PURPOSE: To prevent a spherical body from vibration even in case of a large flow rate by installing a ring-shaped supporting part for the spherical body on a stopper and setting the center of the ring-shaped supporting part and the center of a flow passage to be eccentric.
CONSTITUTION: A spherical body 14 installed in a flow passage 13, valve seat 15 which is constituted on the upstream side of the spherical body 14, and a stopper 16 for the spherical body 15 installed on the downstream side of the spherical body 14 are arranged. In this case, the stopper 6 has the ring- shaped supporting part 20 of the spherical body 14, and the center of the supporting part 20 and the center of the flow passage 13 are set eccentric. Accordingly, the generation of the Magnus effect on the spherical body 14 is prevented, and the revolution of the spherical body 14 itself is prevented, and the spherical body 14 can be held in stop state.
KONDO MASAMITSU
NAKAMURA KUNIO
YAMANOCHI SHUJI
| JPS571872A | 1982-01-07 | |||
| JPS55139565A | 1980-10-31 | |||
| JPS62189808A | 1987-08-19 |