@jmec87 thank you very much for detailed answer and addressing the exact parts of API 6D. I am now confident about my disposition on the test. Really appreciate your advice.
@LittleInch, thank a lot for the advice. I will work with the vendor to see the possibility of insulating the lines, so...
Thank you both for quick feedback
@SPDL310, I didn't find anything addressing this question on the 6D either. So assuming we start at 2551 psi and dropping to 2501 (still above the minimum required) would it be acceptable despite the 50psi drop?
@LittleInch, the valve remains under pressure to...
I am witnessing class 600 valve hydrotests (per API 6D) at around 2500 psi (customer required pressure) at the manufacturer shops. The valve size is normally between 4 to 12 inches so the test duration is between 2 to 15 minutes. There is a 2-10 psi pressure drop most of the times with no...
