Difference between low-lift and full-lift safety valves——HERO VALVE

Both the low-lift safety valve and the full-lift safety valve are used to ensure the safety of pressure pipes. Its opening and closing parts are normally closed under the action of external force. When the medium pressure in the equipment or pipeline rises, it will automatically open when it exceeds the specified value. The medium pressure in the pipe or equipment is prevented from exceeding the specified value by discharging the medium outside the system. Safety valves belong to the category of automatic valves, which are mainly used in boilers, pressure vessels and pipelines. The control pressure does not exceed the specified value, which plays an important role in protecting personal safety and equipment operation.

According to the opening height of the valve of the safety valve, it can be divided into a low-lift safety valve and a full-lift safety valve. The opening stroke height of the low-lift safety valve is: ≤0.05d0 (minimum discharge throat diameter); the full-lift safety valve opens The height is ≤0.25d0 (minimum discharge throat diameter).

   When the pressure in the pipeline exceeds the set safety value, the valve can only be partially unloaded when the pressure in the pipeline exceeds the set safety value, while the full lift safety valve can be fully unloaded when the pressure in the pipeline exceeds the set safety value. Dutch. Generally, the selection is based on the requirements of the pipeline use occasion. The price weight of the low-lift safety valve is usually lower than that of the full-lift safety valve.

——HERO VALVE