Ball valve — Ball Ball (b[add]l), n. [OE. bal, balle; akin to OHG. balla, palla, G. ball, Icel. b[ o]llr, ball; cf. F. balle. Cf. 1st {Bale}, n., {Pallmall}.] 1. Any round or roundish body or mass; a sphere or globe; as, a ball of twine; a ball of snow. [1913 … The Collaborative International Dictionary of English
Ball valve — Valve Valve, n. [L. valva the leaf, fold, or valve of a door: cf. F. valve.] [1913 Webster] 1. A door; especially, one of a pair of folding doors, or one of the leaves of such a door. [1913 Webster] Swift through the valves the visionary fair… … The Collaborative International Dictionary of English
ball valve — n. a valve that works by the action of a ball resting on the outlet hole: use of external pressure raises the ball and opens the hole; when the pressure is removed, the ball drops and closes the hole … English World dictionary
ball valve — ball′ valve n. mac a plumbing valve that regulates the flow of a fluid by means of a ball that moves into or out of the valve opening • Etymology: 1830–40 … From formal English to slang
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
ball valve — rutulinis vožtuvas statusas T sritis automatika atitikmenys: angl. ball valve vok. Kugelventil, n rus. шаровой клапан, m pranc. soupape à bille, f; soupape à boulet, f … Automatikos terminų žodynas
ball valve — valve in which a small ball regulates pressure … English contemporary dictionary
ball-valve action — the intermittent obstruction caused by a free or partially attached foreign body in a tubular or cavitary structure, as by a foreign body in a bronchus, a stone in a bile duct, or a tumor in the cardiac atrium. Ball valve action. Calculi… … Medical dictionary
ball valve — Mach. 1. a valve controlling flow by means of a ball pierced with an opening in one direction and fixed to rotate on a spindle at right angles to the opening. 2. any valve that checks flow by the seating of a ball. [1830 40] * * * … Universalium
ball valve — noun Date: 1839 a valve in which a ball regulates the aperture especially by its rise and fall due to fluid pressure, a spring, or its own weight … New Collegiate Dictionary
