A, the basic properties of the oxygen pressure reducing valve ( 1) Provision it refers to the oxygen pressure reducing valve output pressure P2 adjustable range, meet the precision within the scope of this requirement. Regulating scope mainly related to pressure regulating spring stiffness. ( 2) Pressure characteristics of fixed value, it refers to the flow of g caused by input pressure fluctuation characteristics of the output pressure fluctuations. 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 - Constant value was basically not changes over the input pressure. ( 3) Flow characteristic it refers to the input pressure - Timing, the output pressure changes along with the change of output flow g resistance. G when the flow changes, the output pressure changes as small as possible. Generally the lower the output pressure, which fluctuates according to the change of output flow. Second, the role of oxygen pressure reducing valve is the action principle of oxygen pressure reducing valve by valve port on the local resistance to reduce the pressure of the gas within the scope of the pressure drop of thin film by connecting disc or on either side of the piston in and out of the gas pressure differential automatic adjustment. Oxygen pressure reducing Industrial Valves of each leg spring applies only within a certain range of outlet pressure, beyond the scope of a spring should be replaced. For operation, adjustment and maintenance convenience, oxygen pressure reducing valve should be installed in horizontal pipe runs in general.
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