Gate-type, side-ported, line blind valve
AssigneeITT Corporation
InventorRichard L. Heinecke
Life of this patent
Estimating the term…
Abstract
A walled body, has apertures formed in front and rear walls thereof in which resilient seats are set. The latter sealingly engage a plate-type gate, centrally apertured for alignment with the seats, to define a portway through which to convey pipeline media. The gate is movable through the body to open and close the portway, and the body has sealing at the top and bottom to define thereof a pressure-containing shell. Further, sides of the body have openings formed therein, sealed off by removable plates. Exposure of the side openings allow for the venting of any seat leakage to the atmosphere, and inhibit any chance of solids buildup around the seats. The body is boltable to an upstream pipe of a pipeline, or for interpositioning in a pipeline.
Claims12
A gate-type, line blind valve, comprising:
- a body having spaced-apart, front and rear walls, and side walls joined to said front and rear walls;
- wherein
- all said walls comprise means for cooperatively defining a valve shell having an interior;
- and
- inlet and outlet fluid apertures in said front and rear walls;
- resilient seats set in said apertures;
- gating means interposed, and movable, between said front and rear walls, for (a) sealingly engaging said seats, and (b) exposing said apertures to, and occluding said apertures from, the ambient;
- and wherein
- said side walls have porting means for exposing said interior of said shell to, and occluding said interior from, the ambient;
- and
- said porting means comprises openings in said side walls in substantial alignment with said apertures for allowing any fluid spillage within said interior of said shell to vent to the ambient, and closures removably fixed to said side walls for occluding said porting means.
A gate-type, line blind valve, comprising:
- a body having spaced-apart, front and rear walls, and side walls joined to said front and rear walls;
- wherein
- all said walls comprise means for cooperatively defining a valve shell having an interior;
- inlet and outlet fluid apertures in said front and rear walls;
- resilient seats set in said apertures;
- gating means interposed, and movable, between said front and rear walls, for (a) sealingly engaging said seats, and (b) exposing said apertures to, and occluding said apertures from, the ambient;
- and wherein
- said side walls have porting means for exposing said interior of said shell to, and occluding said interior from, the ambient;
- said porting means comprises openings in said side walls and being in substantial alignment with said apertures for allowing any fluid spillage within said interior of said shell to vent to the ambient, and closures removably fixed to said side walls;
- said closures comprise plates and means for releasably fastening said plates over, and in closure of, said openings;
- said fastening means comprises clamps (a) fixed to said side walls, and (b) engageable with said plates;
- and
- said clamps are pivotably mounted to said side walls and have camming surfaces for forcing said plates fast against said side walls.
Dependencies are inferred from the claim text.