| 摘要 |
<p>A fill valve (20) has a main valve (50) with a valving surface (146) contacted by a valve disk (48). A series of offset radial paths (158) separated by a toroidal path permit free radial flow at full open and quiet tortuous flow as the valve closes. Removal of a cap (44) permits access to the main valve (50) for cleaning. Indicia in the valve body provide easy height adjustments. A riser base (32) is made up of easily molded locking parts and provides a variable height adjustment structure that is shielded from view. A flexible cup (46) performs multiple functions including serving as a pilot valve (52), a vacuum breaker valve (54) and a seal. A float (56) for operating the pilot valve (52) is pivotally mounted without extra parts or fasteners. <IMAGE></p> |
