A27H型丝扣安全阀主要连接尺寸
| 公称 通径DN（mm） | 尺 寸 | |||||
| do | R | L | L1 | G | ≈H | |
| 15 | 10 | 1/2" | 40 | 65 | 1/2" | 135 |
| 20 | 15 | 3/4" | 45 | 65 | 3/4" | 140 |
| 25 | 20 | 1" | 45 | 76 | 1" | 155 |
| 32 | 25 | 1 1/4" | 55 | 85 | 1 1/4" | 170 |
| 40 | 32 | 1 1/2" | 60 | 90 | 1 1/2" | 310 |
| 50 | 40 | 2" | 67 | 105 | 2" | 322 |
| 65 | 50 | 2 1/2" | 76 | 128 | 2 1/2" | 344 |
| 80 | 65 | 3" | 110 | 145 | 3" | 395 |
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