摘要 |
A valve device comprising a body (1), a closure member (2) operated by a shaft (3) guided through a neck (4) in the body (1), and a liner (5) provided with a flange (6) extending along part of the length of the neck (4). The sealing contact between the shaft and the bore may be improved by means of a clamping assembly (7, 8, 9) positioned around the flange (6) in a space (10) in the body (1). The size of the clamping assembly (7, 8, 9) is such that it exerts a force on the flange (6) and thereby on the shaft (3). The clamping assembly (7, 8, 9) is radially and/or tiltably movable in said space (10) relative to the body (1). Said device is particularly suitable for butterfly valves for use with corrosive and/or delicate liquids such as liquid chemicals and liquid foodstuffs. |
申请人 |
KSB AKTIENGESELLSCHAFT;LAULHE, RENE;GUIROY, PATRICK;GARRIGUES, JEAN-CLAUDE;DUBOIS, JEAN-PAUL;WATTIGNIER, CLAUDE |
发明人 |
LAULHE, RENE;GUIROY, PATRICK;GARRIGUES, JEAN-CLAUDE;DUBOIS, JEAN-PAUL;WATTIGNIER, CLAUDE |