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US 11,480,251 B2Granted
Centred butterfly valve
AssigneeKSB Aktiengesellschaft
InventorFabien Arnal
Life of this patent
Estimating the term…
Abstract
Valve comprising a body (2), a centred butterfly (1), mounted with the ability to rotate inside the body (2) from an open position revealing the passage to a closed position covering said passage, and a seal (3) arranged inside a housing which is delimited by the seat and by a face, opposite the seat in the closed position, of the butterfly, the seat and the face converging towards the inside in the axial direction. The seal (3) moves freely in the housing.
Claims11
A valve comprising:
- a body defining, by means of an annular internal seat, an internal area forming a passage with an axial direction,
- a centred butterfly mounted with the ability to rotate inside the body from an open position revealing the passage to a closed position covering said passage,
- a seal arranged inside a housing which is delimited by the seat and by a face, opposite the seat in the closed position, of the butterfly, the seat and the face converging towards each other in a direction of a rotational axis of the centred butterfly, characterized in that, in the closed position, the seal is free to move in its entirety in all directions inside the housing.
Dependencies are inferred from the claim text.