ANSI butt weld neck flange:ANSI B16.5,1/2 in -24 in

The butt welding neck flange is a connecting device of two large diameter pipeline.Usually two flange plus a number of fastening bolts.It will become hard, lower plastic and strength enhancer after adding appropriate amount of carbon due to its good plastic and low strength. Its connection is likely to withstand very high tensile, compression resistance, torsion esistance. The butt welding neck flange with convenient  draw materials, simple manufacture,low cost,wide use but less rigid, therefore it is not supposed to be used for extremely hazardous situations, flammable, and explosive chemical process piping system.The butt welding neck flange is widely used in petroleum, chemical, pharmaceutical, electric power, metallurgy, gas, nuclear power, plumbing, and other industries. The types of seal surface have a flat face and a raised face. The welding rod of butt welding neck flange consume more and can not bear the action of high temperature, high pressure, repeated bending and temperature fluctuation.

1. Materials:carbon steel, cast steel, alloy steel, stainless steel, copper, aluminum alloy, PPC, etc.

2. Producing methods: pushing, pressing, forging, casting, etc.
3. Manufacturer's standards:GB, ANSI, DIN, JIS,ect.
4.Size standards: ANSI B16.5 :1/2” -24”,CLASS 150-2500  ANSI B16.47: 26” -60”,CLASS 75-90  API 6A:1-13/16” -30”,CLASS 2000-20000  DIN/BS/JIS: 10 -4000mm,PN2.5-40