LittleInch - We can't replace it simply, since spare valve is not availalbe and threads that got ripped are in valve body.
geesamand - Yes, the preload shall increase on all remaining studs and more specifically to adjacent nearbuy studs. This is 8"x600 # butterfly valve with four threaded...
Hi;
One of the cap screw's threads got ripped off during final torqueing of 8"x600# Butterfly valve between flange joints. Can this piping system be operated with remaining 11 studs. What is the gasket seat force required to maintain the flange joint integrity ?
Thanks in advance,
Thank TGS4 and Moltenmetal for your suggestion. Unfortunately, reducing flange or hubbed flange is not an option.
So, for solution per option through Section VIII, div 1; does it require a typical flange design to meet this specific custom requirement ? Any more details, clause, equation from...
Need to weld 2" SCH 80 A106-GrB pipe by drilling a hole on 3"x150# A105N blind flange. Per B16.5, table 6; allowable smallest size of hole for 3" blind flange is 1 1/4". Is there any way (in B31.3 or ASME VIII) than can support this modification ? Operating pressure/temp is 5 bar and 130 Deg C...
