| 摘要 |
PROBLEM TO BE SOLVED: To provide a foot valve which enables a strainer, a valve seat supporting a valve body, and a valve casing, in which a pressing part is formed, to be accurately positioned relative to one another.SOLUTION: A foot valve includes: a plate-like valve seat 20 having a suction port; a valve body 30 which is provided on the valve seat 20 through a rotary shaft 23 and opens and closes the suction port; a valve casing 40 which covers the upper side of the valve seat 20, the valve casing 40 in which a pressing part 41 that is disposed facing the valve body 30 is formed on an inner peripheral surface; and a strainer located below the valve seat 20 and including an annular outer peripheral part 51 formed along an outer peripheral edge of the valve seat 20, a support part 52 which is separated from the valve seat 20 in a downward direction and provided so as to face the suction port, and multiple rib parts 60 provided between the outer peripheral part 51 and the support part 52 and extending in a radial direction. The valve seat 20 is integrally formed with the strainer. |
