供水系统用弹性密封闸阀 阀体和阀盖的最小壁厚
公称尺寸 DN | 50 | 80 | 100 | 150 | 200 | 250 | 300 | 400 | 500 | 600 | 700 | 800 |
最小壁厚 | 8 | 9 | 10 | 11 | 13 | 16 | 17 | 22 | 25 | 28 | 32 | 36 |
注:表中壁厚仅适用于公称压力不大于PN16的球墨铸铁(QT450),公称压力不大于PN16的灰铸铁(HT200)。 |
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