an operated valve

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• Air operated valve — An Air Operated Valve is a type of power operated valve that uses air pressure against a piston or diaphragm to produce linear or circular movement to operate a valve …   Wikipedia

• manually operated valve — rankinio valdymo skirstytuvas statusas T sritis automatika atitikmenys: angl. manually operated valve vok. Muskelkraftbetätigte Ventil, n rus. клапан с ручным управлением, m pranc. distributeur à commande manuelle, m …   Automatikos terminų žodynas

• valve principle — The original method of ABS control using an electrically operated valve to control the air pressure …   Dictionary of automotive terms

• valve rod — valve rod, the rod or spindle by which a valve is operated; the stem of a valve …   Useful english dictionary

• 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 audio amplifier - technical — Circuitry and performance Characteristics of valves Valves are very high input impedance (near infinite in most circuits) and high output impedance devices. They are also high voltage / low current devices.While valves themselves are described… …   Wikipedia

• valve box — Steam Steam (st[=e]m), n. [OE. stem, steem, vapor, flame, AS. ste[ a]m vapor, smoke, odor; akin to D. stoom steam, perhaps originally, a pillar, or something rising like a pillar; cf. Gr. sty ein to erect, sty^los a pillar, and E. stand.] 1. The… …   The Collaborative International Dictionary of English

• valve chest — Steam Steam (st[=e]m), n. [OE. stem, steem, vapor, flame, AS. ste[ a]m vapor, smoke, odor; akin to D. stoom steam, perhaps originally, a pillar, or something rising like a pillar; cf. Gr. sty ein to erect, sty^los a pillar, and E. stand.] 1. The… …   The Collaborative International Dictionary of English

• Valve job — A valve job is an operation which is performed on any four stroke cycle, internal combustion engine, the purpose of which is to clean up the mating surfaces of the poppet valves that control the intake and exhaust of the air/fuel mixture that… …   Wikipedia

• valve lapper — a special automotive tool for grinding (lapping) valves into valve seats; some types are power operated, thus allowing faster grinding compared with standard suction type valve grinding tools …   Dictionary of automotive terms

• 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