Total 546 products for what is a backflow preventer Manufacture & Suppliers

• 15ml 30ml 50ml PP Plastic Airless Bottle for Cosmetics

  

  ... atop the product and creates an airtight seal against the chamber walls. ◦ One-Way Valve Pump: A pump mechanism that draws product from the bottom and has a valve to prevent backflow. ◦ Actuator: The button...

  Yuyao Bill Spray Co.,Ltd

  Zhejiang,China

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• Wholesale 5ml 10ml 15ml Capacity AS Plastic Airless Pump Bottle with Vacuum Pump System and Customized Silkscreen Print

  

  ... pump system. A piston/diaphragm at the bottom rises as product is dispensed, preventing air from entering and ensuring no product backflow. Primary Material (Bottle Body) AS (Acrylonitrile Styrene): A rigid...

  Yuyao Bill Spray Co.,Ltd

  Zhejiang,China

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• 1/2 Inch Rotating Spray Head Garden Lawn Irrigation Misting Sprinkler Nozzle

  

  ... Nozzle The sprinkler can spray water in all directions without manual intervention. The two identical water outlets is to make sure normally spraying for sprinkler and to to prevent water backflow. The spra...

  YuYao TianJia Garden Irrigation Equipment Co.,Ltd.

  Zhejiang,China

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• Oilfield Cementing Casing Shoe And Float Collar API standard

  

  ... float collar& shoe offer dependable performance for all classes of oil and gas wells. The plunger type valves prevent cement backflow, provide casing buoyancy during run-in, and act as internal bops during ...

  Dongying Oilman Machinery Equipment Co.,Ltd.

  China

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• N80 Oilfield Cementing Tools , Non Rotating Casing Float Collar

  

  ...l Drilling Description: The cement float collar& shoe offer dependable performance for all classes of oil and gas wells. The plunger type valves prevent cement backflow, provide casing buoyancy during run-in...

  Dongying Oilman Machinery Equipment Co.,Ltd.

  China

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• API Oilfield Downhole Tools 2F-3R Flapper Type Drill Pipe Float Valve & Float Valve Sub

  

  ...-back of the bit sub, to provide fluid flow control at the bottom of the drill stem. It also prevents backflow of cuttings from plugging the drill bit jets while making connections. We make a complete line o...

  Dongying Oilman Machinery Equipment Co.,Ltd.

  China

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• API 6-5/8" REG Drill Pipe Float Valve Check Valve & Float Valve Sub

  

  ...-back of the bit sub, to provide fluid flow control at the bottom of the drill stem. It also prevents backflow of cuttings from plugging the drill bit jets while making connections. We make a complete line o...

  Dongying Oilman Machinery Equipment Co.,Ltd.

  China

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• API Oilfield Plunger And Flapper Type Drill Pipe Float Valve For Oil Well Or Water Well

  

  ...bit sub, to provide fluid flow control at the bottom of the drill stem. It also prevents backflow of cuttings from plugging the drill bit jets while making connections. We make a complete line of Float Valve...

  Dongying Oilman Machinery Equipment Co.,Ltd.

  China

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• API 5CT Casing Shoe And Float Collar 5/8" BTC Thread

  

  ... offer dependable performance for all classes of oil and gas wells. The plunger type valves prevent cement backflow, provide casing buoyancy during run-in, and act as internal bops during the process of runn...

  Dongying Oilman Machinery Equipment Co.,Ltd.

  China

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• PN16 Class150 Ductile Iron Body Handle Wafer Butterfly Valve For Water Oil Gas

  

  ... to prevent any backflow in systems designed for unidirectional flow. It accomplishes this with a tightly fitting seal; i.e., gasket, o-ring, precision machined, and a flat valve face on the upstream and ......

  Dongying Oilman Machinery Equipment Co.,Ltd.

  China

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• 6 Inch Stainless Steel 304 Body Disc Seat EPDM Wafer Type Butterfly Valves Pneumatic Actuator Butterfly Valve

  

  ...maintain a seal against bi-directional pressure differential to prevent any backflow in systems designed for unidirectional flow. It accomplishes this with a tightly fitting seal; i.e., gasket, o-ring, preci...

  Dongying Oilman Machinery Equipment Co.,Ltd.

  China

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• 2F3R 5F6R Model F Plunger Type Drill Pipe Float Valves With Repair Kit

  

  ...the bottom of the drill stem. It also prevents backflow of cuttings from plugging the drill bit jets while making connections. Float valve is one of necessary tool for oil drilling, it consists of float ......

  Dongying Oilman Machinery Equipment Co.,Ltd.

  China

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• Flanged Cast Iron Butterfly Type Buffer Check Valve OEM Support

  

  ...industrial water supply and sewage treatment plants to prevent medium backflow in the pipe network. It automatically eliminates destructive water hammer to ensure that the water pump and pipeline are not dam...

  Handan Shengnada New Material Technology Co., Ltd.

  Hebei,China

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• Square Protrusion Cast Iron Gully Grate For Waterflow C250 Gully Grating

  

  ... drainage systems, mainly used for overflow control in rainwater or sewage systems. It is made of sturdy and durable cast iron material, with a raised manhole cover to prevent water backflow and overflow. Th...

  Handan Shengnada New Material Technology Co., Ltd.

  Hebei,China

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• Well Urban Flood Control Rainwater Outlet Gully Grate And Frame Ductile Iron Overflow

  

  ... drainage systems, mainly used for overflow control in rainwater or sewage systems. It is made of sturdy and durable cast iron material, with a raised manhole cover to prevent water backflow and overflow. Th...

  Handan Shengnada New Material Technology Co., Ltd.

  Hebei,China

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• Ductile Iron Flange Check Valve PN16 DN100 for Water, Oil, and Gas Pipelines

  

  ... valve, one-way valve), which "only allows one-way flow of the medium and prevents backflow" in the fluid pipeline. The following is a disassembly from the structure, principle, and application: Co...

  Handan Shengnada New Material Technology Co., Ltd.

  Hebei,China

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• Electric Actuator Flanged Gate Valve CF8M High Pressure

  

  ... and chemical industries. They automatically open and close based on the flow of the medium, preventing backflow. Gate valves are controlled by the raising and lowering of the gate disc. The flange connectio...

  Handan Shengnada New Material Technology Co., Ltd.

  Hebei,China

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• Wafer Type High Performance Butterfly Valve Seal Ring Blue Color 2 - 60 Inch

  

  ...designed to maintain a seal against bi-directional pressure differential to prevent any backflow in systems designed for unidirectional flow. It accomplishes this with a tightly fitting seal; i.e., gasket, o...

  Tengs Valve International Limited

  Zhejiang,China

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• Reusable Laryngeal Mask Airway Reinforced Silicone LMA

  

  ... blocker could prevent the backflow of the foreign matter. 3. The capsule is under all-in-one molding, such craft could improve the safety of products. 4. The capsule is better balanced on both sides of the ...

  MCREAT (GUANGZHOU) BIO-TECH CO.,LTD

  Guangdong,China

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• Single Lumen PVC Laryngeal Mask Airway Disposable LMA

  

  ...good biocompatibility. 2. There are 2 types, with/without the blocker, the blocker could prevent the backflow of the foreign matter. 3. The capsule is under all-in-one molding, such craft could improve the s...

  MCREAT (GUANGZHOU) BIO-TECH CO.,LTD

  Guangdong,China

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