Welding Neck Flange

Welding Neck flange
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).
The high quality and cost effective Welding Neck Flange can be produced by Guokun Machinery. If need, please contact with us. gina@guokuncasting.com or gina.guokun@gmail.com

Other Flange we produced:
Type: Indurtrial pipe flange, blind flange, wled-neck flange, slip-on flange, socket weld flange, lap-joint flange, threaded flange, steel casted flange,  etc
Process: Investment casting, sand casting, silica sol casting, lost wax casting, close die forging, mould forging, precision machining, welding, etc
Material: carbon steel, alloy steel, stainless steel, brass, plastic, etc