用途：
本阀适用于公称压力≤1.0MPa的管路上作启闭用；其优点为结构紧凑，启闭迅速。
Uses:
This valve is applicable to nominal pressure ≤ 1.0MPa way to open and close with the management; the advantages of compact, open and close quickly.
外形尺寸和连接尺寸:
Dimensions and connection dimensions：
| 型号 | 公称通径(mm) | 管螺纹 G | 尺寸(mm) |
| L | L1 | S | H | D0 |
| Q11F-16 | 15 | Rc1/2 | 75 | 36 | 32 | 85 | 80 |
| 20 | Rc3/4" | 81 | 40 | 36 | 88 | 80 |
| 25 | Rc1 | 90 | 43 | 42 | 95 | 111 |
| 40 | Rp11/2 | 130 | 65 | 62 | 108 | 158 |
| 50 | Rp2 | 137 | 68 | 76 | 113 | 158 |