?Need torque specs for flange/gasket?
?Need torque specs for flange/gasket?
(OP)
For generic rubber or cloth reinforced gaskets in 125 - 250lb flanges, where would I locate the appropriate fastener torque specs? These are being pulled against a cast pump flange (flat or raised face)
Current spec appears to be "As tight as the impact gun makes it"
Any help would be greatly appreciated! Email direct if you have a spreadsheet or chart
Current spec appears to be "As tight as the impact gun makes it"
Any help would be greatly appreciated! Email direct if you have a spreadsheet or chart
Keep the wheels on the ground
Bob
showshine@aol.com





RE: ?Need torque specs for flange/gasket?
RE: ?Need torque specs for flange/gasket?
You indicate that the cast iron pump flange is raised face or the piping is raised face. Normally cast iron pumps are supplied with flat faced flanges and the attached piping should have flat face also. This is to prevent excessive bolt loads being applied to the cast iron (if one or both flanges are RF) which could crack the cast iron.
RE: ?Need torque specs for flange/gasket?
Keep the wheels on the ground
Bob
showshine@aol.com
RE: ?Need torque specs for flange/gasket?
Keep the wheels on the ground
Bob
showshine@aol.com
RE: ?Need torque specs for flange/gasket?
RE: ?Need torque specs for flange/gasket?
Many class 150 flanges don't develop sufficient assembly stress for full face gaskets, so you may need to look into reduced area full-face gaskets. A gasket manufacturing company in CA called Inertech markets a reduced area gasket design called "OPRA"- One Piece Reduced Area.