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Double Check Valve Backflow Preventer

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Total 1696 products for double check valve backflow preventer Manufacture & Suppliers

Stainless Steel Wafer Lift Check Valve 2-36 Inch Class150-600

...Check Valve Stainless Steel Single-plate Verticle Flow Single-plate wafer check valves prevent reverse flow with disc movement that is parallel with the flow. With this design, the disc is always in the flow...

Shanghai Kolink Valve Co., Ltd.
Shanghai,China

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EPDM Swing Flex Check Valve

...Check Valve For General Water Supply / Sewage Rubber Coated Wedge 40 degree incline Nylon Reinforcement Disc Swing Flex Check Valve Ductile Iron EPOXY Coated Description: A rubber flapper swing check valve...

Suzhou Alpine Flow Control Co., Ltd
Jiangsu,China

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6 Inch Swing Type Check Valve / Wafer Flapper Check Valve DN15 ~DN1200

...Check Valve / Wafer Flapper Check Valve DN15 ~DN1200 Swing Type Check Valve Application: The Check valve is used for preventing the back-going of medium in pipelines and equipments, and the pressure of mediu...

Shanghai kangquan Valve Co. Ltd.
Shanghai,China

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Polished 2 Inch Tri Clamp Check Valve Smooth Surfaces Two Splitted Design

...Check Valves Tri Clamp Connection Type , Smooth Surfaces Sanitary check valve also known as one-way valve, its role is to prevent the pipeline water back in the media. Design: Forged valve body ensures non-p...

Nyhau Fluid Equipment Co.,Ltd
Jiangsu,China

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6 Inch Swing Type Check Valve / Wafer Flapper Check Valve DN15 ~DN1200

...Check Valve / Wafer Flapper Check Valve DN15 ~DN1200 Swing Type Check Valve Application: The Check valve is used for preventing the back-going of medium in pipelines and equipments, and the pressure of mediu...

Shanghai kangquan Valve Co. Ltd.
Shanghai,China

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Flange Connection Check Valve Available For PN16 Pressure Rating

...t is made of high quality ductile iron with a rubber disc that seals tightly and prevents back flow. The check valve is certified by ISO and is designed to meet the highest standards. It is suitable for use ...

Suzhou Alpine Flow Control Co., Ltd
Jiangsu,China

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High Temperature Resistance Duckbill Check Valve DN50-DN3000

...Check Valve Expansion joint rubber, also known as the duckbill flexible check valve, is a specialized type of valve primarily used to control the direction of liquid flow, ensuring that liquids flow in one d...

Shanghai Songjiang Jingning Shock Absorber Co.,Ltd.
Shandong,China

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Manual Stainless 304 Non Return Check Valve Flanged Connection Style

...prevent back flow in the line, and operate automatically, according to increases or decreases in line pressures. Flow through a lift check is the same as a globe valve. Lift check valves are generally instal...

Zhejiang TongJiang Holdings Company
Zhejiang,China

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VBPDE-FLV Metal Seal Pressure Hydraulic Double Lock Valve Main Check Valves

... while preventing reverse flow. It consists of a main check valve and a pilot control mechanism. Here's a general overview of how a pilot-operated check valve works: When the solenoid is energized by an elec...

Changsha Kaienli Hydraulic Technology Co., Ltd.
Hunan,China

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Stainless Steel CF8M Double Plate Check Valve 150Lb~900Lb

... B16.5, B16.47 SERIES A & SERIES B, JIS, BS, DIN Specifications: 1) Size: 1-1/2" to 60" 2) Class: 150LB to 2500LB 3) Type: Double plate or single plate, wafer type, lugged type,...

WENZHOU ANRY VALVE CO.,LTD.
Zhejiang,China

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Axial Flow Non Return Check Valve CF8M / WCB Type With Double Flanged Connection

...Check Valve CF8M, WCB Double Flange ASME B16.10 , Class 300 LB Check Valve PRODUCT INTRODUCTION Check Valve Description An axial check valve is the preferred solution for critical non-return applications suc...

Zhejiang TongJiang Holdings Company
Zhejiang,China

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Non Return Stainless Steel Check Valve , Quiet Hydraulic Check Valve

... B16.34 Pressure test as API 598 Applicable Medium: water ,gas,oil,and other causticity medium. Stainless Steel Check Valve Application: Valve is used for preventing the back-going of medium in pipelines and...

Shanghai kangquan Valve Co. Ltd.
Shanghai,China

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Wafer Type Non Return Valve , ASME 250 LB Class Ductile Iron Silent Check Valve

...Check Valve in Wafer Type of Ductile Iron with Wafer Ends, Class 250 LB Check Valve PRODUCT INTRODUCTION Check Valve Description Silent Check Valves are designed to prevent water hammer in multi-story buildi...

Zhejiang TongJiang Holdings Company
Zhejiang,China

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Stainless Steel Sanitary Check Valves 3A Manual Tri Clamp Check Valve

...n the pressure of stem bottom exceed the stem above. The check valve disc will close when the two pressure are equaled. So that the flow goes one way in the pipeline, and prevent the flui...

Nyhau Fluid Equipment Co.,Ltd
Jiangsu,China

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Non Return Stainless Steel Swing Check Valve , Quiet Hydraulic Check Valve

... B16.34 Pressure test as API 598 Applicable Medium: water ,gas,oil,and other causticity medium. Stainless Steel Check Valve Application: Valve is used for preventing the back-going of medium in pipelines and...

Zhejiang JieYu Valve Co., Ltd.
Zhejiang,China

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Non Return Stainless Steel Check Valve , Quiet Hydraulic Check Valve

... B16.34 Pressure test as API 598 Applicable Medium: water ,gas,oil,and other causticity medium. Stainless Steel Check Valve Application: Valve is used for preventing the back-going of medium in pipelines and...

Shanghai kangquan Valve Co. Ltd.
Shanghai,China

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API 600 Carbon Steel 150LB 3" Swing ANSI Flanged Check Valve WCB Check Valve

...valve resulting in minimal pressure drop. The disc swings into the open position as the media flows through the line. Back pressure in the line holds the disc in the closed position. Swing check valves may b...

zhejiang teyi valve co.,ltd.
Zhejiang,China

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Non Return Stainless Steel Swing Check Valve , Quiet Hydraulic Check Valve

... B16.34 Pressure test as API 598 Applicable Medium: water ,gas,oil,and other causticity medium. Stainless Steel Check Valve Application: Valve is used for preventing the back-going of medium in pipelines and...

Zhejiang JieYu Valve Co., Ltd.
Zhejiang,China

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Ductile Iron Lift Check Valve Flanged End PN10 PN16 Pressure

... has been stopped. Priming the pump prior to a re-start is therefore no longer necessary. Spring-loaded lift check valves can be installed in the piping in almost any mounting position. Compared with swing c...

Anhui Prosper Flow Technology Co., Ltd
Anhui,China

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