| 摘要 |
PROBLEM TO BE SOLVED: To provide a flow control valve capable of easily performing flow rate control.SOLUTION: In a flow control valve 10, a direct-acting support hole 28 for supporting a first valve element 40 for opening and closing a first valve port 30 of a relatively-large opening area in a direct-acting manner is demarcated into a first pressure chamber 28A and a second pressure chamber 28B by a piston 41. When a pilot pressing part 81 of a direct-acting shaft 80 presses and moves a pilot valve element 61 to open a valve port 60, differential pressure is generated between the first pressure chamber 28A and the second pressure chamber 28B, the first valve element 40 is moved to a valve opening position, and the first valve port 30 is opened. A second valve element 51 for opening and closing a second valve port 50 having a relatively-small opening area is provided on a tip of the direct-acting shaft 80. |
