| 摘要 |
A refill ring for use in a diaphragm-type flush valve is mounted upon the guide member of the diaphragm assembly. The refill ring has an outer diameter approximating the inner diameter of the flush valve passage adjacent the diaphragm seat. The refill ring has a plurality of recesses formed about its periphery whereby closure of the diaphragm assembly upon its flush valve seat moves the refill ring within the flush valve passage, the exterior of the refill ring being in contact with the interior of the passage such that the flow of water past the refill ring is limited to the area of the refill ring peripheral recesses.
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