Main functions of safety valve

The main function of the safety valve is to control the pressure of the hydraulic system.

First, the working principle of the safety valve

1, opening pressure of safety valve

The opening pressure of safety valve depends on its internal structure and setting. When the pressure of the hydraulic system exceeds the opening pressure of the overflow valve, the overflow valve will open, discharge excess hydraulic oil and reduce the system pressure.

2. Closing pressure of overflow valve

When the pressure of the hydraulic system drops to the closing pressure of the overflow valve, the overflow valve will close and stop oil discharge. The system pressure will gradually increase until it exceeds the opening pressure again, and the overflow valve will open again.

Second, the content of the main function of the safety valve

1, protect the hydraulic system

Overflow valve can prevent the hydraulic system from being overloaded and the internal components of the system from being damaged. When the system pressure is too high, the overflow valve will open in time to discharge excess hydraulic oil and reduce the system pressure.

2, adjust the system pressure

By adjusting the opening pressure of the safety valve, the pressure of the hydraulic system can be accurately controlled. Under different working conditions, the opening pressure of the relief valve can be adjusted as needed to meet the needs of the system.

3. Stabilize the system pressure

Overflow valve can stabilize the pressure of hydraulic system and avoid excessive pressure fluctuation. In the process of continuous operation, the relief valve can adjust the oil discharge in time according to the change of system pressure to ensure the stability of system pressure within the set range.

Application scenario of safety valve

1, construction machinery

In construction machinery, relief valves are widely used in hydraulic systems. The relief valve is installed in the hydraulic system of excavators, cranes and other equipment to control the pressure and flow of the system.

2. Shipbuilding industry

In the shipbuilding industry, due to the complexity and particularity of hydraulic system, safety valves are also widely used. The relief valve is installed in the hydraulic system of ship steering gear, cargo winch and other equipment to ensure the stability and reliability of the system.

3. Metallurgical industry

In metallurgical industry, because of the particularity of hydraulic system and the influence of high temperature environment, relief valve has been widely used. Overflow valves are installed in blast furnace air supply device, converter tilting device, rolling mill transmission device and other equipment to ensure the stability and reliability of the system. All kinds of hydraulic components and systems used in metallurgical industry need relief valves.