As already mentioned, volumetric NDT UT will b feasible. however generally what we will do for branch connections is PT (either DPT or MPT)preferable first of the root weld and then of the final weld. PT of RF pad is so installed shall also be done.
Thank you all for your replies, all being valid. Hydrotesting followed by leak tests during unit start is a SOP which is generally used. pneumatic testing upto these high pressures is not generally recommended owing to high amount of energy stored during pneumatic making it a safety concern...
Hi folks! we have an Airfin cooler (REAC) Of hydrotreater unit. Hydrotesting was carried out upto 145 kg/cm2. No leaks were identified from the REAC plug during testing. However during start up of unit leak was identified with hydrogen in service during leak testing at 40 kg/cm2 in one plug of...
