Generally, pneumatic solenoid valves are not waterproof, please choose waterproof type when conditions do not permit, and the factory can customize it. The highest calibrated nominal pressure of the pneumatic solenoid valve must exceed the highest pressure in the pipeline, otherwise the service life will be shortened or other unexpected situations will occur. All-stainless steel type should be used for corrosive liquids, and plastic king (solenoid valve SLF) solenoid valves should be used for strong corrosive fluids.
The eight-position shift cylinder is the main pneumatic control valve on the workover rig. One of the main parts of the main engine of the workover vehicle in cooperation with the eight-position shift valve.