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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 | |||
| 公称通径 DN/mm |
结构长度极限偏差/mm | 垂直度极限偏差 | |
| △L | △L1 | a | |
| ≤100 | ±1.5 | ±1.5 | ±30' |
| ＞100~250 | ±3.0 | ±3.0 | ±20' |
| ＞250 | ±3.0 | ±3.0 | ±15' |
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