Butterfly valve flow control device

Details Butterfly valve flow control device Butterfly valve flow control device

F - Mech Eng,Light,Heat,Weapons

16

K

F16K 1/22 (2006.01) F16K 27/02 (2006.01)

Patent

CA 2681066

A control valve assembly that utilizes a butterfly valve having a valve body and a valve disk movable between a closed position and an open position. The control valve assembly includes a flow control device positioned downstream from the butterfly valve. The flow control device includes a series of teeth spaced by a series of flow control channels such that as the valve disk moves from the seated position to the fully open position, the outer sealing edge of the valve disk passes over the series of teeth to gradually expose the flow control channels. The control device aids in reducing cavitation, offers reduced dynamic torque and allows the control valve assembly to be inserted between an inflow pipe and an outflow pipe.

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