Pressure Sustaining Valve
Pressure sustaining valve is utilized in the pipeline for users, It primarily matches up with the minimum working pressure inside the tap water pipe and maintains minimum standard working pressure at any point inside the pipeline during peacetime and emergency.
Pressure Relief Valve
Pressure Relief Valve is mainly for sustaining safe water supply pressure in the pipe. When water pump stops functioning of pipeline gate suddenly close, abnormal pressure forms inside the pipe. As the pressure gets over a certain safety limit, pressure relief valve can open automatically and releases the water pressure above the safety limit, so as to ensure the safety of pipeline and equipment, When the pressure turn back within the safety limit, the pressure relief valve will close slowly.
Water Hammer Arrester
When the water approached full water level, float valve will switch between open and close state due to fluctuation of floating ball, which means water hammer effect is generated (vibration and noise) This phenomenon can be prevented by using a water hammer arrester.
When using float valve. in order to save pool space and for easy maintenance, the valve should be placed outside the pool, with the float ball switch placing at the lowest point in pipeline , consequently impurities deposit and cause to malfunction. It's reconmmended that a filter should be installed to prevent pipe blocking.
The relay pressure reducing valve installed in the inlet of relay pump is to adjust the flow rate and pressure entering the pump to avoid over high pressure when pump is applied in series connection.
Fire protection piping system is a high pressure sustaining system, Valves above 16 kgf/cm2 are recommended.
When fire protection pump switches on automatically, pressure will increase and pump will be over-loaded due to small flow rate from users and it will make pump's temperature go up. To maintain the pipeline pressure, installing pressure relief valve can automatically release the over high pressure.
While installing pressure sustaining (relief) valve in fire protection pressure sustaining system, it should be installed under check valve to prevent the drop of pressure inside pipe caused by over released pressure from water hammer effect when pump switches off.
Fire protection piping system required high pressure sustaining silent check valve to prevent the pressure loss and automatic switch on of pump caused by leakage of silent check valve.
Pressure sustaining valve is utilized when installing pipes for users. It primarily matches up with the minium working pressure inside the tap water pipe, balancing up-stream and down-stream pressure during normalcy and emergency, and maintains constant pressure inside the pipe.
Application fo Silent Safety Valve
Open Discharge System of Safety Valve
Pressure relief valve should be installed under check valve in fire protection or pressure sustaining systems. It is to prevent pressure drop inside the pipe caused by water hammer effect when pump shuts down.
Straight Pattern online Safety Valve for Fire Fighting System
Chlorine evaporators are commonly used in water treatment systems, including the treatment of public drinking water and sewage. The PRV must be installed downstream of a filter and downstream of liquid traps (drip legs).