neck welding flange belonging to GB standard system

　　With neck  welding flange belonging to GB standard system. Is the national standard flange (also known as GB flange) is one form of expression is one of the commonly used on the device or pipe flange.

　　With neck flat welding flange height of the lower neck, stiffness of the flange, the carrying capacity increased. Compared with the welded flange, welding capacity, electrode consumption is high, can not withstand high temperature and pressure, and repeated bending and temperature fluctuations, but the on-site installation more convenient, you can omit the weld shot wound rubbing process. Scope: PN0.6 ~ 4.0MPa, DN ≤ 600mm.

　　With neck flat welding flange standards: HG20594, HG20616, GB/T9116

　　Hebei shengtian pipe-fitting group Co., ltd is specialized in manufacturing and exporting steel pipe fitting and steel flange. In additation to the standard products mentioned above, we are also able to make non-standard, special-designed items according to customers’ requirement. Should any of the items be of your interests, please do not hesitate to contact us for latest information.