Lubricated split plug valve
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 29, 1984
Issued Date -
N/A
app pub date -
Feb 25, 1983
filing date -
Dec 12, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A lubricated split plug valve includes a valve body defining a chamber with fluid ports therethrough. A valve stem is rotatably mounted in the body and engages a split cylindrical valve member. The valve member includes a cylindrical passage with first and second inlets. The valve member includes a pair of core halves defined along an oblique plane passing through the cylindrical passage. Identical grooves for conveying sealant/lubricant to the plug/body interface are fabricated on the outer peripheral surfaces of the core halves with portions that substantially surround one of the passage inlets defined in the particular core half. Each groove also includes a continuous portion encircling the remaining outer periphery of each core half. Each groove is in fluid communication with a reservoir wherein lubricant may be introduced from a source into the groove. A piston is in each reservoir and biased under the influence of line pressure and gravity forces. A first alternate plug valve member includes a peripheral groove that is semicircular with one arm or extension beneath the passage inlets cooperating with body grooves to introduce sealant/lubricant at the interface.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully