Electric pneumatic control valve installation use notice what item

Pneumatic control valve in use at the scene, many are often not because quality caused by the pneumatic - valve itself, but rather 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 or line is not clean. Electropneumatic valve installation should pay attention to the following aspects: when using pneumatic - valve belongs to the field instruments, require the environment temperature should be in 25 ~ 60 ℃, relative humidity & le; 95%. If it is installed in the open air or high temperature applications, waterproof, cooling measures should be taken. Where there is the source to stay away from source or increase the vibration-proof measures; Pneumatic control valve should be installed vertically, commonly special circumstances can tilt, such as the Angle is very big, or too much weight on the valve when the valve itself should increase support protection; Install pneumatic - valve pipe generally do not too high above the ground or floor, height is greater than 2 m in pipe should try to set up the platform, facilitate the handwheel operation and easy maintenance; Pneumatic control valve before installation for pipeline cleaning, eliminate dirt and welding slag. After installation, to ensure that no residue in 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 be restored to the original neutral position; In order to make the pneumatic control valve in the event of a fault or repair can continue to make the production process, under the condition of pneumatic control valve should add by-pass line. Electric pneumatic control valve installation should also pay special attention to, the installation of the pneumatic control valve position whether accord with the requirement of technological process.