| 摘要 |
A ring plate valve for piston compressors includes several individual plastic ring plates (3) as closing organs, which are concentrically arranged in relation to each other between valve seat (1) and catcher (2). The diameter of individual steel spiral springs, that are distributed on the circumference for the purpose of supplying the ring plates (3) with spring force, is essentially equally large as the width of the ring plates (3), thereby allowing for the realization of a small spring length. On the side of the catcher, the spiral springs (4) are supported and guided inside individual spring cups (7), preferably of abrasion-resistant plastic.
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