500X pressure relief / hold pressure valve consists of main valve and external control pilot valve. The 500X pressure relief / hold pressure valve is mainly installed in the bypass of the protected water supply system of the building to ensure the pressure in the water supply area upstream of the main valve. When the pressure in the water supply pipe exceeds the pressure set by the 500X pressure relief / hold pressure valve, the 500X pressure relief The pressure / holding valve is opened to prevent pipelines and equipment from being damaged by overpressure. 500X pressure relief / hold pressure valve is mainly used for pressure relief of high-rise building fire test cycle system, and it is an upgraded product of spring-loaded safety valve.
Performance characteristics of water control valve:
◆ New and reasonable structure, reasonable use of hydraulic theory of control theory ◆ High sensitivity, safe pressure relief ◆ Quick opening and closing of valve flaps, no water hammer impact ◆ Smooth operation and no noise ◆ Long service life Structure size:
|L (mm)||H (mm)||H (mm)||(KG)|
◆ A filter must be installed before the 500X pressure relief / holding valve.
◆ When adjusting, the screw on the pilot valve should be withdrawn, start the pump to let the water drain from the pressure relief valve, and gradually screw in the adjusting screw to gradually increase the pressure. Until the desired pressure is set. After setting, tighten the lock nut.
Possible faults and troubleshooting methods:
|cause of issue||Method of exclusion|
|No pressure release or unstable pressure release|
|Not holding pressure|
|There is abnormal sound|
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