Ball Valve


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Related to Ball Valve: Plug valve

ball valve

[′bȯl ‚valv]
(mechanical engineering)
A valve in which the fluid flow is regulated by a ball moving relative to a spherical socket as a result of fluid pressure and the weight of the ball.

Ball Valve

 

a valve in which the seal is effected by a ball. The spherical surface of the ball is pressed against a conical seat that forms the transmission path of a pipe, thus providing a hermetic seal in the channel. Globular check valves—a type of ball valve—are very common. The ball in such valves is pressed against the seat by the action of a spring or by the ball’s own weight (in the latter case, the seat axis is vertical); the mechanism allows a gas or liquid to flow only in one direction when the pressure of the flow overcomes the force created by the spring or weight of the ball. Globular check valves with solid metal balls are used for inside diameters up to 15 mm; similar valves with hollow, rubber-coated balls are used for inside diameters up to 100 mm. Valves with balls that have a through hole are used as shut-off and regulating devices for inside diameters up to 1,000 mm. Such valves are opened and closed by rotation of the ball through 90°.

ball valve

ball valve
A valve for regulating the flow of fluids by a movable ball which fits in a spherical seat.
References in periodicals archive ?
Delivery of global and Chinese ball valve market, 2010-2020 research report will take 2-3 working days once order is placed.
Selected 8P Series Ball Valves feature 2-way brass full port valves and a choice of double acting actuators or spring return actuators available with stainless steel stems.
Refit the new ball valve and washers and S tighten all nuts before reconnecting the water inlet pipe to it.
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The SM Series quarter turn ball valve features a simple 1 Clip-pin actuator mounting system which offers outstanding stability and eliminates the cost, weight and installation time required by other valve-actuator mounting systems which typically require brackets and multiple fasteners.
Available 9 models, each with a wide range of configurations and options, 8E Ball Valves can be easily adapted to the individual requirements of OEM's, as well as commercial and industrial users.
The internal design of the series 727 ball valve has been streamlined to provide superior flow characteristics, offering improved throughput," explains Dan Christian, Victaulic director oil, gas, chemical and power markets EMEAI.
Since then, S-E ball valves have been widely used in all over the world with good results till 2007 when Edwards Lifesciences discontinued production of the S-E valve.
The standard discharge is a 2", close mounted, full port ball valve, and an optional end discharge arrangement is available.
equalizes pressure imbalances via a new ball valve and pressure-compensator valve.