Long Weld Necks Flange ASTM A234 Butt Weld A182 Forged Pipe Fittings

• Quick Details

• What is Long Welding Neck Flange

Long weld neck flange (LWN flange) is also call integral flange, it means a welding neck flange has a very long neck. Commonly, the welding neck flange has a tapered neck and a bevel end which is going to butt welding with the matching pipe. But the long weld neck flange, has a straight short pipe as the neck of a long weld neck flange. Long weld neck flange (LWN flange), is used for high pressure situations, integral hub weld neck flanges are used and for very high pressure cases Long Welding Neck flanges are preferred. In this case, the weld are far from the ring to avoid bending stresses and weld stress being combined.

• Material:

Carbon steel: A105 SS400, SF440 RST37.2, S235JRG2, P250GH, C22.8

Stainless steel: F304 F304L F316 F316L 316Ti, copper, etc.

• Temperature range

Temperaturtemperatur: - 20 ° C to 200 ° C

Temperatur: - 50 ° C to 230 ° C

Nitrile rubber: -30°C to 110°C

EVAC metal seal: -270°C to 150°C

• Application:

Lwn flanges are primarily used in the petroleum and chemical industries, but can also be expected in residential and commercial buildings with temperature fluctuations and high stress, such as primary water and gas sources. Flanges are used for piping or piping to cause piping to bend or for water or air source flanges to be used for or piping to cause piping to bend or to repeat and change. Because long neck flanges are used for applications. The neck flanges are connected using a V-weld known as a butt weld.

• Packing:

No Fumigate or Fumigate Plywood/Wood Pallet or Case