| 摘要 |
A valve for a product-guiding processing plant comprises a housing, in which a closure member and a closure member seat are arranged. The closure member seat is provided on a cylindrical inner wall of a housing portion of the housing. The closure member has a sealing element, which cooperates in a sealing manner with the closure member seat in a closed position of the closure member. The closure member is displaceable in the direction of a longitudinal axis of the housing between an open position, in which the sealing element is distanced from the closure member seat, and the closed position. The valve comprises a scraper for detaching product residues from the inner wall of the inner cylindrical housing portion, the scraper being arranged ahead of the sealing element, as viewed in the direction of closure of the closure member from the open position into the closed position, and being moved along and against the inner wall of the inner cylindrical housing portion when the closure member is displaced from the open position into the closed position.
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