Fluid handling – Systems – Multi-way valve unit
Patent
1998-06-18
1999-08-24
Fox, John
Fluid handling
Systems
Multi-way valve unit
251127, F16K 324
Patent
active
059412810
ABSTRACT:
A fluid pressure reduction device with low noise generation. A stack of annular disks with fluid passageways formed of inlet slots, outlet slots, and interconnecting plenums. Selectively stacking and orienting the annular disks along with an asymmetric slot pattern creates the desired fluid passageways without creating an uninterrupted axial fluid flow path. High recovery inlet stages are in fluid communicating series with low recovery outlet stages and the combination provides a high performance fluid pressure reduction device with low noise generation.
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Article--"Coefficients and Factors Relating to the Aerodynamic Sound Level Generated by Throttling Valves", H.D. Baumann, Noise Control Engineering Journal, Jan. Feb. 1984, pp. 6-11.
Anderson Michael M.
Baumann Hans D.
Gethmann Douglas P.
Koester David J.
Schafbuch Paul J.
Fisher Controls International Inc.
Fox John
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