Hi,
I'd like to know if it is necessary/practical to use ASME PCC-2 Mandatory Appendix II - Stored Energy Calculations for Pneumatic Pressure Test for pneumatic leak testing of equipment that has already been hydrotested in the shop.
Background:
Loop Reactor with flanged/gasketed joints.
MAWP...
Hi,
I'd like to know an approximate DBTT for 17-4PH in the H1025 condition. I've found some limited CVN data (Link) but this doesn't give a clear DBTT. Is there a specific impact energy that can be considered a minimum for ductile behavior?
I generally see sacrificial anodes used in exchangers to protect against galvanic corrosion between two dissimilar metals. Are they ever used in 100% C/S construction? If not, why not? Is upgrading the metallurgy generally a better long term solution? The galvanic cell created to corrode the...
Hi,
Can someone provide info on advantages of welding a nipple into a sockolet vs backwelding a threaded nipple in a threadolet? I read on another forum that cracking can occur in the backweld of a threadolet due to thermal expansion of the nipple during welding. This would not occur in a...
