Seat Tightness and CDTP differences
Seat Tightness and CDTP differences
(OP)
Can anybody explain to me , what are the differences between Seat Tightness Pressure (per API 527) and CDTP (Cold Differential Test Pressure)? I having difficulties to distinguish clearly between them, because i think this two terms have equal pressure or in other means they were Synonym.. Please someone explain me clearly??
Appreciate for your comment and answer
Thanks and regards
Zachari Alamsyah
Appreciate for your comment and answer
Thanks and regards
Zachari Alamsyah





RE: Seat Tightness and CDTP differences
For Seat Tightness testing, the PRV is placed underwater and pressurized to 90% of CDTP. The leakage is measured in "Bubbles per Minute", and there are allowable [very small] leakage rates for most PRV's.
RE: Seat Tightness and CDTP differences
CU, Smiler