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US 2014/0151592 A1Published application
Butterfly valve and method of checking for leaks in the same
AssigneeSamsung Display Co., Ltd.
InventorJae-Dong Ha
Life of this patent
Estimating the term…
Abstract
A butterfly valve is disclosed. In one aspect, the butterfly valve includes a pipe-shaped housing, a valve disk rotatably arranged within the pipe-shaped housing, a space forming member formed along an outer circumference of the valve disk, and a leak check port provided in the housing and configured to be connected to a space between the space forming member and the housing.
Claims20
A butterfly valve comprising:
- a pipe-shaped housing;
- a valve disk rotatably arranged within the pipe-shaped housing;
- a space forming member formed along an outer circumference of the valve disk;
- and
- a leak check port formed in the pipe-shaped housing and configured to be connected to the space between the space forming member and the pipe-shaped housing.
2 more elements
A method of checking for a leak in a butterfly valve comprising a pipe-shaped housing and a valve disk rotatably arranged within the pipe-shaped housing, the method comprising:
- providing a space forming member formed along an outer circumference of the valve disk;
- providing a leak check port in the pipe-shaped housing so that the leak check port is connected to the space between the space forming member and the pipe-shaped housing;
- closing the butterfly valve by the rotation of the valve disk;
- connecting one end of the leak check port to a leak detector;
- creating a substantially vacuum state, with the use of the leak detector, within the space between the space forming member and the pipe-shaped housing;
- spraying a test gas toward the space forming member;
- and
- detecting the test gas with the use of the leak detector.
5 more elements
Dependencies are inferred from the claim text.