H71对夹升降式止回阀（国标）H71 wafer type lift check valve(GB standard)
| 公称压力 PN（MPa) Norminal pressure |
公称通径 DN(mm) Norminal diameter |
尺寸(mm)Dimension | 重量（kg) Weight |
配管法兰（供参考） Flange(as referenced) |
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| L | D | D3 | D2 | 螺栓孔中 心圆直径D1 Diameter of the bolt |
螺栓数量 Quantity of the bolt |
螺栓直径d Diameter of the bolt |
螺栓长度L1 Length of the bolt |
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| 4.0 | 15 | 16 | 52 | 15 | 44 | 0.12 | 65 | 4 | M12 | 80 |
| 20 | 19 | 62 | 19 | 52 | 0.24 | 75 | 4 | M12 | 90 | |
| 25 | 22 | 72 | 24 | 60 | 0.34 | 85 | 4 | M12 | 90 | |
| 32 | 28 | 83 | 31 | 72 | 0.53 | 100 | 4 | M16 | 110 | |
