Fluid handling – Processes – Cleaning – repairing – or assembling
Patent
1993-08-27
1995-12-12
Walton, George L.
Fluid handling
Processes
Cleaning, repairing, or assembling
2940201, 29890121, 137315, 137318, 228 21, 2281121, 228119, 251214, 277 72FM, F16K 4300, F16K 4102
Patent
active
RE0351164
ABSTRACT:
A method and apparatus are provided for injecting sealant into a packing assembly chamber surrounding a valve stem 11 of a valve 2 without venting the pressure within the valve 2. A cylindrical body 60 is frictionally welded to the exterior of the valve 2 adjacent the packing assembly chamber. A drill bit is passed into the body 60 and through a set of packing seals 87. An opening is completed into the packing chamber. As the drill bit is withdrawn from the body 60, a second valve 70 is manually "closed" to isolate the packing chamber from the drill bit and prevent the escape of pressurized fluid when the drill bit is removed from the seals 87. Thereafter, a device for injecting sealant is attached to the body 60 and the valve 70 is "opened" to allow the sealant to flow into the packing chamber.
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Catalog published by Ramforce Services Ltd., Old Mill Road, Avoch, Ross-shire, Scotland.
Seastud catalog published by Ramforce Services Ltd., Kirkhill Place, Kirkhill Ind Est. Aberdeen, Scotland.
Batson Donald R.
Butler Johnny L.
Metzger Robert E.
Wakeland Richard
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