentially very hazardous and it is essential that the safety of personnel be given prime consideration. Aerospace Industries Association.
Thank you for helping keep Eng-Tips Forums free from inappropriate posts. Find Similar Items This product falls into the following categories. Valve having identical internal construction either side of the centre line of the obturator along the axis running through the body ends. It is accepted for any valve from the refinery back to the well head.
However, there is nothing in particular about either standard that would preclude its use with any valve per se. International Electrotechnical Commission. Standards Australia International, Ltd.
The standard is now in your shopping cart. If the document is revised or amended, you will be notified by email. With over years of production history, the automotive industry has been at the forefront of manufacturing technology since its inception.
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Click Here to join Eng-Tips and talk with other members! We have no document history for this standard. Technology International, Inc. This standard is not included in any packages.
Popular Standards Bundles. Other types of valve actuators e. We have no amendments or corrections for this standard. American Welding Society, converseen Inc.
Testing of valves. Fire type-testing requirements
Addison-Wesley Publishing Co. Other types of valve actuators for instance electrical, pneumatic or hydraulic may be equipped with special protection for this valve test. Springer-Verlag New York, Inc. At the time of publication, the editions indicated were valid.
Trans Tech Publications Inc. Promoting, selling, recruiting, coursework and thesis posting is forbidden. Please first log in with a verified email before subscribing to alerts.
British Standards Institution. Society of Allied Weight Engineers, Inc. Eliminate leaks as necessary. Builders Hardware Manufacturers Association, Inc.
After cool-down from the fire test, the valve is hydrostatically tested to assess the pressure-containing capability of the valve shell and valve seats. It does not cover the testing requirements for valve actuators other than manually operated gear boxes or similar mechanisms when these form part of the normal valve assembly. The test equipment shall not subject the valve to externally applied stress affecting the results of the test. Testing of valves - Fire type-testing requirements. You may delete a document from your Alert Profile at any time.
Aerospace manufacturing has always been on the cutting edge, from materials to production techniques. The fire testing of such actuators is outside the scope of this standard. Sustainable Development Goals and standardisation, how do they connect? Standards Subscription may be the perfect solution.
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