Electric pneumatic control valve installation matters needing attention in application

Electric pneumatic control valve on the basis of the medium is different, the body material also accordingly have different selection, common carbon steel, corrosive selected raw materials such as stainless steel 304, perhaps 316, 316 l, also can choose lining fluorine pneumatic control valve. Several class contrast particularly electric pneumatic regulator: low temperature pneumatic control valve, pneumatic control valve in high temperature and high pressure pneumatic control valve, flow pneumatic control valve, etc. The field use of pneumatic control valve, that caused by improper use of pneumatic control valve installation, such as installation environment, installation position and direction due to reasons such as caused by improper line is not clean. Electric pneumatic control valve installation should pay attention to the following aspects: (when using 1) Electropneumatic valve belongs to the field instruments for environmental temperature should be 25 ~ 60 ℃, relative humidity 95% or less. Is installed in the open air or high temperature applications, waterproof, cooling measures should be taken. Have the source side to far away from the source or increase the antivibration measures. ( 2) Pneumatic control valve should be installed vertically, commonly special circumstances can tilt, such as the Angle is very big too much weight on the valve when the valve itself should increase support protection. ( 3) Install pneumatic - valve pipe generally don't away from the surface or plate is too high, pipe height is greater than 2 m should try to set up the platform, facilitate the handwheel operation and easy maintenance. ( 4) Electric pneumatic control valve before installation for pipeline cleaning, eliminate dirt and welding slag. After installation, to ensure that no residue is the body, should also again to the valve and clean, the access into the medium should make all open valve, in order to avoid impurity stuck. After using the handwheel institutions, should restore to the original neutral position. ( 5) Make the electric pneumatic - valve failure or maintenance case can continue to make the production process, pneumatic regulator should add by-pass line.