Gas pressure reducing valvesProduct Overview:
Gas pressure reducing valve is a kind of piston type gas pressure reducing valve that sets the outlet pressure by adjusting the spring force, uses the diaphragm to sense the change of outlet pressure, and drives the piston to adjust the size of the flow area of the throttle part of the main valve through the opening and closing of the pilot valve, so as to realize the function of pressure reduction and stabilization, and is suitable for the pilot piston gas pressure reducing valve for gas pipelines such as air, nitrogen, oxygen, hydrogen, liquefied gas or natural gas. The valve is composed of the main valve and the pilot valve, and the lower part of the main valve body has the lower valve cover, the main valve spring, the main valve disc, the main valve disc is supported by the main valve spring, so that the main valve is in a sealed state, and the upper part of the main valve body has a piston cylinder liner and the like, when the piston is subjected to medium pressure, the main valve disc is pushed by the cylinder liner guide, so that the valve is opened. This main valve body is respectively provided with the left and right flow channels that communicate with medium inlet and outlet, and is communicated with the pilot valve that adopts the middle joint and is fixedly connected to the valve cover upper part by the air pipe, there is pilot valve spring pilot valve disc diaphragm etc. in the pilot valve body, the pilot valve spring supports the pilot valve disc, the pilot valve is in a sealed state, and there is the adjusting spring adjusting bolt in the pilot valve upper cover, and is convenient for adjusting the required working pressure. Gas pressure reducing valvesHow it works
The gas pressure reducing valve reduces the higher pressure of the pipeline in front of the valve to a certain required outlet pressure through the throttling of the opening and closing parts, so that the pressure behind the valve automatically meets the predetermined requirements, and in the case of changing flow and inlet pressure, the outlet pressure is kept at the set value to meet the needs of the working conditions"a"The channel enters the pilot valve cavity"s"The piston is pushed by the medium pressure to open the main valve disc and the medium flows to the back of the valve, and at the same time by"b"The channel enters the lower cavity of the diaphragm, when the pressure behind the valve exceeds the set pressure, the diaphragm compresses the adjusting spring, the pilot valve gradually closes, the medium flowing into the upper part of the piston is reduced, the piston rises so that the main valve disc is gradually closed under the action of the main valve spring, the medium of the A cavity flows to the B cavity less, the pressure behind the valve drops, and the slight change of the pressure after the valve affects the balance of the diaphragm and the adjusting spring, so that the diaphragm moves up and down, and the pilot valve and the piston work, so that the main valve moves up and down to control the flow of the medium, so the pressure behind the valve remains stable. Gas pressure reducing valvesTechnical Specifications:
Gas pressure reducing valvesPart Material:
Gas pressure reducing valvesOutline and structure drawing:
Gas pressure reducing valvesForm factorSize Chart:
Gas pressure reducing valvesOrdering parameters and precautions:
Dear clients! If you need to order our gas pressure reducing valve products, please explain the inlet pressure, outlet pressure, nominal diameter, valve body material, accessory requirements, etc. According to the different medium temperature, this product has PTFE rubber and hard seal two kinds of options, please contact our sales technician for specific details.