Since valves are developed, pneumatic valves cannot be replaced. Pneumatic valves play their own unique role in water supply system. Pneumatic valves are mainly used in chemical engineering, pharmacy, oilfields, micro-electronics, electricity generation, power transmission and other industrial fields,...
Low temperature globe valves are suitable for regulating system of storage equipments for low temperature fluids, having features of flexible operation, reliable sealing, etc. The globe valves can be also used for other low temperature or copious cooling media. Normal temperature globe valves refer...
Flat gate valves have following structural features: 1. The sealing structure of seat is elastic and equipped with pre-tightening force. The sealing between seat and sealing face is always face-to-face sealing. 2. The seat has self-cleaning performance, and it cannot be washed out directly by...
The disc or butterfly plate of butterfly valves rotates shaft roundly to open or close. Butterfly valves are mainly used for cutting-off or throttling in pipes. Butterfly valves are suitable for pipelines of engineering systems to transmit corrosive or non-corrosive fluid media, including coal gas,...
Working principles of plug valves Plug valves are a type of valves which use plug with a hole as disc. The plug rotates along with the stem to realize on-off. Small plug valves without packing are also called as corker valve. Most of plug used by plug valves are cone (some also cylinder). The plug cooperates...
Structural features of stainless steel butterfly valves The spring of stainless steel butterfly valves is assembled together with adjusting bolts on plate. The structure compensates effectively tolerance zone between shaft sleeve and body and elastic deformation of stem under the pressure of media,...
Double offset butterfly valve is widely used in water supply, circulating water of electricity, petroleum, chemical engineering, etc. The common nominal diameter ranges from DN100mm to DN2000mm. The nominal pressure is 0.6MPa~1.6Mpa. In general, double offset butterfly valve is used as regulation or...
Extension rod butterfly valve is widely applied in chemical engineering, petrifaction, petroleum, paper making, mining, power, liquefied gas, food, pharmacy, drainage, municipal administration, electric industry, urban construction, etc. Several factors should be considered when choose extension...
Pull rod welding ball valve has impressive performances in various industries. Because of excellent properties and high reliability, pull rod welding ball valve attracts more attentions than cast steel ball valve. Currently, pull rod welding ball valve has been widely applied in urban gas, urban heating,...
It is well known that valves are used to transport or control fluid and gas. Valves have wide application in fluid pipe system. Valves are mainly used to separate equipment and pipe system, control flow rate, prevent backflow, control and release pressure. And in order to ensure that valves can play...