Backflow Preventers

• 
• 

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 thegate valve, the water began to flow out because the discharge point was downstream of the tank car and there was no water backflow preventer installed, 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 backflow preventer valve.

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.

Our company has backflow preventer for sale!

ZECOis one of the most professionalchina check valve manufacturers, and we have been devoted to produce china control valvefor many years. If you want to know more details or want a quotation, just feel free to contact us!

Другие товары поставщика

	Backflow Preventers(Low Pressure)	ZECO Valve Group, founded in 1991 with focus on manufacturing china water valve, including control valves, balancing valves, gate valve, butterfly ...
	Motorized Butterfly Valve	As one of the leadingchina ball valve suppliers, ZECO Valve Group developed our own laboratory for research &development for international stan...
	Electric Butterfly Valve	Categories: Butterfly Valve, Butterfly Valve By Drive Mode, Triple Offset Butterfly Valve Tags: Motorised Valve, Motorized Valve Description B...
	Forged Steel Valve	Forged Valve ZECO forged valve refers to the blank of valve, which is a forging piece with certain mechanical properties, shape and size produced b...
	Check Valve	The check valve for water of ZhengFeng is the advanced pipe control equipment at home and abroad, mainly installed at the entrance of hydropower st...

Похожие товары

	Corrosion-Resistant Pneumatic Insulated Ball Valve	Продавец: 869388	Zhejiang Wisley Automatic Valve Co., Ltd. specializes in manufacturing pneumatic valves and indus...
	Precision Valve Manufacturing for Energy Infrastructure	Продавец: Zhejiang Naishi Valve Co.	The Forged Steel Trunnion Mounted Ball Valve is designed for high-pressure pipeline applications ...
	Greentech New Automatic No Cross Contamination Pneumatic Vacuum Conveyor Sugar Volumetric Rotary Feeder System Material Handling	Продавец: Greentech International (Zhangqiu) Co., Ltd	Automatic Operation: Ensures continuous and efficient sugar feeding without manual intervention...
	Greentech New Industrial Automatic Dilute Phase Pneumatic Conveying System Rotary Valve Roots Blower 220/380V Material Handling	Продавец: Greentech International (Zhangqiu) Co., Ltd	Automatic Assembly: Simplifies manual processes with precision and efficiency. Positive Pressu...
	RV-02 Pressure Relief Valve	Продавец: Greentech Industry (Jinan) Co., Ltd	RV-02A pressure relief valveAir Blower pressure relief valve is installed on the inlet &outle...