Look up: ball-valve

1. ball valve
   [n] - any valve that checks flow by the seating of a ball
   Found on http://www.webdictionary.co.uk/definitio
   
   
2. Ball Valve
   Valve that contains a sphere with a hole through it, the “ball� can be rotated thus turning the valve on or off, similar to a plug valve in function.
   Found on http://www.encyclo.co.uk/visitor-contrib
   
   
3. ball valve
   a flow-control device employing a ball with a rotating mechanism to open or close the tubing medium.
   Found on http://www.encyclo.co.uk/visitor-contrib
   
   
4. ball valve
   Any of a variety of prosthetic cardiac valve's comprised of a ball within a retaining cage affixed to the orifice; when appropriately sized, used in aortic, mitral, or tricuspid position. ... (05 Mar 2000) ...
   Found on http://www.mondofacto.com/facts/dictiona
   
   
5. ball valve
   noun any valve that checks flow by the seating of a ball
   Found on http://wordnetweb.princeton.edu/perl/web
   
   
6. Ball Valve
   A ball valve is a type of valve comprising a single or multiple balls which in all cases are caged, and rises only slightly from its seat. This type of valve is especially useful for small-capacity and high-speed pumps.
   Found on http://www.probertencyclopaedia.com/brow
   
   
7. ball valve
   Type: Term Definitions: 1. any of a variety of prosthetic cardiac valves comprising a ball within a retaining cage affixed to the orifice; when appropriately sized, used in aortic, mitral, or tricuspid position.
   Found on http://www.medilexicon.com/medicaldictio
   
   
8. ball valve
   Valve that works by the action of external pressure raising a ball and thereby opening a hole
   Found on http://www.talktalk.co.uk/reference/ency
   
   
9. Ball valve
   A `ball valve` is a valve with a spherical disc, the part of the valve which controls the flow through it. The sphere has a hole, or port, through the middle so that when the port is in line with both ends of the valve, flow will occur. When the valve is closed, the hole is perpendicular to the ends...
   Found on http://en.wikipedia.org/wiki/Ball_valve
   
   
10. ball-and-seat valve
    a device used to restrict fluid flow to one direction. It consists of a polished sphere, or ball, usually or metal, and an annular piece, the seat, ground and polished to form a seal with the surface of the ball. Gravitational force or the force of a spring holds the ball against the seat. Flow in the direction of the force is presented, while flow in in the opposite direction overcomes the force and unseats the ball.
    Found on http://www.encyclo.co.uk/visitor-contrib