German Festo FESTO pressure reducing valve * supply

The working principle of the German Festo FESTO pressure reducing valve is based on two basic equilibrium points, using the force of a spring to apply downward pressure to open the piston, and closing the piston through the upward action of a diaphragm.

The specific process is as follows: Rotate the adjusting screw clockwise to adjust the force on the spring and press the diaphragm downwards. The connected valve core and chassis move downwards, forming a passage above the valve core and chassis. The air source pressure is output through the outlet. When the outlet pressure rises to the set pressure, it is transmitted to the bottom of the diaphragm through the outlet pressure sensing hole, and balanced with the spring pressure to maintain the set pressure. When the outlet pressure is greater than the set pressure, it is transmitted to the bottom of the diaphragm through the outlet pressure sensing hole, and the hole between the diaphragm and the chassis opens. The outlet pressure is transmitted to the spring chamber through this hole and discharged to the atmosphere to maintain the set pressure

The characteristics of the German Festo FESTO pressure reducing valve include 2:

Pressure regulation range: It refers to the adjustable range of the output pressure P2 of the pressure reducing valve, within which the specified accuracy is required. The range of pressure regulation is mainly related to the stiffness of the pressure regulating spring.

Pressure characteristic: It refers to the characteristic of output pressure fluctuation caused by input pressure fluctuation when the flow rate g is constant. 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 - a constant value in order to remain largely unchanged with changes in input pressure.

Traffic characteristics: It refers to the transmission

The function of Festo FESTO pressure reducing valve in Germany:

Control function: The operation of the Festo FESTO pressure reducing valve is controlled by the pressure behind the valve. When the pressure sensor detects an increase in valve pressure indication, the opening of the pressure reducing valve decreases; When the pressure decreases after detecting the pressure reducing valve, the opening of the pressure reducing valve increases to meet the control requirements.

Adjustment function: The principle of FESTO solenoid valve is the anti adjustment inside the valve body. When the inlet pressure increases, it automatically reduces the diameter and decreases the change in flow rate, and vice versa.

Balancing function: Balancing valves belong to the category of regulating valves, and their working principle is to change the clearance (i.e. opening) between the valve core and the valve seat, thereby changing the flow resistance of the fluid passing through the valve and achieving the purpose of regulating the flow rate.

In summary, the German Festo FESTO pressure reducing valve has various characteristics and functions such as pressure regulation, stabilization, and flow control.

The use and maintenance of Festo FESTO pressure reducing valves in Germany include the following aspects:

Understanding the working principle of a pressure reducing valve: A pressure reducing valve adjusts the flow rate of the medium by adjusting the opening and closing of the valve body's opening and closing components, reducing the pressure of the medium. With the help of the pressure behind the valve, the opening of the opening and closing components is adjusted to maintain the pressure behind the valve within a certain range.

Master the basic performance of pressure reducing valves: The performance of pressure reducing valves includes pressure regulation range, pressure characteristics, and flow characteristics. The pressure regulating range refers to the adjustable range of the output pressure P2 of the pressure reducing valve, within which the specified accuracy is required. The pressure characteristic refers to the characteristic of output pressure fluctuation caused by input pressure fluctuation when the flow rate g is constant. Flow characteristics refer to the persistence of input pressure timing and output pressure changing with the variation of output flow rate g.

Proper installation of pressure reducing valve: When installing a pressure reducing valve, the following points should be noted:

Ensure that the inlet and outlet of the pressure reducing valve are correctly connected to avoid reverse connection.

The installation location should be easy to operate and maintain.

For combination pressure reducing valves, it is necessary to ensure that they can provide stable and reliable low-pressure cooling water.

Regular maintenance of pressure reducing valve: In order to ensure the normal operation of the pressure reducing valve, regular maintenance is required, including:

Clean the dirt inside the valve body to prevent blockage.

Check if the seals are intact and replace them promptly if damaged.

Check if the spring is deformed or damaged, and replace it if necessary.

Regularly check the performance indicators of the pressure reducing valve to ensure that it is within the specified range.

Fault diagnosis and troubleshooting: When the pressure reducing valve malfunctions, diagnosis should be carried out based on the fault symptoms, and corresponding troubleshooting measures should be taken. For example, if the outlet pressure does not increase, it may be due to reverse connection of the inlet and outlet, or low inlet pressure.

By following the above steps, it is possible to effectively use and maintain the German Festo FESTO pressure reducing valve, ensuring its long-term stable operation.