| 摘要 |
PROBLEM TO BE SOLVED: To provide a fluid valve which is operated by a medium and is switched to a closed position in accordance with a fluid existing on an inlet side.SOLUTION: A fluid valve 8, specifically a return valve 8 which returns a remaining paint, a rinse agent, and compressed air from a paint line 5 in conducting color conversion in a painting system, has: an open position specifically in which the paint line 5 is cleaned with the rinse agent and a new paint is pressed in the paint line 5 for color conversion, and the fluid valve 8 is at least partially opened; and a closed position specifically in which the fluid valve 8 is closed to coat with the new paint after the color conversion. The fluid valve 8 is adjusted between the open position and the closed position.SELECTED DRAWING: Figure 1 |
