Valves and valve actuation – With material guide or restrictor – Baffle or zigzag flow restrictor
Patent
1994-08-26
1996-12-31
Rivell, John
Valves and valve actuation
With material guide or restrictor
Baffle or zigzag flow restrictor
138 44, F16K 4714, F15D 106
Patent
active
055886353
ABSTRACT:
A velcoity diffuser having a conical configueration is secured in the interior of a conduit conducting a flow of liquid to increase the velocity and decrease the pressure of an annular layer of the liquid flow adjacent the interior surface of the conduit while decreasing the velocity and increasing the pressure of a remaining portion of the liquid flow within the annular layer. The velocity diffuser employed in a conduit upstream from a butterfly valve diffuses high velocity flow of the liquid around the periphery of the valve and reduces vibration of the butterfly valve in its open position and cavitation downstream from the valve and thereby reduces the noise heard outside the valve housing.
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Keith E. Lindsey, Ph.D., Design Parameters For Multijet Sleeve Valves With Conical Velocity Diffusers, Lindsey Fabricators, Inc. Valve Division, Azusa, California, USA, Jan. 1994, pp. 1-7.
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