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700X Water Pump Control Valve
Product overview
700X Water pump control valve, is a check valve which installed on pump outlet of high rise construction and other water supply system, avoid fluid backwards.Before water pump will stop supply water, valve close around 90% slowly, to avoid happen counter weight and water hammer noise when pump stop suddenly; after water pump stopped, then valve fully closed, avoid pumping water backwards, so that effective pretect the water pump don't reverse by backwards fluid impacted. This product is a necessary pretect device for water pump outlet. Valve is streamline design, use solenoid valve's pilot control achieve accurate open/close, use safety, effectively avoid counter weight and water hammer noise, long life span, easy installation and maintenance.
Product Features
When the working valve of the water pump supplies water to the downstream, the solenoid pilot valve is fully opened, and the needle valve is adjusted to the appropriate opening. The upstream water enters the main valve control room through the needle valve and one-way valve, and flows out through the electromagnetic pilot valve. At this time, the pressure in the main valve control room keeps the main valve at the appropriate opening to maintain the normal downstream water supply. When the water pump stops working, the solenoid valve is closed first, the main valve control room stops drainage, the control room pressure rises, and the main valve begins to close. When it is closed to 90%, the upper travel switch of the main valve outputs the pump stop signal and the water pump stops running. At this time, the downstream backwater enters the main valve control room through the one-way valve, and the pressure in the control room rises, and the main valve is closed.
Execution Standard
Face to Face：GB/T12221-2005
Flange end：GB/T9113
Pressure-temp：GB/T12224-2005
Test & check：GB/T13927-2008
Performance Parameter
Nominal diameter：DN50~800mm
Nominal Pressure：PN1.0～1.6MPa
Applicable media：Water, oil, sea water, sewage
Applicable temperature：0≤80℃
Main materials：WCB
