The pressure relief valve YSF16-55/130KKJ is an important safety device mainly used in oil immersed power transformers, power capacitors, reactors and other power equipment. It is also suitable for the safe release of on load switch oil tanks when the pressure exceeds the specified value.

When internal faults occur in oil immersed power equipment, the pressure inside the fuel tank will rapidly increase. If not handled in a timely manner, it may cause the fuel tank to deform or burst. The pressure relief valve can quickly open when the fuel tank pressure reaches the preset opening pressure, timely relieving the pressure inside the fuel tank and ensuring fuel tank safety. When the pressure drops to the set closing pressure value, the valve will automatically close, maintaining a positive pressure inside the tank to prevent external air, moisture, and other impurities from entering the tank.

The working principle of the pressure relief valve YSF16-55/130KKJ is based on physical mechanisms. Under normal operating conditions, the pressure inside the fuel tank remains below the opening pressure of the valve, therefore the valve remains closed. The oil in the tank can freely flow in and out to maintain pressure balance in the system. However, when there is a malfunction inside the fuel tank, such as overheating or short circuit, it may cause a sharp increase in pressure inside the tank. When the pressure exceeds the opening pressure value of the valve, the valve will be pushed open, and the overpressure oil inside the tank will quickly flow out through the valve, thereby reducing the pressure inside the tank. This process will continue until the pressure inside the fuel tank drops to the closing pressure value of the valve. At this time, valve YSF16-55/130KKJ will automatically close without external force, and the interior of the fuel tank will remain at a safe pressure level.

The pressure relief valve YSF16-55/130KKJ has the following characteristics:

1. 1. Quick response: When the pressure inside the fuel tank is abnormal, the valve can quickly open, timely relieve the pressure inside the fuel tank, and ensure the safety of the fuel tank and internal equipment.
2. 2. Automatic reset: After releasing pressure, the valve needs to be manually or automatically reset. After resetting, the valve returns to its initial state and is ready for the next pressure release operation.
3. 3. Directional injection: Some pressure relief valves have directional injection function, which means that when the valve opens, the oil can be directed to a specific direction or container to reduce damage to equipment and environmental pollution caused by the oil.

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