WN flange

WN flange is the abbreviation of neck butt welding flange. Our common abbreviations are as follows: SO -- neck flat welding flange

WN -- neck butt welding flange

PL -- plate flat welding flange

RF -- sealing surface form code, and the sealing surface form is" Raised face"

WN flange is a connecting piece on industrial pipeline, which is used as an accessory for connecting pipe ends. Stainless steel flange is also called flange flange plate or flange. Stainless steel flanges are connected by flanges, gaskets and bolts as a removable connection of a group of combined sealing structures

WN flanges can be divided into carbon steel and stainless steel according to their materials. The quality of butt welding flanges is good among flanges, the price is slightly higher, and the pressure it bears is also large. There is no problem when it is used in chemical industry and petroleum pipelines

WN flange: applicable to pipelines with large pressure or temperature fluctuations or pipelines with high temperature, high pressure and low temperature, and for the connection of pipelines and valves with PN greater than 2.5MPa; It is also used to transport expensive, flammable and explosive media on the pipeline

WN flange material description:

Carbon steel flange material: 20 #, Q235, 16Mn, ASTM A105, ASTM A350 LF1, LF2 CL1/CL2, LF3 CL1/CL2, ASTM A694 F42, F46, F48, F50, F52, F56, F60, F65, F70

Stainless steel flange material: ASTM A182, F304, 304L, F316, 316L, 1Cr18Ni9Ti, 0Cr18Ni9Ti, 321, 18-8

Alloy steel flange materials: ASTM A182 F1, F5a, F9, F11, F12, F22, F91, A182F12, A182F11, 16MnR, Cr5Mo, 12Cr1MoV, 15CrMo, 12Cr2Mo1, A335P22, St45.8/III