| 摘要 |
PURPOSE:To fix a valve unit portion having large capacity and diameter without passing through a fixing hole by installing the valve unit integrally incorporating a spindle with a valve mechanism from below a bibcock body. CONSTITUTION:A valve unit U is assembled by inserting a spindle 21 in a case 20, fitting a fixed ring 33 to the peripheral surface of the spindle 21, engaging the ring 33 with the upper end surface of the case 20, and retaining both valve plates 22, 23 with a spring 25. In case of installing the valve unit U on the main body 1, the case 20 is inserted in a cylinder portion 5 through a valve unit install port 4, an auxiliary ring 40 is fitted to the outside of the spindle 21, and a fixed ring 41 is disposed from above the ring. |
