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弹簧直接载荷式安全阀 安全阀的结构长度及进出口法兰端面垂直度极限偏差_阀门标准
弹簧直接载荷式安全阀 安全阀的结构长度及进出口法兰端面垂直度极限偏差
| 公称通经 DN/mm | 结构长度极限偏差/mm | 垂直度极限偏差 | |
| ΔL | ΔL1 | α | |
| ≤100 | ±1.5 | ±1.5 | ±30＇ |
| ＞100～250 | ±3.0 | ±3.0 | ±20＇ |
| ＞250 | ±3.0 | ±3.0 | ±15＇ |
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