Gas pressure relief valve profile (Figure)

Gas pressure relief valve Description: Gas pressure relief valve is characterized by changes in the pressure of imports under the circumstances, to maintain the exit to listen to pressure and temperature values ​​in a certain range. Pressure reducing valve is an essential part of the pneumatic control valve, the main role is to depressurize the pressure of the gas source and stabilized to a fixed value, so that the control valve can be a stable source of air power for regulation and control. This type of valve in the pipeline should be generally horizontal installation. The gas valve belongs to the pilot piston valve. The main valve and pilot valve composed of two parts. The main valve from the valve seat, the main valve disk, piston, spring and other components. Pilot valve mainly by the valve seat, disc, diaphragm, spring, adjusting spring and other components. By adjusting the spring pressure to set the outlet pressure, the use of diaphragm sensing outlet pressure changes, through the pilot valve opening and closing drive piston to adjust the size of the main valve throttle flow area, to achieve decompression regulator function. Gas valve is mainly used for gas lines, such as air, nitrogen, oxygen, hydrogen, liquefied gas, natural gas and other gases. According to the structure of gas valve can be divided into film, spring film, piston, lever and bellows; according to the number of seats can be single-seat and two-seat; according to the location of the valve can be divided into Positive and negative.

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