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A butterfly valve having a two piece body, an annular seat carried in the body and a disk mounted in the body for rotation within the seat. An indicator plate mounted at one end of the body and a valve actuator attached to the disk shaft and overlying the plate with a detent arrangement for indicati

A butterfly valve having a two piece body, an annular seat carried in the body and a disk mounted in the body for rotation within the seat. An indicator plate mounted at one end of the body and a valve actuator attached to the disk shaft and overlying the plate with a detent arrangement for indicating valve position. Outlet nozzles carried on the disk with a flow path from the exterior of the valve to the nozzles for introducing fluid flow into the pipeline, with check valves in the valve body and in the nozzles. A special disk configuration for reducing damage to the disk edge.

대표청구항 ▼

In a butterfly valve having a body, an annular seat carried in said body, and a disk mounted in said body for rotation within said seat, the improvement comprising in combination: an indicator plate mounted at one end of said body; said disk having a first shaft projecting through said body and plat

In a butterfly valve having a body, an annular seat carried in said body, and a disk mounted in said body for rotation within said seat, the improvement comprising in combination: an indicator plate mounted at one end of said body; said disk having a first shaft projecting through said body and plate; and a valve actuator attached to said first shaft and overlying said plate; said plate having a plurality of detent openings arranged in an arc, said actuator having a spring loaded detent member for engaging said detent openings as said actuator rotates with said shaft and disk; said body comprising two semi-circular half sections with flanges at each end of each half section with screw means for clamping said half sections together at said flanges, and at least one pin in each clamped pair of flanges parallel with and spaced from said screw means for maintaining said half sections in desired alignment during successive unclamping and clamping operations for valve seat replacement regardless of any play in the opening for the screw means.