Venting in double-welded slip-on flange
Venting in double-welded slip-on flange
(OP)
ASME B31.3-F308.2 state that "The need for venting the space between the welds in double-welded..."
Please help me in clarification it. Is this mean drill a hole for venting during welding? And after that is need weld to close it?
Thanks,
nlgcode
Please help me in clarification it. Is this mean drill a hole for venting during welding? And after that is need weld to close it?
Thanks,
nlgcode





RE: Venting in double-welded slip-on flange
The predrilled vent hole is also helpful to ensure that you don't blow out a bubble in the closing (back) fillet due to expansion of trapped gas in the space between the two fillets.