Stainless steel seamless steel pipe production process Stainless steel seamless steel pipe is a long strip of steel with a hollow section and no joints on the periphery.1. Manufacturing process

advantage 1. It is convenient and quick to open and close, labor saving, low fluid resistance, and can be operated frequently. 2. Simple structure, small size, short structure length, small

Butterfly valve characteristics（1） 1. The butterfly valve has the characteristics of simple structure, small size, light weight, low material consumption, small installation size, rapid switching, 90° reciprocating rotation, and small

Working principle of butterfly valve (2) In order to meet the requirements of high and low temperature, strong erosion, long life and other industrial applications, metal sealing butterfly valves have

Working principle of butterfly valve (1) Butterfly valve is a kind of valve that uses disc type opening and closing parts to rotate about 90° alternately to open, close or

Ball valve (ball valve) came out in the 1950s, with With the rapid development of science and technology, the continuous improvement of production technology and product structure, in just 40