Fizza453
Mechanical
- Jun 22, 2011
- 262
We have to manufacture air cooled heat exchanger in accorance with Appendix 13 of ASME Section VIII Division 1. Mterial is duplex UNS 31803. Impact test is required per UHA-51. Do we need production test plate per UG-84(i)?
It is my understanding that UG-84(i)(3) requires one production test plate (PTP) per category A and B joint per WPS. Since in air cooled heat exchnager (rectangular headers), there is no category A or B joints, so we dont need PTP. Any advise please?
Nasir
Welding Engineer
DESCON ENGINEERING LIMITED
PAKISTAN
It is my understanding that UG-84(i)(3) requires one production test plate (PTP) per category A and B joint per WPS. Since in air cooled heat exchnager (rectangular headers), there is no category A or B joints, so we dont need PTP. Any advise please?
Nasir
Welding Engineer
DESCON ENGINEERING LIMITED
PAKISTAN