Protective measures for pneumatic actuator installation

When installing the valve, in order to prevent metal, sand and some other foreign matter from entering the valve and damaging the sealing surface of the valve, it is necessary to install the filter and wash the valve. In order to adhere to the purity of compressed air, the need to install an oil-water separator or air filter in front of the valve. Considering that the valve can be viewed during operation, it is necessary to install instruments and view valves. In order to adhere to the working temperature, the valve is equipped with heat insulation equipment; To be installed behind the valve, a relief valve or check valve is required; Continuous valve operation is considered in order to prevent hazards, parallel or bypass systems are installed.

1, check valve protection equipment: In order to prevent the check valve leakage or failure of the media backflow, resulting in product quality decline, the formation of accidents and other adverse consequences, check valve before and after the setting of one or two cut-off valves. If two shut-off valves are provided, the check valve can be easily removed for repair.

2, safety valve protection equipment: device method before and after - generally do not set the spacing valve, only in individual cases, can be used. Such as the medium force contains solid particles, affecting the safety valve can not be closed after the jump, to the safety valve before and after the device - only with lead seal gate valve, gate valve should be in full open condition, gate valve and safety valve directly equipped with a DN20 to large gas view valve. When soothing the release of wax and other media at room temperature for solid condition, or decompression gasification and light liquid medium temperature below 0 degrees Celsius, the safety valve needs steam tracing. For the safety valve of corrosive media, depending on the corrosion resistance of the valve [], consider adding anti-corrosion explosion-proof film at the entrance of the valve. Gas relief valve - A bypass valve is provided as per its diameter for manual discharge.

pneumatic actuator