The main forms of the valve are flanges, threads, card sleeves, clamps, internal self tightening, welding, clips and so on. They are suitable for different occasions, and the following are introduced in detail.1, flange connection is the most frequently used connection form in valves. According to the shape of the joint surface, it can be divided into the following types: 1) smooth type: used for valves with low pressure. Processing is more convenient 2) concave and convex type: high working pr

There are many ways of classifying ball valves. The following four kinds of classification are mainly introduced.(1) classified according to the sphere structure type: floating ball type and fixed ball type.The main products are flanged floating ball valve, fixed ball two piece ball valve, fixed ball soft seal ball valve, lining fluorine ball valve, fixed ball stainless steel high temperature ball valve and so on.