Backflow Preventers(Low Pressure)

Basic informationThis valve can strictly prevent the occurrence of backflow pollution, is a safe device to ensure the hygiene of drinking water.

Features1. More superior streamline design, energy - saving effect；2. Discharge control device and outlet are designed without obstacles to reduce fluid resistance；3. More sensitive check effect, low opening pressure；4. The top is provided with a lifting ring for easy installation.Principle

When the inlet pressure is lower than the outlet pressure, the valve closes and the drain valve opens automatically, and it is always in the open state. The middle chamber is the same as the atmosphere, realizing air partition, and the partition performance is safe and reliable. When the water supply stops, the sealing force of the first and second

check valvedisc will increase automatically, effectively improving the sealing reliability.Installation and CommissioningButterfly orgate valvesshould be installed on both sides of the . Filters should be installed at the inlet and expansion or soft joint should be installed at the outlet. The discharge outlet of the drainer shall be additionally installed with the outlet pipe, which shall be downward directed to a place greater than or equal to 100mm above the intake port of the collector well. No valves shall be allowed in the middle. For specific use, please consult ZhengFeng Valve Group.

Other supplier products

	Forged Stell Check Valve	ZECO specializes in producing forged steel check valves for nearly 30 years. The forged steel check valves include forged steel swing check valves ...
	Single Orifice Air Release Valve	Features of single orifice air release valve Can be a large amount of exhaust, improve water efficiency pump Can be a small amount of exhaust...
	Stainless Steel Gate Valve	Categories: Gate Valve, Gate Valve By Material Tag: OS&Y Valve Description ZECO Valve supplies china stainless steel gate valves in the versio...
	Gate Valve	ZECO is one of the professional gate valve manufacturers, specializing in the production of wedge gate valve and through conduit gate valve product...
	Bronze Flow Balancing Valve	Festures of BronzeBalancing Valve Good sealing, no penetration, easy to adjust the rotation; Small mounting space, accurate and clear opening ind...

供应产品

Same products

	阀	卖方: 荣腾鑫诺（天津）国际贸易有限公司	液压阀
	Class 300 Valve	卖方: GangYe Group Co.,Ltd.	Class 300 valves have a pressure rating of 300 pounds per square inch (psi) or 20.7 bar, allowing...
	Class 3000 Industrial Valve	卖方: GangYe Group Co.,Ltd.	Wafer Body, Full Port Design, Flanged End Class 3000 Ball Valve. A ball valve class 3000pressure-...
	Class 2500 Industrial Valve	卖方: GangYe Group Co.,Ltd.	Class 2500 valves can be used for both on-off and throttling applications. The specific valve typ...
	Class 150 Valve	卖方: GangYe Group Co.,Ltd.	globe valve class 150is a pressure rating designation defined by standards organizations, such as...