Welding Neck Flanges are easy to recognize at the long tapered hub

　　Welding Neck Flanges are easy to recognize at the long tapered hub, that goes gradually over to the wall thickness from a pipe or fitting.

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

　　These steel flange are bored to match the inside diameter of the mating pipe or fitting so there will be no restriction of product flow. This prevents turbulence at the joint and reduces erosion. They also provide excellent stress distribution through the tapered hub and are easily radiographed for flaw detection.

　　This flange type will be welded to a pipe or fitting with a single full penetration, V weld (Buttweld).

　　Hebei shengtian pipe-fitting group Co., ltd is specialized in manufacturing and exporting carbon steel pipe fitting and forged pipe fitting. In additation to the standard products mentioned above, we are also able to make non-standard, special-designed items according to customers’ requirement. Should any of the items be of your interests, please do not hesitate to contact us for latest information.