Neck flush welding flange and plate flush welding flange is also the pipe, pipe fittings, etc. into the inside of the flange, through fillet weld and equipment or pipe connection flange.According to the material can be divided into: carbon steel, stainless steel, 304, 316, 316L.

The sealing forms of flange with neck welding are: RF, FM, M, FF.

Flanges with neck flat welding advantages: flanges with neck flat welding is also a flat welding flange, because of the diameter, so as to improve the strength of the flange and bearing strength.Can be used for higher pressure relative to the pipe.Its disadvantage: relative plate type flat welding flange cost is high, due to the shape of the characteristics of the transport process is easy to bump.

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