three-port valve

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• 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

• Solenoid valve — A solenoid valve is an electromechanical valve for use with liquid or gas. The valve is controlled by an electric current through a solenoid: in the case of a two port valve the flow is switched on or off; in the case of a three port valve, the… …   Wikipedia

• Port Talbot Railway 0-8-2T (Cooke) — Port Talbolt Railway 0 8 2T (Cooke) Power type Steam Builder Cooke Locomotive and Machine Works, USA Build date 1899 Total produced 2 Configuration 0 8 2T Gauge 4 ft 8 1⁄2 …   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

• Ball valve — A ball valve (like the butterfly valve and plug valve are one of the family of valves called quarter turn valves ) is a valve that opens by turning a handle attached to a ball inside the valve. The ball has a hole, or port, through the middle so… …   Wikipedia

• Plug valve — Plug valves [American Petroleum Institute Standards: API 6D Pipeline Valves ; API STD 599 Metal Plug Valves ] are valves with cylindrical or conically tapered plugs which can be rotated inside the valve body to control flow through the valve. The …   Wikipedia

• Globe valve — A Globe valve is a type of valve used for regulating flow in a pipeline, consisting of a movable disk type element and a stationary ring seat in a generally spherical body. [cite web url = http://www.answers.com/topic/globe valve title = Globe… …   Wikipedia

• two-port — «TOO PRT, POHRT», adjective. 1. having two ports. 2. of or having to do with a type of two cycle internal combustion engine, common in marine use, in which the crankcase admission port of the three port type of engine is dispensed with, and for… …   Useful english dictionary

• 2-stroke power valve system — The 2 stroke power valve system is an improvement to a conventional two stroke engine that gives a high power output over a wider RPM range. Operation of a two stroke engine A stroke is the action of a piston travelling the full length of its… …   Wikipedia

• Directional control valve — Directional control valves are one of the most fundamental parts in hydraulic machinery. They allow fluid flow into different paths from one or more sources. They usually consist of a piston inside a cylinder which is mechanically or electrically …   Wikipedia

• ratchet valve — A valve normally used in the wing flap system to retain pressure in the flap actuating cylinder, thereby preventing the flaps from drooping while they are up when the airplane is on the ground and from creeping while they are down when the… …   Aviation dictionary