hydrostatic valve

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• Hydrostatic balance — Balance Bal ance (b[a^]l ans), n. [OE. balaunce, F. balance, fr. L. bilanx, bilancis, having two scales; bis twice (akin to E. two) + lanx plate, scale.] 1. An apparatus for weighing. [1913 Webster] Note: In its simplest form, a balance consists… …   The Collaborative International Dictionary of English

• Hydrostatic bellows — Bellows Bel lows, n. sing. & pl. [OE. bely, below, belly, bellows, AS. b[ae]lg, b[ae]lig, bag, bellows, belly. Bellows is prop. a pl. and the orig. sense is bag. See {Belly}.] An instrument, utensil, or machine, which, by alternate expansion and… …   The Collaborative International Dictionary of English

• Hydrostatic loop — A hydrostatic loop, though not often used in plumbing practice, is an arrangement of pipes formed into a vertical loop to prevent backflow of water within the plumbing potable water system. Since a siphon has a maximum height that it can work… …   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

• Balance valve — Balance Bal ance (b[a^]l ans), n. [OE. balaunce, F. balance, fr. L. bilanx, bilancis, having two scales; bis twice (akin to E. two) + lanx plate, scale.] 1. An apparatus for weighing. [1913 Webster] Note: In its simplest form, a balance consists… …   The Collaborative International Dictionary of English

• Hydraulic valve — Hydraulic Hy*drau lic, a. [F. hydraulique, L. hydraulicus, fr. Gr. ?, ?, a water organ; y dwr water + ? flute, pipe. See {Hydra}.] Of or pertaining to hydraulics, or to fluids in motion; conveying, or acting by, water; as, an hydraulic clock,… …   The Collaborative International Dictionary of English

• Double check valve — A double check valve or double check assembly (DCA) is a backflow prevention device designed to protect water supplies from contamination. It is also a valve used in air brake systems on heavy trucks. Usage in Water Supply: In the case of usage… …   Wikipedia

• Chemigation valve — A chemigation valve is an apparatus designed to protect water supplies from agricultural chemicals used during chemigation, the application of chemicals such as fertilizers and pesticides through irrigation water. Most chemigation valves consist… …   Wikipedia

• Construction methods for private pools — There are several distinct construction methods for private (home) swimming pools, which are typically called concrete , vinyl liner , and fiberglass . The term vinyl liner pool describes the method of lining the interior, not the construction… …   Wikipedia

• Torpedo — The modern torpedo (historically called an automotive, automobile, locomotive, or fish torpedo) is a self propelled explosive projectile weapon, launched above or below the water surface, propelled underwater toward a target, and designed to… …   Wikipedia

• Robert Whitehead — Infobox Engineer image size = caption = Robert Whitehead (right) with a battered test torpedo, Rijeka (Croatia), c.1875 name = Robert Whitehead nationality = birth date = birth date|1823|1|3|df=y birth place = Bolton, Greater Manchester, England …   Wikipedia