Align the piping, set the joint at neutral length, utilize even bolt torque in a very star pattern, and make sure guides and anchors are mounted to spec. 15. Use two wrenches when tightening bolts. When tightening the again up rings of rubber flanges, tighten bolts in cross pattern sequence https://metal-bellows-expansion-j92579.blogminds.com/the-smart-trick-of-universal-expansion-joint-illustration-that-no-one-is-discussing-36302549