jinnianhui金年会·金字招牌|信誉至上

Forged steel globe valve overall design, there are three kinds of flange valve bonnet is bolt type bonnet, through the concave and convex surface connection, stainless steel band and flexible graphite wound gaskets, ring joint may be adopted according to the demand, the second is welding type bonnet, after thread sealing welding, and the rigid welding according to the requirements can be directly used, the third is the sealing cover, since the seal bonnet joint with thread.Products are widely used in petroleum, chemical, pharmaceutical, electric power and other working conditions of the pipeline.