Butterfly valves
0 Assignments
0 Petitions
Accused Products
Abstract
A butterfly valve for handling materials where the temperature of the materials flowing through the butterfly valve can exceed the breakdown temperature of the sealing member with the butterfly valve inhibiting contact of hot transportable materials with the sealing member to isolate the hot transportable materials from the sealing member. Cooling conduits maintain at least portions of the valve that contacts the sealing member at a temperature below the breakdown temperature of the sealing member to prevent seal failure.
6 Citations
20 Claims
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1-15. -15. (canceled)
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16. The method of intermittent delivery of conduit transportable materials through a valve that includes portions that have a breakdown temperature that is less than the temperature of the transportable materials comprising the steps of:
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pivoting a disk to a closed condition; expanding an expandable seal until the expandable seal contacts only a portion of a rim of the disk; directing a cooling fluid through at least one cooling conduit in the rim of the disk to maintain the temperature of the portion of the rim that contacts the expandable seal at a temperature that is below a breakdown temperature of the expandable seal. - View Dependent Claims (17, 18, 19, 20)
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Specification