Low noise valve trim

Details Low noise valve trim Low noise valve trim

1975-01-08

1976-11-09

Rosenthal, Arnold

Fluid handling

Systems

Multi-way valve unit

13762538, F16K 4706

Patent

active

039904750

ABSTRACT:
A skirt, containing a number of spaced apart helical grooves along its outer longitudinal surface and an array of spaced apart perforations therein, is attached at one of its ends to one end of a plug of a cage valve. This perforated multi-helical grooved skirt provides a noise attenuating affect on a fluid as it flows through the valve. This skirt construction allows a portion of the fluid to flow through the grooves and across jets of fluid flowing through and between perforations in the wall of the skirt and in the valve cage to thereby create turbulence in the combined fluids. The grooves are formed between lands that have sharp outer edges, which lands continuously clean foreign matter from an inner bore wall portion of the cage as the unitary plug and skirt is moved between an open and closed position.

REFERENCES:
patent: 2928424 (1960-03-01), Horton et al.
patent: 3428086 (1969-02-01), Glasgow
patent: 3469591 (1969-09-01), Odendahl
patent: 3780767 (1973-12-01), Borg
patent: 3813079 (1974-05-01), Baumann
patent: 3821968 (1974-07-01), Barb

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