Pneumatic valve selection points, should be how to choose the right?

Pneumatic valve is widely used in chemical, petrochemical and other industries.


pneumatic valve is used to drive the piston cylinder valve, solenoid valve, limit switch box, filtering pressure reducing valve accessories, such as automatic control can be realized. Pneumatic valve is usually used to make a quick cut with, good sealing performance and fast cutting speed, is cannot replace by other valves. Also have with the electrical valve positioner, make pneumatic - valve to the medium flow or pressure adjustment.





pneumatic valve according to the form of a cylinder can be divided into two kinds of single and double action, double-acting pneumatic valve switch all need air source, and single acting pneumatic valve open or close when need air, once the gas source faults or solenoid valve power failure, the valve will be automatic reset because of the role of the spring, in some cases, for those who need to valve must be automatic reset condition, you need to choose the single-acting pneumatic valve.


pneumatic valve type is more, there are pneumatic valve, pneumatic screw valve flanges, ultrathin pneumatic valve, pneumatic type O valve, pneumatic V type valve, pneumatic three-way valve, pneumatic four-way valve, pneumatic sanitary valve, pneumatic valves, pneumatic heat preservation valve, pneumatic rubber fluorine valve and so on.
pneumatic type O valve suitable for use in switch two cut, pneumatic V type valve suitable for adjustment, commonly used in paper industry for pulp medium such as automatic control, pneumatic three-way valve and the four-way valve is used to reverse medium, while the pneumatic sanitary valve is suitable for the high demand for food, pharmaceutical and other health situation, pneumatic rubber fluorine valve is suitable for the corrosive medium, pneumatic heat preservation valve is suitable for easy crystallization or normal temperature solidification of the medium, such as asphalt, etc.