| 摘要 |
The present invention relates to a mode-convertible opening and closing valve for controlling the transfer of a fluid, and, more specifically, to a mode-convertible opening and closing valve having a body part (100) with a first connection flow path (51) connected to an inlet (11), a second and a third connection flow path (52, 53) connected to an upper and a lower stream chamber (35, 36) respectively, and a fourth connection flow path (54) connected to a flow path (13), wherein the first, the second, the third, and the fourth flow path (51, 52, 53, 54) are formed to penetrate the body part (100). An operation mode for the mode-convertible opening and closing the valve according to the present invention can be converted into an operation mode for opening and closing the valve by controlling to connect the first, the second, the third, and the fourth flow path (51, 52, 53, 54), or can be converted into an operation mode for opening and closing the valve by supplying hydraulic and pneumatic pressure to the first and the second flow path (52, 53) so that the user convenience and the economic feasibility of the valve can be improved and the design change and the form change of the valve can be easily managed, and, as a result, the valve can be flexibly managed in the entire process of production, distribution, and installation. |
