Re: Pneumatic test for llines at site

<a href="/group/PipingDesign/post?postID=py5KmVArbpYsqYHHI4ti-xGVgEpvNVUYAlrNRMnBwecSCVprX8OejZ-0caeJcEk7pgJ9pAHNqJw">bbullough@foth.com</a> wrote:

> Assuming that the proper valves, fittings and other components of a piping
> system are properly selected, they will have much higher pressure ratings
> than the pipe or especially the connections. Therefore those components
> will not fail a pressure test. The purpose of the pressure test to to
> verify integrity and pressure rating of the system. The pressure test
> conditions of individual components should be higher. Follow B31.3.

If a fitting is modified (say, by set-in welding of a half coupling on a FOB reducer for a drain connection) is the reducer fitting still "certified"? If not, then what about elbolets?

<a href="http://pipingdesign.com/images/reducer_drain.jpg">http://pipingdesign.com/images/reducer_drain.jpg</a> <a href="http://pipingdesign.com/images/ecc_red_bottom_flat_drain.jpg">http://pipingdesign.com/images/ecc_red_bottom_flat_drain.jpg</a>

Paul Received on Fri Dec 22 16:55:00 2006