gas pressure reducing valve is a pressure reducing valve. Mainly used for various gas decompression, air pressure, gas pressure, gas pressure, nitrogen pressure, oxygen decompression. Gas pressure reducing valve is generally used in room temperature medium. According to the structure can be divided into the pilot valve and direct acting pressure reducing valve. Pilot valve is made up of pilot valve and main valve. One of the pilot valve regulating spring. By adjusting the rotation of the screw, can change the gas reducing valve outlet pressure. Direct effect on the pressure reducing valve by in the spring turn the adjusting screw change regulate the amount of compression spring, and then change the outlet pressure reducing valve. The working principle of gas pressure reducing valve 1. When the output pressure is lower than the set value, piston underside of the force is greater than the above force, the piston moving up, cover up on, regulating valve mouth, from the pressure regulating valve mouth into the output cavity compressed air flow increases, the output cavity pressure. When output cavity pressure reached set value, force balance piston upside down, and the piston stop upward movement, the pressure regulating valve opening remain the same. Exports of compressed air pressure and flow rate remained stable. 2. When the output pressure is greater than the set pressure, piston under the force is greater than the upper side of the force, the cover and the piston moves down together, so as to reduce the pressure regulating valve mouth opening, reducing output into the cavity of the gas flow through the pressure regulating valve port, thus reducing the output cavity gas pressure. If the output cavity is still higher than the set value, the pressure of the piston to move down, until the pressure regulating valve fully closed mouth. Spring force is no longer at this point, the cover by, acting on the piston valve core and valve cover at the bottom of the rubber gasket tightly pressure port on the control valve, and the path of the separation between the input cavity and output cavity. At this point, if the output pressure is equal to the set pressure value, the piston will stop moving. At this point, when the pressure regulating valve and relief valve closed at the same time, set the pressure for the outlet pressure, the valve is in static equilibrium. 3. If the output pressure is higher than the set pressure value, the piston to move down, on the end face of valve core and valve cover at the bottom of the separation of output cavity connected with the overflow cavity, output cavity in the gas exhausted from port through the relief valve. With the decrease of the output cavity pressure, piston bottom pressure is greater than the pressure of the upper, makes the piston and the valve core moving up along the axis, and gradually close the overflow valve mouth opening. When the output pressure reached set value, the overflow valve mouth completely installed at the bottom of the valve cover, and isolated the passage between the output cavity and the overflow cavity, and stop the overflow. At this point, the overflow valve and pressure regulating valve closed at the same time, the valve is in static equilibrium state and stop the flow of gas. Due to the pressure on both sides of the valve cover up and down in a state of equilibrium, whatever inlet pressure fluctuations, will not affect valve pressure balance, so as to ensure the outlet pressure always remained stable in value, so that the valve has good pressure characteristics. The basic properties of the gas pressure reducing valve 1. Voltage regulation range pressure regulation refers to the pressure reducing valve output pressure P2 adjustable control range, the precision of the requirements specified in this scope. Regulating scope mainly related to pressure regulating spring stiffness. 2. Pressure characteristics: feature refers to when the flow rate g is a fixed value, the input output pressure fluctuation characteristics of pressure fluctuations caused. The smaller the output pressure fluctuation, the characteristics of the pressure reducing valve, the better. The output pressure must be less than the input pressure value, make its basic does not change with the input pressure. 3. Traffic characteristics: flow characteristic is refers to the input pressure time continuity, output pressure changes over the output flow rate of g, g when the flow changes, the output pressure changes as small as possible. The lower the output pressure, the smaller the output flow fluctuation. The structure characteristics and application of gas pressure reducing valve 1. Gas pressure reducing valve is the forerunner of piston reducing valve. It consists of the main valve and pilot valve. The main valve is mainly composed of the seat, disc, piston, spring and other parts. The pilot valve is mainly composed of the seat, disc, diaphragm, spring, adjusting spring and other parts. Gas pressure reducing valve by adjusting the spring pressure to set the outlet pressure, the diaphragm is used to sense the change of the outlet pressure, driven by the piston in and out of the pilot valve regulating the flow of the main valve throttle valve parts, so as to realize decompression and voltage stabilizing function. 2. Gas pressure reducing valve is mainly used in gas pipeline, such as air pressure reducing valve, nitrogen hydrogen oxygen pressure reducing valve, pressure reducing valve, pressure reducing valve, liquefied gas pressure reducing valve, gas pressure reducing valve, etc.

Whether it's automation or artificial intelligence, the rapid convergence of technology and business often determines ductile iron gate valve’s competitiveness.
If you are ready to stop the problem of resilient seated valve and go back to normal, contact us at Mech Valve. Shenzhen Mech Valve Trading Co., Ltd. is ready to help you out.
Shenzhen Mech Valve Trading Co., Ltd. has developed a unique technology with many applications including resilient valve.