| 摘要 |
PROBLEM TO BE SOLVED: To provide a flow control device including a cover for avoiding a change of preset flow rate.SOLUTION: A needle valve 22 is provided in a body part 26. By making the needle valve 22 move under a rotational action of a handle 20 in the body part 26, fluid flow between a first port 12 and a second port 16 is adjusted. In order to prevent a change of the adjusted flow rate, the handle 20 is surrounded with a cover 24. |
