Two-stage flow restrictor valve assembly

Details Two-stage flow restrictor valve assembly Two-stage flow restrictor valve assembly

1981-02-23

1983-03-01

Shepperd, John W.

Pipes and tubular conduits

With flow regulators and/or baffles

Restrictors

137503, 62210, 138 45, F16K 31163, F15D 102

Patent

active

043752284

ABSTRACT:
A two-stage flow restrictor valve assembly is disclosed that is adapted to be inserted in a fluid line to reduce the flow therethrough in two stages. The valve assembly is compactly arranged and comprises a minimum of parts including a valve body, a flow restrictor tube, a power rod, a movable valve assembly operated by the power rod against the spring and a single O-ring for sealing.

REFERENCES:
patent: 800914 (1907-07-01), Haley
patent: 920716 (1909-05-01), Beckman
patent: 1044053 (1912-11-01), H uxford
patent: 2318962 (1943-05-01), Parker
patent: 2816572 (1957-12-01), Pratt
patent: 2984261 (1961-05-01), Kates
patent: 3180107 (1965-04-01), Baker et al.
patent: 3296816 (1967-01-01), Weibel et al.
patent: 3482415 (1969-12-01), Trask
patent: 3642030 (1972-02-01), Amick
patent: 3973410 (1976-08-01), Putman et al.
patent: 4009592 (1977-03-01), Boerger

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