Q41三片式软(硬)密封球阀主要连接尺寸(GB规格)
| DN | L | D | K | n-L | d | f | C |
| 20 | 150 | 105 | 75 | 4-14 | 56 | 2 | 16 |
| 25 | 160 | 115 | 85 | 4-14 | 65 | 2 | 16 |
| 32 | 180 | 140 | 100 | 4-18 | 76 | 2 | 18 |
| 40 | 200 | 160 | 110 | 4-18 | 84 | 2 | 18 |
| 50 | 230 | 165 | 125 | 4-18 | 99 | 2 | 20 |
| 65 | 190 | 185 | 145 | 4-18 | 118 | 2 | 20 |
| 80 | 310/241 | 200 | 160 | 8-18 | 132 | 2 | 20 |
| 100 | 350/305 | 220 | 180 | 8-18 | 156 | 2 | 22 |
