Butterfly valve seal retainer
AssigneeGeneral Electric Company
InventorsWilliam R. Spencer, Edwin K. Miller
Life of this patent
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Abstract
A butterfly valve comprises a butterfly vane including a radial notch. A seal groove is situated in the vane and a seal including tabs is disposed within the seal groove wherein the tabs are adapted to fit within the notch. The tabs are designed to bear against the sides of the notch. The notch is located on the high pressure side of the butterfly vane and in a position such that the butterfly housing limits the radial motion of the tabs when the valve is in the open position.
Claims9
A butterfly valve comprising:
- a butterfly vane including a radial notch;
- a seal groove in the vane;
- and
- a seal including tabs disposed within the seal groove wherein the tabs are adapted to fit within the notch.
A seal retention method for retaining a seal in a high pressure butterfly valve comprising the steps of:
- providing a rotatable vane located within a housing having a bore, the vane including a radial notch;
- providing a seal groove in the vane;
- and
- adapting tabs disposed within the seal groove to fit within the notch and capture the seal when the vane is in the bore of the housing.
Dependencies are inferred from the claim text.