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Types Of Pneumatic Control Valves

Types Of Pneumatic Control Valves

1. Pneumatic diaphragm control valve is the terminal industrial process measurement and control system control device, is composed by pneumatic diaphragm actuator, direct through single-seat,double seat and sleeve valve, etc., which can automatically change the valve trim position according to...

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1.Pneumatic diaphragm control valve is the terminal industrial process measurement and control system control device, is composed by pneumatic diaphragm actuator, direct through single-seat,double seat and sleeve valve, etc., which can automatically change the valve trim position according to the control signal system , changing the flow area between the valve trim and the valve seat, to change the valve drag coefficient, to realize the regulation for the medium flow, pressure and level and other process parameters adjustment. 

2.Pneumatic ball valve is ball valve with pneumatic actuator.Pneumatic actuators perform relatively fast, with the fastest switching speed of 0.05 seconds/time, so it is usually called pneumatic quick cut ball valves.Pneumatic ball valves are usually with various accessories, such as solenoid valve, air source treatment sanlian pieces, limit switch, locator, control box, etc., in order to realize the local control and remote centralized control, in the control room can control the switch of the valve, do not need to run to the field or high altitude and dangerous manual control, to a great extent, save the human resources and time and safety.The specific types of pneumatic ball valves are: stainless steel pneumatic ball valves, plastic pneumatic ball valves, carbon steel pneumatic ball valves, two pneumatic ball valves, three pneumatic ball valves, four pneumatic ball valves.

3.Pneumatic butterfly valves are composed of pneumatic actuators and butterfly valves.Pneumatic butterfly valve is a kind of circular butterfly plate rotating with the stem for opening and closing, so as to realize the enabling action of pneumatic valve. It is mainly used as a truncation valve, and can also be designed to have the function of regulating or segmental valve and also regulating.Pneumatic butterfly valve classification: stainless steel pneumatic butterfly valve, hard seal pneumatic butterfly valve, soft seal pneumatic butterfly valve, carbon steel pneumatic butterfly valve.The main advantages of the pneumatic butterfly valve are simple structure, small volume, light weight, low cost, and the characteristics of the pneumatic butterfly valve are particularly prominent. The valve is installed in the high altitude dark channel, easy to operate through two five-way electromagnetic valves, and can also adjust the flow medium.

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