What should I pay attention to when using pressure reducing valve?

Release time:

2023-01-31

The application range of pressure reducing valve is very wide, we must know the precautions of using pressure reducing valve before use, so that we can better apply it. If you are interested in this topic, let's take a look and hopefully help some of the people involved.

Pressure reducing valves are widely used in various industries, so its use is certainly very wide. In fact, this pressure reducing valve is simply not insulated, which is easy to cause burns and unreasonable drainage points, resulting in poor quality water hammer and the risk of frequent leakage. Protection is to control the continuous heating caused by the loosely closed pressure reducing valve. Cannot discharge for a long time. Of course, it is also necessary to choose the type of pressure reducing valve according to the conditions of use and special requirements of the hydraulic system; Or according to the working pressure and flow of the hydraulic system, the rated pressure and flow (diameter) characteristics of the pressure reducing valve are reasonably selected; In order to determine and adjust the secondary pressure according to its use and role in the hydraulic system, attention should be paid to the relationship between the setting pressure of the actuator and the load pressure. Correctly use the connection method of the pressure reducing valve, correctly select the connector (installation bottom plate or pipeline connection), and pay attention to the tightness of the connection, the oil port of the pressure reducing valve should be correctly connected to the system, and the external oil discharge port should be directly connected back to the tank.

We remind you to pay attention to the changing trend of the opening and closing characteristics of the pressure reducing valve and the relief valve (that is, the second level) when in use. As the flow through the pressure reducing valve increases, the pressure decreases). In addition, when in use, the secondary pressure setting value of the pressure reducing valve should be higher than the external setting pressure; The secondary pressure adjustment range is determined by the pressure control spring and valve flow. The pressure ensures that the pressure difference between the primary and secondary is 0.3-1MPa. In addition, the control pressure should ensure that the difference between the primary and secondary pressure is 0.3-1MPa. Of course, it should also be noted that the amount of oil discharged is more than other regulating valves, and the oil will always flow from the pilot valve (sometimes up to 1L/min or more), affecting the selection of hydraulic pump capacity; When adjusting the pressure of the reducing valve, the correct rotation direction should be considered. For the pressure regulating mechanism, the locking nut should be tightened when adjusting the pressure; If the pressure reducing valve performs multi-stage decompression control of the system through the remote control port of the pilot pressure reducing valve, the screw plug of the remote control port should be unscrewed and the control oil should be connected. Otherwise, the remote control port should be tightly sealed; In addition to these, we also remind you that the return port of the relief valve for unloading must be directly connected to the fuel tank to reduce back pressure. When the pressure reducing valve has pressure failure or loud noise and other faults, it can be diagnosed and eliminated according to the following methods: The dismantled components should be correctly installed, and pay attention to prevent secondary pollution.

After the introduction of the above content, we have also understood the precautions for using the pressure reducing valve. Other topics will be updated next time, so be sure to check them out if you have time. Customer service is available 24 hours a day.

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