needle-valve seat

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• Needle valve — Giffard steam water injector (B needle valve). A needle valve …   Wikipedia

• needle valve — /ˈnidl vælv/ (say needl valv) noun a valve with a needle like part, a fine adjustment, or a small opening, especially a valve in which the opening is controlled by a needle like or conical point which fits into a conical seat …  

• needle valve — noun : a valve consisting essentially of a slender pointed rod or needle fitting into a conoidal seat and capable of fine adjustment …   Useful english dictionary

• needle valve — Mach. a valve with a needlelike part, a fine adjustment, or a small opening, esp. a valve in which the opening is controlled by a needlelike or conical point that fits into a conical seat. [1900 05] * * * …   Universalium

• 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

• seat — [1] A surface upon which another part rests or seats. Example: valve seat is matched surface upon which valve face rests. [2] Minor wearing of the piston ring surface during initial use. Rings then fit or seat properly against the cylinder wall.… …   Dictionary of automotive terms

• valve — A device used to either open or close an opening to allow or prevent the flow of a liquid or gas from one place to another. There are many different types. See ABS relay valve accumultor valve air valve carburetor air control valve air gulp valve …   Dictionary of automotive terms

• needle point valve — Type of valve having a needle point plug and a small seat orifice for low flow metering …   Dictionary of automotive terms

• 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

• viton-tipped needle — Special inlet valve carburetor needle with a hardened rubber tip. Viton tipped needles are resistant to dirt and conform to the seat even at low sealing pressures …   Dictionary of automotive terms