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 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.
Basic information of Backflow Preventers(Low Pressure)
This valve can strictly prevent the occurrence of backflow pollution, is a safe device to ensure the hygiene of drinking water.
Features of Backflow Preventers(Low Pressure)
- ；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.
Installation and Commissioning of Backflow Preventers(Low Pressure)
Butterfly or gate valves should be installed on both sides of the low pressure backflow preventer. 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 ZECO Valve Group.
Product scope, Standards & Materials of Backflow Preventers(Low Pressure)
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 Coating Inspection and Test: ISO 5208 / EN 12226-2
Send product request
Other supplier products
 |
Pump Control Valve | Festures of pump flow control valve Slow closing effectively prevents water hammer. Stop pump stable and save energy Full port, small flui... |
 |
6 Inch Gate Valve | Description of 6 Inch Gate Valve: All casting and forged parts of ZECO 6 inch flanged gate valve, especially the body and cover two of the main pr... |
 |
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... |
 |
12″ Butterfly Valve | Categories: Butterfly Valve, Butterfly Valve By Inch Description Butterflly valve 12 inch means the valve size is 12 inch, and in DN it is DN30... |
 |
Dirt Separator | Basic informationThis valve is used for water purification.Features1. Easy to operate;2. No water stop is required to clean the cavity body;3. Dirt... |
Same products
 |
Corrosion-Resistant Pneumatic Insulated Ball Valve | Seller: 869388 | Zhejiang Wisley Automatic Valve Co., Ltd. specializes in manufacturing pneumatic valves and indus... |
 |
Precision Valve Manufacturing for Energy Infrastructure | Seller: 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 | Seller: 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 | Seller: Greentech International (Zhangqiu) Co., Ltd | Automatic Assembly: Simplifies manual processes with precision and efficiency. Positive Pressu... |
 |
RV-02 Pressure Relief Valve | Seller: Greentech Industry (Jinan) Co., Ltd | RV-02A pressure relief valveAir Blower pressure relief valve is installed on the inlet &outle... |
