Device providing an effective seal for a spherical rotary slide valve
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United States of America Patent
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-
Apr 16, 1985
Grant Date -
N/A
app pub date -
Jun 7, 1983
filing date -
Jun 7, 1982
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A ball-type valve comprises a rotary valve member in a housing or valve body whose ducts communicating with the passage in the valve member are provided with respective sealing devices. These sealing devices comprise elastomeric formable rings received in blind recesses around the respective ducts and communicating therewith by orifices opening behind each deformable ring so that the fluid pressure in the respective duct under pressure will urge the deformable ring against the annular gasket and press the gasket against the rotary valve member.
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