RFWN Flange (Raise Face Weldneck Flange) are easy to recognize. They include a long tapered hub that gradually meets the wall thickness from the pipe or fitting.

The long tapered hub of RFWN Flange provides an important reinforcement for use in several applications involving high pressure, sub-zero and / or elevated temperatures. In conditions of repeated bending, caused by line expansion or other variable forces, the smooth transition from flange thickness to pipe or fitting wall thickness is extremely beneficial.

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