The main function of a gas pressure reducing valve is to reduce high-pressure gas to the desired low-pressure level and maintain stable pressure. Specifically, the gas pressure reducing valve controls the pressure and flow rate of the gas by adjusting the opening and closing components inside the valve body, ensuring that the pressure and flow rate of the output gas remain stable and unchanged.
Working principle of pressure reducing valve
The working principle of a pressure reducing valve usually includes the following steps:
Pressure sensing: The built-in pressure sensing element will sense the pressure inside the gas cylinder. When the pressure inside the gas cylinder exceeds the set value, the pressure sensing element will be activated, thereby starting the operation of the pressure reducing valve.
Pressure regulation: The pressure reducing valve reduces the pressure inside the gas cylinder by adjusting the movement of the valve piston, allowing high-pressure gas to enter the low-pressure chamber after throttling and pass through the outlet to use system 3.
Classification and Applicable Scenarios of Pressure Reducing Valves
Pressure reducing valves can be classified into the following categories based on their output pressure and flow rate:
Low pressure valve: a valve with a nominal pressure PN less than 1.6 MPa, suitable for applications with low flow rates.
Medium pressure valve: A valve with a nominal pressure PN of 2.5-6.4 MPa, suitable for medium flow applications.
High pressure valve: A valve with a nominal pressure PN of 10.0~80.0MPa, suitable for high-pressure flow applications.
The application of pressure reducing valves in industry, laboratories, and households
Pressure reducing valves are widely used in industrial, laboratory, and household settings. In industry, pressure reducing valves are used to control the pressure of pneumatic equipment to ensure its normal operation; In the laboratory, used to provide stable gas pressure for experiments; In households, it is used for gas stoves and other equipment to ensure safe use of gas.
