There is an indent on the flange of pipe body for arranging a sealing ring in it during the assemblage of pipeline in order to increase its tightness.

The flange pipe of the high diameter groove is a new type of steel pipe connection, also known as the clip connection, there are many advantages.

Current quotation process for hydrogenation reactor has been analyzed and the main affecting factor is the weight of pipe flange and the internals of the reactor.