Maintenance and function of air filter pressure reducing valve

Maintenance and repair of air filter pressure reducing valve

Anti-fouling and waterproof: there is a knurled screw at the bottom of the case to discharge sewage and waste water. In addition, the air filter pressure reducing valve discharges sewage once a year.

1. Pressure adjustment

When the output pressure is different from the given pressure, it can be adjusted.

The adjustment method is as follows: First open the top cover, input 0.3 ~ 1.0MPa of compressed air, loosen the adjustment screw, you can change the output pressure. If you adjust clockwise, increase the pressure and reduce the pressure counterclockwise. When the output pressure gauge of the conditioner is 0.14MPa, the cover can be covered.

2. Clean the filter element

Filters should be cleaned at least once a year. DPC Taiwan reminds you that the pressure reducing valve needs to be removed from the pipe before cleaning. When cleaning, please use gasoline or carbon tetrachloride to clean, and then blow with compressed air. When completely dry, put it back in.

For you to introduce the air filter pressure reducing valve maintenance and function

Air filter pressure reducing valve function

The air filter pressure reducing valve is a smart valve that can regulate the pressure of the controller and the pipeline through its own energy. Because the pressure in the natural gas pipeline generally changes with the pressure and flow rate in the system. Therefore, after the internal pressure setting, the air filter pressure reducing valve keeps the pressure in the gas pipeline within a safe and stable range, and then adjusts the gas setting value to achieve the role of decompression stability.

The air filter pressure reducing valve can control the fixed outlet pressure of the main valve, so the outlet pressure of the main valve will not change due to the change of the inlet and outlet pressure, and the outlet pressure will not change due to the change of the outlet pressure. Changes in the amount of gas in and out.

Air filter pressure reducing valve is pilot operated pressure reducing valve. When the pressure generated by the reducing valve is too high, the spring will directly reduce the pressure. However, if the spring is too large, the range of the output pressure will be too large. Therefore, the air filter pressure reducing valve equipment has an auxiliary small direct pressure reducing valve to make up for the defects of the air filter pressure reducing valve.

The air filter pressure reducing valve is mainly composed of a main valve and a pilot valve. Through the interaction of these two parts, the spring pressure can be adjusted, and then the function of air pressure drop and pressure stability can be completed. Air filter pressure reducing valves are mainly used in gas pipelines to control the output and circulation of air, oxygen, hydrogen, liquefied gas, natural gas and other gases.