Bolt torque specifications:

Shown is the bolt tightening sequences for typical circular flanges. Do not fully tighten the bolts the first time around as this can tilt the flange out of parallel. The first time around tighten to approximately 1/2 of the final torque, and then repeat the sequence, tightening to the suggested torque limit.

6 Bolts                    12 Bolts                             8 Bolts                  14 Bolts

10 Bolts                   16 Bolts