Valve operated by a ball floating in a cistern.
any valve that checks flow by the seating of a ball
a flow valve with a round closure element and round seat that permits a tight shut off because of the uniform seal between the element and the seat
a rotational motion valve that uses a ball-shaped disk to stop or start fluid flow
a stop valve that is designed mostly for on/off service
A valve containing a rotating ball with a machined hole through it. It can be used for component isolation or limited regulation.
a shutoff valve of the packed type that incorporates a round, internal dynamic member, or "ball," and containing one or more through holes that connect the ports of the valve to each other. Also see packed valve.
A valve using a spherical closure element which is rotated through 90ยบ to open and close the valve.
A valve that uses a ball to seal against the seat.
A valve in which fluid flow is controlled by a ball with a hole drilled through it. In one position, fluid flows through the hole. When the valve is turned 90 degrees (1/4 turn) the hole is perpendicular to the flow and the ball stops the flow. Intermediate valve positions can be used to adjust the flow.
Valve used in switching manifolds to regulate the fuel flow. See also check valve; gate valve; nonrising-stem valve; plug valve; pressure-control valve; pressure reducing valve; pressure-regulating valve; rising-stem valve; thermal-relief valve. barrel See bbl. base terminal See pumping station 1
Valve operated by a floating ball. Designed to open and close with the rising or lowering water in a cistern.
A valve in which a pierced sphere rotates within the valve body to control the flow of fluids. The ball usually rotates within a set of sealing rings. The hole can be the same size as the pipe's internal diameter (referred to as full-ported) and thus allow for passage of pigs.
A simple non-return valve consisting of a ball resting on a cylindrical seat within a liquid passageway.
A valve which is closed by rotating a ball with a central hole through 90 degrees
A valve which modifies flow rates with rotary motion of the closure member, which is either a sphere with an internal passage or a segment of a spherical surface.
A device with a hollowed out ball inside which can be turned with an external handle to decrease or increase flow.
A type of valve in which a round ball rotates to turn the flow on and off. The ball has a hole through the center such that water flows when the hole is aligned parallel to the direction of flow. Back to glossary index.
Valve having a ball-shaped internal component with a hole through its center that permits water to flow through when aligned with the waterway.
A valve regulated by the position of a free-floating ball that moves in response to fluid or mechanical pressure.
A valve in which a ball regulates the opening by its rise and fall due to fluid pressure, a spring, or its own weight.
A ball valve (like the butterfly valve, one of a 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 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 of the valve, and flow is blocked.