Performance Of Pressure Relief Valve

(1) Pressure regulation range: It refers to the adjustable range of pressure P2 output of pressure relief valve, in which the required accuracy is achieved. The range of pressure regulation is mainly related to the stiffness of pressure regulation spring.

(2) Pressure characteristic: It refers to the characteristic of output pressure fluctuation caused by input pressure fluctuation when flow G is fixed value. The smaller the fluctuation of output pressure, the better the characteristics of pressure relief valve. The output pressure must be lower than the input pressure - the fixed value does not change with the input pressure.

(3) Flow characteristics: It refers to the sustainability of input pressure-timing and output pressure changing with the change of output flow G. When the flow rate G changes, the smaller the change of output pressure is, the better. Generally, the lower the output pressure is, the smaller the fluctuation is with the change of the output flow rate.

It can reduce the high liquid pressure in the front line of the valve to the level required in the back line of the valve. The transmission medium here is mainly water. Pressure relief valves are widely used in high-rise buildings, urban water supply network areas with high water pressure, mines and other occasions to ensure that the water points in the water supply system to obtain appropriate service water pressure and flow. In view of the fact that the leakage rate and waste degree of water are almost proportional to the water pressure of the water supply system, the pressure relief valve can improve the operation condition of the system and potentially save water. According to statistics, its water saving effect is about 30%.