Backflow Preventers

• 

ZECO Valve Group, founded in 1991 with focus on manufacturing china water valve, including control valves, balancing valves, gate valve, butterfly valves, check valves, and air valves. Valve sizing 1/2” to 88”, rating BS 10bar through BS 25bar, served covering buildings & construction, waterworks, fire protection and many other fields. ZECO has excellent product quality and sound managing system.

The problem of contaminated water due to backflow is emerging, and the health hazards caused by contaminated water are also alarming to engineers and water equipment suppliers. The problem of backflow water may occur in every place where water is used. We can learn about the harm caused by backflow water from the following two specific cases: A serious backflow problem occurred in Allegheny County, Pittsburgh, Pennsylvania.

A pest control company contaminated the water supply when it used the insecticide to kill termites. The company USES water from garden pipes to mix chlordane and heptachlor in tanker trucks. The end of the hose is immersed in the chemicals, while water pipes in the area are draining. When the plumber inserted the pipe into the gate valve, the water began to flow out because the discharge point was downstream of the tank car and there was no water 2.5 inch backflow preventerinstalled, which caused the siphon phenomenon, causing the chemicals to be sucked out of the tank car and into the water supply system; The drinking water of a primary school in bowling green, Kentucky, was contaminated with ethylene glycol, a chemical used in an HVAC system, due to the lack of a 10 backflow preventervalve. When the contractor pumps the drinking water into the geothermal heat pipe, a small amount of ethylene glycol flows back into the drinking water under pressure. The university then issued a notice to ensure the safety of drinking water in the future, staff in the HVAC system pipes installed double check backflow preventer.

As one of the backflow preventer suppliersand backflow preventer manufacturers, we offer many high quality products and after read this, you can know where to buy backflow preventer.

Другие товары поставщика

	Resilient Gate Valve for Underground	Basic information Thisunderground butterfly valveis used as a two-way closed circuit device. Features 2. Does not affect the traffic, and undergro...
	Backflow Preventers	ZECO Valve Group, founded in 1991 with focus on manufacturing china water valve, including control valves, balancing valves, gate valve, butterfly ...
	Butterfly Valve	ZECO is a professional rubber lined butterfly valve manufacturersin China and butterfly valve is main products series of ZECO valve. The rubber lin...
	Backflow Preventers	Basic Informationof the no slam check valveThis non slam valveprevents backflow of media and reduces water hammer to achieve the safe and quiet eff...
	Motorized Gate Valve	As one of the leadingchina ball valve suppliers, ZECO Valve Group developed our own laboratory for research &development for international stan...

Похожие товары

	China Gate valve	Продавец: Yuanda Valve Group Co.,Ltd.	China Gate valve China Gate valve A is a type of valve that uses a gate or wedge-shaped dis...
	Gate Valve Vs. Ball Valve	Продавец: Yuanda Valve Group Co.,Ltd.	Gate Valve Vs. Ball Valve Gate valves and ball valves are both types of valves that are used...
	Non Return Valve Suppliers China	Продавец: Yuanda Valve Group Co.,Ltd.	Non Return Valve Suppliers China refers to the opening and closing member for the circular v...
	Common Types Of Check Valves	Продавец: Yuanda Valve Group Co.,Ltd.	Common Types Of Check Valves A is a valve whose switching parts are disc-shaped and rely on ...
	Brass ball valve	Продавец: Yuanda Valve Group Co.,Ltd.	Brass ball valve Brass ball valve Applications: Water Supply: Commonly used in residentia...