I. Performance of
Special Material Valve (1) Pressure regulation range
It refers to the adjustable range of the output pressure P2 of the Special Material Valve, within which the specified accuracy is required. The pressure regulation range is mainly related to the stiffness of the pressure regulating spring.
(2) Pressure characteristics
It refers to the characteristics of the output pressure fluctuation caused by the input pressure fluctuation when the flow g is a fixed value. The smaller the output pressure fluctuation, the better the characteristics of the
Pressure Reducing Valve. The output pressure must be lower than the input pressure-fixed value to basically not change with the input pressure.
(3) Flow characteristics
It refers to the stability of the output pressure changing with the output flow g when the input pressure is fixed. When the flow g changes, the smaller the change in output pressure, the better. Generally, the lower the output pressure, the smaller its fluctuation with the change in output flow.
II. Function of Special Material Valve
The working principle of Special Material Valve is to reduce the gas pressure by the local resistance of the flow channel inside the valve to the gas. The range of gas pressure drop is automatically adjusted by the pressure difference between the inlet and outlet gas on both sides of the film or piston connected to the valve disc. Each spring of the Special Material Valve is only applicable within a certain range of outlet pressure. If the range is exceeded, the spring should be replaced. For the convenience of operation, adjustment and maintenance, valves made of special materials should generally be installed on horizontal pipes.
