| 摘要 |
PURPOSE:To enable the assembly of a check valve to be effected only by fastening work with a nut or the like so as to simplify assembling work by mounting a check plate to a rod in the state of the check plate being interposed between both upper and lower check bodies, and fastening it axially by the nut or the like. CONSTITUTION:In a check plate 9, a fixing inner peripheral ring part 9a, a ring valve part 9b, an fixing outer peripheral ring part 9c are disposed with specified ring clearances in order from the inside by the pressing of one plate, and the respective parts are mutually connected only in one place by connecting parts 9d, 9e. The fixing outer peripheral ring part 9c is interposed in the state of being held between the outer peripheral ring fixing part 8b of an upper check body 8 and the outer peripheral ring fixing part 10b of a lower check body 10. A check valve can be thereby assembled only by fastening work with a nut or the like, so that assembling work can be simplified. |
