Anbaopart

  The most used  flange  types according to ASME B16.5 are: Welding Neck flange, Slip On flange, Socket Weld flange, Lap Joint flange, Threaded flange and Blind flange. Slip-on Flanges  - are all bored slightly larger than the O.D. of the pipe. Weld Neck Flanges  - is normally referred to as the high hub flange. Blind Flanges  - available to seal both pipes and vessels Lap Joint Flanges  - available in a range of sizes to pair with stub end fittings for easy dismantling Threaded Flanges  - engineered to fit pipes with external threads for weld-free fits Socket-weld Flanges  - designed with a socket fit and top weld for ideal inner flow in pipe systems Custom pipe flanges can be manufactured from a wide variety of  materials  and material grades. Carbon Steel flanges - the main material is carbon steel flange or end flange connectors. Stainless Steel flanges - F304 F304L F316 F316L 316Ti, Copper etc. Alloy Steel flanges- accord to AS...

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 flanges 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).