Backflow Preventers

• 

ZECO Valve Group is established in 1991, as an experienced china valve manufacturer. We have 5 factories in China, which are located in Shanghai, Yancheng and Wenzhou, which mainly manufacture pressure reducing valve, pressure relief valve, balancing valve, PICV, water valveand industrial valves.

Festures of Backflow Preventers

lThe double check valve is designed as a whole, with small structure；

lBody is streamlined with little resistance loss；

lCombination of a double check valve and safety drain valve can completely prevent backflow pollution under any working condition；

lAll moving parts are made of non-rust and wear-resistant materials with long service life.

As one of the backflow preventer suppliers, ZECOoffers many high quality produxts, such as 2.5 inch backflow preventer, 4 double check backflow preventer, 6 rpz backflow preventerand so on. Backflow preventers for two check valve series, when one of the seal damage, the other also ACTS as a seal to prevent backflow. However, when the sealing of two check valves is broken at the same time, the check function is lost. Backflow preventers on the common type of foundation in the middle of the drain, so even if two check valve sealing at the same time damage, it can also play a role in preventing backflow pollution.

This double backflow valvemust be installed horizontally, the environment of the installation site should be clean, there should be sufficient maintenance space, the main degree of safety drain or (air barrier) outlet is more than 300mm above the ground, and 3 inch backflow valveshould not be flooded by water or debris, and the installation area should be equipped with drainage facilities. If you don’t know where to buy backflow preventer, please consult ZECO Valve Group.

Backflow Preventers Material and Standard

Size Range: 2"~12"Pressure Rating: 10bar ~ 25barFace to Face Dimensions: AMSE B16.10, EN558-1Flange End Dimension: AMSE B16.1/16.42, AS4087, EN1092-2Coating: Fusion Bonded Epoxy CoatingInspection and Test: ISO 5208 / EN 12226-2

Другие товары поставщика

	56 Inch Ball Valve	Description of 56 Inch Ball Valve: The largest size stainless steel ball valve Chinaproduced by ZECO is 56 inch, and it has its own mold, which ca...
	Pneumatic Ball Valve	As one of the leadingchina ball valve suppliers, ZECO Valve Group developed our own laboratory for research &development for international stan...
	Adjustable Dynamic Flow Balancing Valve	Basic information Adjustable dynamic flow balancingvalve can manually adjust the set flow rate in the pipeline, and also can automatically maintain...
	Differential Pressure Control Valve	Festures of dpcv valve Accurate and stable pressure difference control； 20-250Kpa Pressure difference control range; Simple debugging, without c...
	Double Offset Butterfly Valve	Double offset butterfly valve manufacturersare further improved on the basis of single eccentric butterfly valves and are widely used. Its structur...

Похожие товары

	High Effciency Water Cooling Four-Impeller Paddle Wheel Aerator	Продавец: Taizhou Jinhu Mechanical & Electrical Co., Ltd.	Taizhou Jinhu Mechanical & Electrical Co., Ltd. provides aeration equipment designed to suppo...
	High quality FT wax used in PVC processing	Продавец: Syntop chemical Co.,Ltd.	Fischer-Tropsch wax can be used in plastics processing, such as injection molding, extrusion, and...
	car scent diffusers wholesale	Продавец: 869319	car scent diffusers wholesale Our deliver a refreshing, pleasant scent for vehicles of all t...
	aroma car diffuser	Продавец: 869319	aroma car diffuser 360° Patented Leak-Resistant Design Engineered to help prevent oil l...
	Wall-Mounted Scent Diffuser	Продавец: 869319	Wall-Mounted Scent Diffuser Patented Cold-Air Atomization Technology Delivers fast and effi...