New model with neck flat welding flange

slip on flangeThe new model has been launched, which is a product launched by Xin Bohai Pipe Fitting Co., Ltd. after Q235A material flange. It is suitable for connecting steel pipes with a nominal pressure not exceeding 2.5 MPa.

1、 Classification of neck flat welding flanges: The sealing surface can be made into three types: lubricated, concave convex, and mortise and tenon groove.

2、 Its advantages:

1. The neck flat welding flange not only saves space and reduces weight, but also ensures that the joint does not leak and has excellent sealing function. The reason why the compact flange size is reduced is because the diameter of the seal is reduced, which will decrease the cross-section of the sealing surface.

2. Secondly, the flange gasket has been replaced by a sealing ring to ensure that the sealing face matches the sealing surface. Neck welding flanges are divided into threaded (threaded) flanges and welded flanges. The low-pressure small diameter has threaded flanges, while the high-pressure and low-pressure large diameter both use welded flanges. The thickness of the flange plate and the diameter and quantity of the connecting bolts vary depending on the pressure.