Pneumatic control pneumatic valve selection guide

pneumatic regulating pneumatic valve driven by compressed air as a kind of pneumatic valves, control with simple, the advantages of quality and safety, it is widely used in petroleum, chemical industry, electric power and other industrial process control. Such an important how to give good pneumatic valve selection this?
and clear air regulating pneumatic valve in the use of equipment or device, pneumatic regulating pneumatic valve working conditions were determined: suitable medium, working pressure, working temperature and so on.
, determine and pneumatic control pneumatic valve connection nominal pipe size and the connection mode: flange, threaded and welding, etc.
, determine the pneumatic regulating pneumatic valve type: brake pneumatic valve, globe pneumatic valves, pneumatic ball valve, butterfly valve, throttle pneumatic valve, safety valve, pressure pneumatic valve, pneumatic valve, steam trap, etc.
, determine the movement pattern can be divided into: straight stroke and stroke in two ways.
, and the choice of pneumatic regulating pneumatic valve types: closed-circuit pneumatic regulating pneumatic valve, pneumatic control valve, pneumatic safety regulating pneumatic valve, etc.
and pneumatic adjusting the parameters of the pneumatic valve: for the pneumatic valve, pneumatic automatic adjustment according to different needs to allow flow resistance, discharge capacity, back pressure, etc. , to determine the nominal pipe diameter and the diameter of the pneumatic valve seat hole.
and determine the operation way of pneumatic regulating pneumatic valve: manual, electric, magnetic, electrical and pneumatic or hydraulic linkage or electro-hydraulic linkage, etc.
, according to the pipeline medium, working pressure, working temperature to determine the selected pneumatic regulating pneumatic valve and internal parts of the shell material: gray cast iron, malleable cast iron, ductile iron, carbon steel, alloy steel, stainless acid-resistant steel, copper alloy, etc.