For recommended bolt
tightening sequence for flanges, Click Here.
NOTE: Tap end studs and stud bolts shown above have lengths to
accommodate joining 30" 600 MSS full bore flanges with flange
thickness as shown.
30" 600 MSS blind flanges have a flange thickness of 6".
To join a 30" 600 MSS blind flange to a full bore
flange, use studs with lengths as follows.
Studs: 11-1/2" long.
Bolts: 16-3/4" long.
have chosen to make 30" nominal diverters in 500 and 1000
psi working pressure ratings, but have chosen existing MSS
flanges rather than proposing new flanges.