Title:
DIFFERENTIAL PRESSURE MEASURING APPARATUS
Document Type and Number:
Japanese Patent JP3223950
Kind Code:
B2
Abstract:
PURPOSE: To prevent leakage of an encapsulated liquid due to corrosion by disposing a double stage gaskets between a pressure receiving capsule unit and a cover flange thereby preventing the outer atmosphere from intruding.
CONSTITUTION: A first gasket 21 is disposed between a pressure receiving capsule unit 1 and a cover flange 2 in order to prevent leakage of an encapsulated liquid 6. A second gasket 22 is disposed between the pressure receiving capsule unit 1 and the cover flange 2, on the outside of the first gasket 21, in order to prevent intrusion of outer atmosphere into the first gasket 21 side. Although the corrosive foreign matters in the atmosphere try to adhere to the sealing part of the encapsulated liquid 6 between the pressure receiving capsule unit 1 and the cover flange 2, the second gasket 22 disposed between the pressure receiving capsule unit 1 and the cover flange 2 on the outside of the first gasket 21 prevents intrusion of the outer atmosphere into the first gasket 21 side.
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Inventors:
Tadao Mikami
Ryobon Fujishima
Tatsuo Miyazawa
Tamaki Ishikawa
Ryobon Fujishima
Tatsuo Miyazawa
Tamaki Ishikawa
Application Number:
JP32724594A
Publication Date:
October 29, 2001
Filing Date:
December 28, 1994
Export Citation:
Assignee:
Yokogawa Electric Corporation
International Classes:
G01L13/02; (IPC1-7): G01L13/02
Domestic Patent References:
| JP6229865A | ||||
| JP6042711U | ||||
| JP5896160U |