Fluid handling – With cleaner – lubrication added to fluid or liquid sealing... – Liquid supplied at valve interface
Patent
1992-12-14
1994-08-30
Hepperle, Stephen M.
Fluid handling
With cleaner, lubrication added to fluid or liquid sealing...
Liquid supplied at valve interface
251328, F16K 336
Patent
active
053418352
ABSTRACT:
A lubrication system for the block and bleed valve seat of a gate valve. Lubrication is provided to the seat through tubing which communicates with the exterior of the gate valve to supply the lubricant and the interior channels of the valve seat. Seals in the valve seat maintain the lubricant within the interior channels of the seat. The lubrication system allows the user to test each seat for integrity without exposing the entire valve to atmosphere by increasing lubricant pressure through the valve seat.
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Foster Valve Corporation
Hepperle Stephen M.
Sutherland Malcolm L.
Zarins Edgar A.
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