pressure-water control valve

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• pressure water valve — Device used to control water flow. It is responsive to head pressure of refrigerating system …   Dictionary of automotive terms

• Control valves — are valves used to control conditions such as flow, pressure, temperature, and liquid level by fully or partially opening or closing in response to signals received from controllers that compare a setpoint to a process variable whose value is… …   Wikipedia

• Flow control valve — Globe control valve with the pneumatic actuator and smart positioner A flow control valve regulates the flow or pressure of a fluid. Control valves normally respond to signals generated by independent devices such as flow meters or temperature… …   Wikipedia

• Water heating — is a thermodynamic process using an energy source to heat water above its initial temperature. Typical domestic uses of hot water are for cooking, cleaning, bathing, and space heating. In industry, both hot water and water heated to steam have… …   Wikipedia

• Water supply — is the process of self provision or provision by third parties of water of various qualities to different users. Irrigation is covered separately. Global access to waterIn 2004 about 3.5 billion people worldwide (54% of the global population) had …   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

• Control of the National Grid (UK) — The National Grid (UK) is the high voltage electric power transmission network in Great Britain, connecting power stations and major substations to ensure that electricity generated anywhere in Great Britain can be used to satisfy demand… …   Wikipedia

• control — {{Roman}}I.{{/Roman}} noun 1 power over sb/sth ADJECTIVE ▪ absolute, complete, full, total ▪ effective, proper (esp. BrE) ▪ close …   Collocations dictionary

• Water hammer — (or, more generally, fluid hammer) is a pressure surge or wave resulting when a fluid in motion is forced to stop or change direction suddenly (Momentum Change). Water hammer commonly occurs when a valve is closed suddenly at an end of a pipeline …   Wikipedia

• Pressure vessel — Vertical pressure vessels installed in a structure A pressure vessel is a closed container designed to hold gases or liquids at a pressure substantially different from the ambient pressure. The pressure differential is dangerous and many fatal… …   Wikipedia

• Water injection (engines) — In internal combustion engines, water injection, also known as anti detonant injection, is spraying water into the cylinder or incoming fuel air mixture to cool the combustion chambers of the engine, allowing for greater compression ratios and… …   Wikipedia