Damper valve having an adjustable seat
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Sep 26, 2000
Grant Date -
N/A
app pub date -
Feb 4, 1999
filing date -
Feb 4, 1999
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A damper valve includes a base, a valve blade pivotally mounted on the base and two serially arranged valve seats. Each valve seat comprises adjustable valve seat portions on opposite sides of a pivot axis of the valve blade, the valve seat portions being positioned on opposite sides of the blade. Each valve seat portion includes a stationary member fixed to the base, an adjustable element movable relative to the stationary member, and bolts fixing the adjustable element to the stationary member. Adjustment devices are provided for moving each adjustable element toward the valve element to provide a precise fit along the entire length of the valve seat. The valve seats and the valve blade define an annulus which can contain gas at a higher pressure than the fluid controlled by the valve, so that none of the controlled fluid flows past the valve.
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