| 摘要 |
A knife gate valve utilizes a sliding, beveled panel positioned between two aligned conduits. Its usage is either fully opened or fully closed. The flange connections are bolted to one another for ease of disassembly and removal (or installation) of wear components, a seat component, and/or sealing components. The wear and seat components have hard , abrasion resistant coatings applied where in contact with the fluid medium to enhance service life. The primary use is in heavy industrial transportation pipelines where the medium is extremely abrasive, corrosive, or may contain abrasive materials (such as sand, rock, diamond, etc.).
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