Fully piggable differential pressure actuated valve with variable restrictor
Number of patents in Portfolio can not be more than 2000
United States of America
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Jan 14, 2025
Grant Date -
Apr 18, 2024
app pub date -
Oct 17, 2023
filing date -
Oct 17, 2023
priority date (Note) -
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Abstract
A valve system for controlling a flow of material includes a pipeline including an upstream portion a downstream portion. The system includes a variable flow restrictor configured for providing a restrictive orifice within the pipeline and creating a pressure differential in the flow of material high-pressure material in the upstream portion and low-pressure material in the downstream portion. The system includes a low-pressure tube connected to the downstream portion and a low-pressure chamber connected to the tube and receiving low-pressure material. The chamber includes a secondary flapper configured for selectively blocking the tube. The system includes a primary flapper disposed between the upstream portion and the low-pressure chamber and configured to be disposed in one of a first and second position. The flapper is held in the first position by the pressure differential. The flapper moves to the second position blocking the pipeline when a leak occurs.
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