BD long weld neck flanges

Long Weld Neck Flanges

The Long Weld Neck Flange is normally referred to as the high hub flange. It is designed to transfer stresses to the pipe, thereby reducing high stress concentrations at the base of the Steel flange.

The Long Wn Flange are the best designed butt weld pipe fitting of those currently available becuase of its inherent structural value. It is expensive because of the design.

Details of Asme B16.5 Socket Weld Pipe Fitting flange

1. Socket Weld flange 2. Filled weld 3. Pipe X = Expansion gap

Their static strength is equal to Slip On flange, but their fatigue strength 50% greater than double-welded Slip On flanges.

pipe fitting Long Weld Neck Flanges

Raised Face Weld Neck Flange,Long welding neck flange, lwn flanges are similar to a standard Welding Neck flanges, but the [Neck" is considerably longer than other flanges. LWN flange is often used as a nozzle for a barrel or column. In addition, there are the type LWN Heavy Barrel (HB) and the Equal LWN Barrel (E); they have a different shape and a thicker [Wall".

Tube OD sizes: 3/8 to 2 inches

Packing: No Fumigate or Fumigate Plywood/Wood Pallet or Case

Surface Treatment: Anti-rust Oil, Transparent/Yellow/Black Anti-rust Paint,Zinc,Hot dipped Galvanized.

Forged steel Flange are perfectly finished with precision using the latest machinery.

Dimension to be in accordance with JIS ANSI DIN BS standard accordingly.
Forged flange is defined as a plate type device, normally round, that is attached to the end of a pipe, fitting, valve or other object to facilitate the assembly and disassembly of a piping system.

Forged steel flanges made of carbon steel or stainless steel, the materials conform to the JIS, ASTM A182,A105, DIN17100 ST-2 and BS standard. Dimension to be in accordance with JIS ANSI DIN BS standard accordingly.

The flanges are suitable for connection of steel pipes conveying mediums such as steam, oil, air and water. They are widely used in Chemical industry and Shipbuilding . And the flanges are suitable for welding.The flanges mainly include Welding Neck, Blind, Slip-on, Lap-Joint, Socket,Reducing and Plate type.

Size available: 1/2"--72"(DN15-DN1800).             

Forged steel flanges are made in seven primary ratings:

Asme B 16.5 Class 150 lb 400 lb 900lb 2500lb 300lb 600lb 1500lbcutting and then continue to beat, to eliminate the ingot in the segregation, loose and other defects. Price and mechanical properties are higher than ordinary casting flange a grade. The flange is a part that connects the pipe with the pipe and the valve, is connected to the pipe end. It is also used for the flange on the equipment inlet and outlet.

face type:Flat Face, Raised Face, Ring Joint Face, Lap Joint Face, Male Face, Female Face, Tongue & Groove Face

Type:
Weld Neck Flange, Slip On Flange, Blind Flange, Socket Welding Flange, Thread Flange, Reducing Flange,Spectacle Blind Flange, Orifice Flange