| 摘要 |
A structure for supplying air from a positioner to an actuator in a linear valve opening degree controller is provided to supply air supplied from the positioner to an actuator through an air passage without leakage. In a structure for supplying air from a positioner to an actuator(10) in a linear valve opening degree controller, a second air passage directly supplying the air of a positioner to an upper portion of the actuator is formed on one side of a first air passage(40). A lower air supply passage penetrating a flange portion(F) is formed on one side of the first air passage. An upper air supply passage receiving air to the lower air supply passage and supplying the air to an upper portion of the actuator is formed in a case body of the actuator. |
