Working principle of cylinder pressure reducing valve, features of cylinder pressure reducing valve accessories

In a pneumatic system, compressed air from the same pressure source may control different actuators (cylinders), and different actuators have different pressure requirements. the same. Therefore, the pressure in each pneumatic branch is also different. This requires the use of a control component to provide different stable pressures for each branch. This component is a pressure reducing valve. Pressure reducing valve It is a pressure control valve that adjusts a higher input pressure to a specified output pressure and maintains a stable outlet side pressure.

Cylinder pressure reducing valveHow it works

The pressure regulating methods of pressure reducing valves include direct-acting and pilot-operated:

The direct-acting type is a pressure regulating method that is directly controlled by spring force. This valve can use the handle to directly adjust the pressure regulating spring to change the output pressure of the valve.

The pilot type uses pre-adjusted air pressure to replace the direct-acting pressure regulating spring for pressure regulation.

Features of cylinder pressure reducing valve accessories

The main characteristics of the pressure reducing valve include pressure regulating range, pressure characteristics, flow characteristics and relief characteristics.

① Pressure regulating range The regulating range of the output pressure of the pressure reducing valve is called the pressure regulating range. Within this pressure range, the output pressure is required to be adjusted continuously and stably without sudden jumps. The pressure regulating range mainly depends on the stiffness of the pressure regulating spring.

②The pressure characteristic refers to the impact of the input pressure fluctuation on the output of the cylinder pressure reducing valve under a certain output flow rate. Effect of pressure fluctuations. It is required that under the specified flow rate, the change of outlet pressure with the change of inlet pressure shall not be greater than 0.05MPa.

③ Traffic characteristics refer toCylinderUnder a certain input pressure of the pressure reducing valve, the impact of changes in output flow on output pressure fluctuations requires that when the output flow changes within a larger range, the change in outlet pressure becomes greater. Smaller is better.

④The overflow characteristic means that when the output pressure of the valve exceeds the set value, the overflow port opens and the air flows out from the overflow port.