High pressure water valve
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United States of America Patent
Stats
-
Apr 28, 1987
Grant Date -
N/A
app pub date -
Jul 2, 1985
filing date -
Jul 9, 1984
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A high pressure water valve (18) supplies water under very high pressure to nozzles (14) for cutting rock or concrete by water jets emitted from the nozzles. A valve plug (30,48) rotates in bearing rings (27) and cooperates with a valve bushing (22;45) of wear resistant high strength material to control the water supply to the nozzles via one or more valve openings (28;51) in said bushing or plug. High pressure water in a pressure opening (33;47) in respectively the plug or bushing forces the plug to sealingly occlude one or more valve openings (28;51) disposed diametrically opposite to said pressure opening.
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