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Double Check Valve Backflow Preventer

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

Wafer Butterfly Flanged Swing Check Valve Cast Iron 1.0/1.6 Mpa

...Check Valve 1.0/1.6 Mpa Flanged Swing Check Valve effect The function of butterfly check valve is to only allow the medium to flow in one direction and prevent the flow in one direction. Usually, this kind o...

China • Yuanda Valve Group Co., Ltd.
Hebei,China

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Din 3202 F6 Ductile Iron Check Valve 4 Inch For Sewage Treatment

... with minimum friction loss. The full-ported valve seat is uniquely designed allowing the ball to seat leak-tight without getting wedge into the valve seat. For vacuum or anti-flooding valve application, a "...

Anhui Prosper Flow Technology Co., Ltd
Anhui,China

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Wafer Butterfly Flanged Swing Check Valve Cast Iron 1.0/1.6 Mpa

...Check Valve 1.0/1.6 Mpa Flanged Swing Check Valve effect The function of butterfly check valve is to only allow the medium to flow in one direction and prevent the flow in one direction. Usually, this kind o...

China • Yuanda Valve Group Co., Ltd.
Hebei,China

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Ductile Iron BS5155 DN100 Tilting Disc Check Valve Epoxy Coating

... diameter: DN300-DN1000mm Tilting Seat Buffering Check Valve of the sealing surface is declined against the outlet with small dropping angle to reduce the vibration meanwhile there is buffering device in the...

ANHUI SIFA VALVE.CO., LTD.
Anhui,China

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EN12233 GJS500-7 Double Flange Check Valve For Water System

Double Flange Check Valve For Clear or Waste water , Stainless Steel Pin For HVAC System Description: Rubber Disc Check Valve, is a 40 degree angle tilted seat design helps close very soon for shorter stroke ...

Suzhou Alpine Flow Control Co., Ltd
Jiangsu,China

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Double Flange Ductile Iron Swing Check Valve With Hydraulic Cushion Device

RDCS Double Flange Ductile Iron Swing Check Valve With Hydraulic Cushion Device Description: The RDCS is a slow closing check valve with hydraulic cushion. The bottom of the body is equipped with micro-resistan...

Suzhou Alpine Flow Control Co., Ltd
Jiangsu,China

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EN12233 Double Flange Rubber Coated Disc Check Valve For Water System 40 Degree

EN12233 Double Flange Rubber Coated Disc Check Valve For Water System 40 Degree �� Description: Rubber Disc Check Valve, is a 40 degree angle tilted seat design helps close very soon for shorter stroke and minim...

Suzhou Alpine Flow Control Co., Ltd
Jiangsu,China

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EN12233 Ductile Iron Double Flange Check Valve With Rubber Coated Disc

EN12233 Ductile Iron Double Flange Check Valve With Rubber Coated Disc Description: Rubber Disc Check Valve, is a 40 degree angle tilted seat design helps close very soon for shorter stroke and minimize the wat...

Suzhou Alpine Flow Control Co., Ltd
Jiangsu,China

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Cast Steel Dual Plate Wafer Check Valve 2-48 Inch DN50-DN1200

... Seat Flanged or Butt-welding Ends One-way flow Control Applicable Standards of Dual-Plate Wafer Check Valves: a) Design&Manufacture: API 6D, BS 1868, ASME B16.34 b) Face to Face: API 6D, ASME B16.......

Shanghai Kolink Valve Co., Ltd.
Shanghai,China

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DN15 Disc Wafer Check Valve , Construction Ductile Iron Ductile Iron Check Valve

...Check Valve , Construction Ductile Iron Ductile Iron Check Valve Application: Valve is used for preventing the back-going of medium in pipelines and equipments, and the pressure of medium will bring the resu...

Shanghai kangquan Valve Co. Ltd.
Shanghai,China

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GB Anticorrosive Ductile Iron Check Valve , Rustproof Flange Type Check Valve

...Check Valve Flanged Swing Check Valve Usage This valve is mainly used at the outlet of pipeline pump in water supply and drainage system, petroleum, chemical industry and other non corrosive liquid industria...

China • Yuanda Valve Group Co., Ltd.
Hebei,China

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DN15 Disc Wafer Check Valve , Construction Ductile Iron Ductile Iron Check Valve

...Check Valve , Construction Ductile Iron Ductile Iron Check Valve Application: Valve is used for preventing the back-going of medium in pipelines and equipments, and the pressure of medium will bring the resu...

Shanghai kangquan Valve Co. Ltd.
Shanghai,China

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Sewage Compact Full Bore Check Valve Disc Swing Type PN6 to PN25

...k. Valve disc is carbon steel coated with rubber (EPDM or NBR), there is no tendency for the seating surfaces of rubber disc swing check valve to gall or score, because the disc meets the oblique seat with r...

zhejiang teyi valve co.,ltd.
Zhejiang,China

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GB Anticorrosive Ductile Iron Check Valve , Rustproof Flange Type Check Valve

...Check Valve Flanged Swing Check Valve Usage This valve is mainly used at the outlet of pipeline pump in water supply and drainage system, petroleum, chemical industry and other non corrosive liquid industria...

China • Yuanda Valve Group Co., Ltd.
Hebei,China

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Automatic Rubber Flapper Swing Flex Check Valve Nylon Reinforcement Disc Available

... automatically. During system flow conditions, the movement of the fluid forces the disc to the open position allowing 100% un-restricted flow area through the valve. Under reverse flow conditions, the disc ...

Suzhou Alpine Flow Control Co., Ltd
Jiangsu,China

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Water Hammer Prevention No - Return Check Valve With Hydrodynamic Design

Anti Water Hammer No-return Check Valve Quick Close Ductile iron Body Description NSCV- Non Slam Check Valve is used as a protection against reverse flow when power failure or off in areas where noise pollution...

Suzhou Alpine Flow Control Co., Ltd
Jiangsu,China

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Swing Flex Check Valve Nylon Reinforcement Rubber Disc

...Check Valve Nylon Reinforcement Rubber Disc Description: RDCV is a rubber disc check valve, DI body and bonnet, CS plate coated with EPDM and nylon reinforcement, 304SS stem (bar), GI bolts.That is designed ...

Suzhou Alpine Flow Control Co., Ltd
Jiangsu,China

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