Pressure reducing valve structure and method for adjusting gas pressure
A technology of gas pressure and pressure reducing valves, which is applied in the direction of safety valves, balance valves, valve devices, etc., and can solve the problems that the outlet pressure cannot be stabilized within a certain range, the pressure adjustment process is complicated, and the time is long.
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[0015] A pressure reducing valve structure for regulating gas pressure, see figure 1 : It includes the pressure input port 2, the pressure output port 3 and the end sealing plug of the valve core body 1, the end sealing plug is located on the side of the pressure output port 3 of the valve core body 1, and the middle part of the valve core body 1 has an atmospheric communication port 5. There is a pressure balance shaft 6 inside the valve core body 1, and the inner wall of the valve core body 1 cooperates with the outer edge surface of the pressure balance shaft 6 and the inner wall of the end sealing plug respectively to form a pressure input chamber 7, an atmosphere communication chamber 8, and a pressure The output cavity 9, the three cavities are sealed and isolated by seals, the pressure input port 2, the atmospheric communication port 5, and the pressure output port 3 are respectively connected to the pressure input cavity 7, the atmospheric communication cavity 8, the pr...
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