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backflow check valve

См. также в других словарях:

  • Check valve — Tilting disc inconel check valve …   Wikipedia

  • Double check valve — A double check valve or double check assembly (DCA) is a backflow prevention device designed to protect water supplies from contamination. It is also a valve used in air brake systems on heavy trucks. Usage in Water Supply: In the case of usage… …   Wikipedia

  • Backflow prevention device — See also: Backflow (plumbing) In this situation, dirty water from the hillside pool will back siphon or back flow down the hosepipe and into the clean water tank. To prevent this from happening, the house s external tap should be fitted with a… …   Wikipedia

  • Valve — This article is about the flow control device. For the game developer, see Valve Corporation. For the electronic component, see Vacuum tube. For other uses, see Valve (disambiguation). These water valves are operated by handles. A valve is a… …   Wikipedia

  • valve — valveless, adj. valvelike, adj. /valv/, n., v., valved, valving. n. 1. any device for halting or controlling the flow of a liquid, gas, or other material through a passage, pipe, inlet, outlet, etc. 2. a hinged lid or other movable part that… …   Universalium

  • Reduced pressure backflow prevention assembly — A reduced pressure (RP) backflow prevention device is a device used to protect the potable water supply from contaminated water. An RP valve consists of an automatic pressure relief valve in between two check valves. The pressure relief valve… …   Wikipedia

  • Tap (valve) — Spigot and faucet redirect here. For other uses, see Spigot (disambiguation). A valve tap is a noise made by the valves of internal combustion engines; see Poppet valve > Internal combustion engine. Indoor Tap commonly found in the bathroom or …   Wikipedia

  • Chemigation valve — A chemigation valve is an apparatus designed to protect water supplies from agricultural chemicals used during chemigation, the application of chemicals such as fertilizers and pesticides through irrigation water. Most chemigation valves consist… …   Wikipedia

  • Reduced pressure zone device — A Reduced Pressure Zone Device (RPZD, RPZ or RPZ valve) is a type of backflow prevention device used to protect water supplies from contamination. An RPZD is considered suitable for high hazard applications, that is, where the consequence of… …   Wikipedia

  • Siphon — Not to be confused with Psiphon. This article is about the domestic device. For the animal organ, see siphon (disambiguation). Siphon principle …   Wikipedia

  • Glossary of firefighting equipment — Note: This list is incomplete. You can help Wikipedia by [http://en.wikipedia.org/w/index.php?title=Glossary of firefighting equipment action=edit adding to it] . 0 9 * 1 3/4 inch hose: see attack hose * 2 1/2 inch hose: see attack hose , supply… …   Wikipedia

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