Fluid handling – Systems – Flow path with serial valves and/or closures
Patent
1986-10-06
1987-05-05
Chambers, A. Michael
Fluid handling
Systems
Flow path with serial valves and/or closures
251 38, 251 43, 251291, 251340, 251346, F16K 3112
Patent
active
046623957
ABSTRACT:
A flushing valve arrangement for controlling the flow of a pressurized flushing liquid includes a housing unit including an inlet and an outlet for the flushing liquid and a housing which bounds a flow passage that connects the inlet with the outlet. The housing is outwardly spaced from the outlet to bound therewith an annular channel which surrounds the outlet and opens into a communication region of the flow passage. A flushing valve unit is interposed in the flow passage downstream of the communication region and controls the flow of the flushing liquid from the inlet to the outlet. An externally actuatable shut-off valve unit is integrated into the arrangement and includes a shut-off sleeve surrounding the outlet and movable into and out of the annular channel toward and away from its closing position in which it extends into the communication region of the flow path and prevents the flushing liquid from flowing from the inlet toward the flushing valve unit. The shut-off valve component is thus functionally independent of the operating parts of the valve arrangement. The flushing valve arrangement can be constructed as an angular fixture.
REFERENCES:
patent: 599462 (1898-02-01), Van Shaik
patent: 747468 (1903-12-01), Nethery
patent: 2874931 (1959-02-01), Baker et al.
Chambers A. Michael
Georg Rost & Sohne Armaturenfabrik GmbH & Co. KG
Teltscher Erwin S.
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