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Steam and water analysis system (SWAS) [1] is a system dedicated to the analysis of steam or water. In power stations , it is usually used to analyze boiler steam and water to ensure the water used to generate electricity is clean from impurities which can cause corrosion to any metallic surface, such as in boiler and turbine .
Snifting valve Steam accumulator Steam drum a cylindrical vessel mounted at a high point of a water-tube boiler, where dry steam may separate above the water level, so that it may be drawn off without risk of priming. This is similar to the function of a dome in a fire-tube boiler. Steam & water drum
A shutdown valve (also referred to as SDV or emergency shutdown valve, ESV, ESD, or ESDV; or safety shutoff valve) is an actuated valve designed to stop the flow of a hazardous fluid upon the detection of a dangerous event. This provides protection against possible harm to people, equipment or the environment.
In a steam engine, cutoff is the point in the piston stroke at which the inlet valve is closed. On a steam locomotive, the cutoff is controlled by the reversing gear.. The point at which the inlet valve closes and stops the entry of steam into the cylinder from the boiler plays a crucial role in the control of a steam engine.
A zone valve is a specific type of valve used to control the flow of water or steam in a hydronic heating or cooling system. In the interest of improving efficiency and occupant comfort, such systems are commonly divided up into multiple zones. [ 1 ]
An SVRS can be installed as an independent system or can be incorporated as part of the pool pump. Mechanical devices which let air into pump to ease the vacuum when entrapment or blockage is sensed by device. [citation needed] Electro-mechanical devices that shut off pump when blockage/entrapment is sensed. [citation needed]