For the cover of rolled stainless steel plate welded shape, cover and vacuum sealing flange at the end of the trough of large vertical lathe machining fine car molding.

Flange surface roughness of the influence, especially sealing effect when using the soft cushion, seal surface coarse degree value big are caused by the leak is one of the main reasons why.

ANSI flange sealing principle is very simple: bolt two seal face mutual extruding flange gaskets and formed the seal.