Pipe flanges have flush or flat surfaces that are perpendicular to the pipe to which they attach. Two of these surfaces are mechanically joined via bolts, collars, adhesives or welds. This video ...

Toolless install pins work as convenient reference points to level flange for tack and weld-out Hardened pins automatically center on 1-1/2" to 2-5/8" (38 to 66 mm) holes or flange thickness 4-5/8" to ...