What is ball valve?

  • (noun): Any valve that checks flow by the seating of a ball.

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 of the valve, and flow is blocked. The handle or lever will be inline with the port position letting you "see" the valve's position. The ball valve, along with the butterfly valve and plug valve, are part of the family of quarter turn valves.

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Some articles on ball valve:

Submarine - Life Support Systems
... At the bottom of the TDU is a large ball valve ... An ice plug is set on top of the ball valve to protect it, the cans atop the ice plug ... and the TDU is flooded and equalized with sea pressure, the ball valve is opened and the cans fall out assisted by scrap iron weights in the cans ...
Ball Valve - Images
... Super duplex ball valves Balls for alloy ball valves Nuts and bolts for incoloy valves Ball for a titanium ball valve Double block and bleed ball valve Lengthwise section of a ball valve ...
Flow Control Valve - Images
... Hastelloy ball valve Stainless steel gate valve Stainless steel gate valve Carbon steel Globe valve Hastelloy check valves Duplex ball valve Inconel gate valve Stainless steel wafer ...

Famous quotes containing the word ball:

    But the ball is lost and the mallet slipped long since from the hands
    Under the running tap that are not the hands of a child.
    Louis MacNeice (1907–1963)