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backflow check valve

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Backflow Prevention Rubber Check Valve

Details: Backflow Prevention Rubber Check Valve: It is a new water supply and drainage valve with full rubber structure. It is used widely in various drain...

Zhengzhou Bihe Trade Co., Ltd.

Business Type:Manufacturers

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China (Mainland)China (Mainland)

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Threaded stainless steel check valve(304,316)

Model / Specifications:H11H

Standard or Nonstandard:Standard

Structure:Check

Pressure:Low Pressure

Power:

Details: 【 product use 】H14W - 16 r, H14W - 16 p type the function of internal thread stainless steel check valve is used to prevent the backflow medium ...

Wenzhou STV Valve co.,Ltd

Business Type:Manufacturers

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China (Mainland)China (Mainland)

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Silent check valve

Standard or Nonstandard:Standard

Structure:Check

Pressure:PN10PN16PN25

Power:automatic

Details: Silent check valve prevent backflow of mediums, eliminate the water hammer upon closing,without vibration and noise...

Zhejiang Guanlong Valve Machinery Co., Ltd.

Business Type:Manufacturers

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China (Mainland)China (Mainland)

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Best SellerXH41 Duckbilled Sewage Check Valve Prices

Details: Best Seller!!!!!XH41 Backflow Duckbilled Sewage Check Valve Prices The sewage valve, flanged rubber products main use: apply to the waterproofing ...

Gongyi Xinli Pipeline Equipment Co., Ltd.

Business Type:Manufacturers

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China (Mainland)China (Mainland)

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Easy operation toilet fill valve with customized height

Details: A1210 Fill Valve Product Description: 1.Small body, easier to install 2.Check Valve prevents water backflow.3,Fill valve height can be customized ...

BST (Zhongshan) Plumbing Inc.

Business Type:Manufacturers

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China (Mainland)China (Mainland)

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WD-1201 DCVE Bronze Backflow Preventor water valve,Double Check Valve

Details: WD-1201 DCVE-Bronze Backflow Preventor Double Check Valve♦ Size:1/2" 3/4" 1" 11/4" 11/2" 2"• Maximum Wor...

Yuhuan World Copper Co., Ltd.

Business Type:Manufacturers

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China (Mainland)China (Mainland)

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small plastic check valve to prevent water and oil backflow

Details: Product name: small plastic check valve to prevent water and oil backflow Product details: 1.Material:pp (check valve)2.Seal rubber:viton 3.Si...

Chongqing Aqua Tech Trading Corporation Limited

Business Type:Manufacturers

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China (Mainland)China (Mainland)

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China valve

Details: Product details : China valve check valves (One - way valve) : check valve as a check valve, a one-way valve or check valve, its role is to preven...

Suzhou Ephood Automation Equipment Co., Ltd.

Business Type:Manufacturers

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China (Mainland)China (Mainland)

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Easy operation fill valves

Details: A1210 Fill Valve Product Description: 1.Small body, easier to install 2.Check Valve prevents water backflow. 3,Fill valve height can be custo...

BST (Zhongshan) Plumbing Inc.

Business Type:Manufacturers

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China (Mainland)China (Mainland)

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Check Valve Slow Shut Check Valve

Material:Aluminum

Standard or Nonstandard:Nonstandard

Details: Slow shut check valve, also known as check valve or check valve, its role is to prevent the backflow medium pipeline. Open-close part by medium fl...

China Fagong Valve Co.,Ltd.

Business Type:Distributor/Wholesaler

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China (Mainland)China (Mainland)

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DCVE Bronze Backflow Preventor Double Check Valve

Model / Specifications:WD-1201

Standard or Nonstandard:Standard

Structure:Check

Pressure:Medium Pressure

Power:Hydraulic

Details: -Top Access for testing, repair and maintenance -Full port design. -Bronze body. -Chrome plated machined brass rod ball....Place of Origin: CN;ZHE

Yuhuan World Copper Co., Ltd.

Business Type:Manufacturers

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China (Mainland)China (Mainland)

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DCVE Bronze Backflow Preventor Double Check Valve

Model / Specifications:WD-1201

Standard or Nonstandard:Standard

Structure:Check

Pressure:Medium Pressure

Power:Hydraulic

Details: -Top Access for testing, repair and maintenance -Full port design. -Bronze body. -Chrome plated machined brass rod ball....Place of Origin: CN;ZHE

Yuhuan World Copper Co., Ltd.

Business Type:Manufacturers

Free Member

China (Mainland)China (Mainland)

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Bronze Backflow Preventor Double Check Valve

Model / Specifications:WD-1202

Standard or Nonstandard:Standard

Structure:Check

Pressure:Medium Pressure

Power:Hydraulic

Details: -Maximum Working Pressure: 175psi (12 bars) -Temperature Range: 33oF-180oF (-3C-75C). -Bronze body ball valve test cocks....Place of Origin: CN;ZHE

Yuhuan World Copper Co., Ltd.

Business Type:Manufacturers

Free Member

China (Mainland)China (Mainland)

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WD-1202 DCVE-Bronze Backflow Preventor Double Check Valve

Model / Specifications:WD-1202

Standard or Nonstandard:Standard

Structure:Check

Pressure:Medium Pressure

Power:Hydraulic

Details: Products/Services: Special Bronze Valve,PRV,PVB,DCVE,Brass Ball Valve,Manifold,Gate & Stop Valve,Check valve,Bibcock & Angle Valve,Fitting

Yuhuan World Copper Co., Ltd.

Business Type:Manufacturers

Free Member

China (Mainland)China (Mainland)

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WD-1201 DCVE Bronze Backflow Preventor Double Check Valve

Model / Specifications:WD-1201

Standard or Nonstandard:Standard

Structure:Check

Pressure:Medium Pressure

Power:Hydraulic

Details: Products/Services: Special Bronze Valve,PRV,PVB,DCVE,Brass Ball Valve,Manifold,Gate & Stop Valve,Check valve,Bibcock & Angle Valve,Fitting

Yuhuan World Copper Co., Ltd.

Business Type:Manufacturers

Free Member

China (Mainland)China (Mainland)

Inquiry

WD-1202 Bronze Backflow Preventor Double Check Valve

Model / Specifications:WD-1202

Standard or Nonstandard:Standard

Structure:Check

Pressure:Medium Pressure

Power:Hydraulic

Details: -Maximum Working Pressure: 175psi (12 bars) -Temperature Range: 33oF-180oF (-3C-75C). -Bronze body ball valve test cocks....Place of Origin: CN;ZHE

Yuhuan World Copper Co., Ltd.

Business Type:Manufacturers

Free Member

China (Mainland)China (Mainland)

Inquiry

WD-1201 Bronze Backflow Preventor Double Check Valve

Model / Specifications:WD-1201

Standard or Nonstandard:Standard

Structure:Check

Pressure:Medium Pressure

Power:Hydraulic

Details: -Top Access for testing, repair and maintenance -Full port design. -Bronze body. -Chrome plated machined brass rod ball....Place of Origin: CN;ZHE

Yuhuan World Copper Co., Ltd.

Business Type:Manufacturers

Free Member

China (Mainland)China (Mainland)

Inquiry

Bronze Backflow Preventor water valve

Details: WD-1201 DCVE-Bronze Backflow Preventor Double Check Valve♦ Size:1/2" 3/4" 1" 11/4" 11/2" 2"• Maximum Wor...

Yuhuan World Copper Co., Ltd.

Business Type:Manufacturers

Free Member

China (Mainland)China (Mainland)

Inquiry

Bronze Backflow Preventor Double Check Valve WD-1202

Model / Specifications:WD-1202

Standard or Nonstandard:Standard

Structure:Check

Pressure:Medium Pressure

Power:Hydraulic

Details: -Maximum Working Pressure: 175psi (12 bars) -Temperature Range: 33oF-180oF (-3C-75C). -Bronze body ball valve test cocks....Place of Origin: CN;ZHE

Yuhuan World Copper Co., Ltd.

Business Type:Manufacturers

Free Member

China (Mainland)China (Mainland)

Inquiry

Bronze Backflow Preventor Double Check Valve WD-1202

Model / Specifications:WD-1202

Standard or Nonstandard:Standard

Structure:Check

Pressure:Medium Pressure

Power:Hydraulic

Details: -Maximum Working Pressure: 175psi (12 bars) -Temperature Range: 33oF-180oF (-3C-75C). -Bronze body ball valve test cocks....Place of Origin: CN;ZHE

Yuhuan World Copper Co., Ltd.

Business Type:Manufacturers

Free Member

China (Mainland)China (Mainland)

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Brass check valve

Standard or Nonstandard:Standard

Structure:Pilot

Pressure:Medium Pressure

Power:Solenoid

Details: check valve: 1.copper 2.check the backflow ISO:9001/2000, CE, ROHS, CQC...

Hangzhou Xiangjun Electronic Co., Ltd.

Business Type:Manufacturers

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China (Mainland)China (Mainland)

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Shuttle Type Check Valve

Standard or Nonstandard:Standard

Structure:Check

Pressure:Medium Pressure

Power:automatic

Details: Shuttle Type Check Valve avoid the impact and noise of water hammer caused by backflow of liquid in ordinary check valve...

Zhejiang Guanlong Valve Machinery Co., Ltd.

Business Type:Manufacturers

Free Member

China (Mainland)China (Mainland)

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WD-1201 DCVE-Special Bronze Backflow Preventor Double Check Valve

Model / Specifications:WD-1201

Standard or Nonstandard:Standard

Structure:Check

Pressure:Medium Pressure

Power:Hydraulic

Details: -Cast bronze body construction. -Replaceable seats and seat discs. -Compact design. -Top mounted ball valve test cocks....

Yuhuan World Copper Co., Ltd.

Business Type:Manufacturers

Free Member

China (Mainland)China (Mainland)

Inquiry

Special Bronze Backflow Preventor Double Check Valve WD-1201

Model / Specifications:WD-1201

Standard or Nonstandard:Standard

Structure:Check

Pressure:Medium Pressure

Power:Hydraulic

Details: -Cast bronze body construction. -Replaceable seats and seat discs. -Compact design. -Top mounted ball valve test cocks....Place of Origin: CN;ZHE

Yuhuan World Copper Co., Ltd.

Business Type:Manufacturers

Free Member

China (Mainland)China (Mainland)

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Wafer Silencing Check Valve

Standard or Nonstandard:Standard

Structure:Check

Pressure:PN10PN16PN25

Power:automatic

Details: Wafer Silencing Check Valve functioned to avoid backflow of mediums. it is featured by outstanding capability to eliminate nois...

Zhejiang Guanlong Valve Machinery Co., Ltd.

Business Type:Manufacturers

Free Member

China (Mainland)China (Mainland)

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forged steel swing cheek valve

Standard or Nonstandard:Standard

Structure:Check

Pressure:Medium Pressure

Power:Manual

Details: Forged steel check valve, Check Valves can automatically stop the medium backflow, through the force of the medium can open the disc of valves, ch...

Zhangsheng Valve Co., Ltd.

Business Type:Manufacturers

Free Member

China (Mainland)China (Mainland)

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Ball Type Check Valve

Standard or Nonstandard:Standard

Structure:Ball

Pressure:PN10PN16PN25125LB150LB

Power:automatic

Details: Ball Type Check Valve function to cutoff backflow, prevent pump from reverse rotation and ensure safe running of pipeline...

Zhejiang Guanlong Valve Machinery Co., Ltd.

Business Type:Manufacturers

Free Member

China (Mainland)China (Mainland)

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SUS304/SUS316L thread sanitary check valve

Model / Specifications:DN25-DN100

Standard or Nonstandard:Standard

Structure:Check

Pressure:Medium Pressure

Power:Manual

Details: Sanitary check valve/stainless steel check valve/thread check valve1)ApplicationThe check valve is used in stainless steel piping system to preven...

Yuanen Fluid Equipment Co.,Ltd

Business Type:Manufacturers

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China (Mainland)China (Mainland)

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304 CHECK VALVE

Model / Specifications:DN25-DN100

Standard or Nonstandard:Standard

Structure:Check

Pressure:Low Pressure

Power:Pneumatic

Details: Sanitary check valve/stainless steel check valve/thread check valve/non-return valve1)Application The check valve is used in stainless steel pipin...

Yuanen Fluid Equipment Co.,Ltd

Business Type:Manufacturers

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Free Member

China (Mainland)China (Mainland)

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316 CHECK VALVES

Model / Specifications:DN25-DN100

Standard or Nonstandard:Standard

Structure:Check

Pressure:Medium Pressure

Power:Manual

Details: Sanitary check valve/stainless steel check valve/thread check valve/non-return valve1)Application The check valve is used in stainless steel pipin...

Yuanen Fluid Equipment Co.,Ltd

Business Type:Manufacturers

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Free Member

China (Mainland)China (Mainland)

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Product Summary

Backflow check valve, is also named check valve. A check valve is a type of valve which only permits flow in one direction.

These valves are often designed for safety reasons, to prevent backflow and to ensure that someone operating a system knows which direction fluids and gases are flowing in. Check valves can also be used for tasks like creating leak tight seals, which can be an important safety or convenience future.

One of the most common styles is the ball valve, made by mounting a ball over a disc with a small hole in it. Liquid or gas can flow through the hole and around the ball, but when it tries to push the other way, it shoes the ball up against the disc, creating a seal.

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