Can a smaller bolt diameter than the one recommended in ASME B16.5 be used to install a PRV valve, provided the manufacturer of the valve delivers bolting calculations to support this.
We received PRV’s with 8” ASME B16.5 RTG flanged connection on the discharge side. The bolt hole diameter is...
Thank you for your answers.
MJCronin, I'm just an engineer, more used used with the design phase and amazed by what field engineering will do to get things done(first time on a construction site). To make things worse we're building in the middle of nowhere. So, if you don't have enough blind...
That's right,I'm testing against the closed valve. In this case the valve is the limit between two different piping classes. The valve is on the CL 300 side, the test system on the CL 150. The test pressure is lower than the CL 150 flange rating so given the difference between the two classes...
I posted this question in the ASME (mechanical)code Issues forum, but maybe this forum is a better place for it.
http://www.eng-tips.com/viewthread.cfm?qid=303124&page=1
ASME B31.3 para 345.3.4 allows using a valve as a limit for tested piping. "A valve may be used provided the valve (including
its closure mechanism) is suitable for the test pressure."
1. How can it be determined that a valve satisfies this demand?
2. Can we do a pneumatic test on a piping...
In a normal place, yes. I forgot to mention there are huge delivery contraints, maybe months of waiting to have the flanges sent to the manufacturer and back.
To what extent are we allowed to modify standardized piping components in a facility designed to ASME B31.3?
We have received orifice flanges with no pressure taps drilled, and orifice flanges with no jack screws. My question is:
Can we still consider the orifice flange as a B 16.36 flange if we...
