覆塑紫銅管的外形尺寸
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塑覆紫銅管的外形尺寸
公稱通經 DN | 鋼管外徑 DW(mm) | 塑覆銅管外徑(mm) | 外徑允許偏差(mm) | 塑覆壁厚(mm) | 塑覆層允許偏差(mm) | 齒數 |
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齒型環 | 平形環 | 齒型環 | 平形環 |
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15 | 15 | 18.60 | 17.60 | ±0.25 | 1.80 | 1.30 | ±0.20 | 16-25 |
20 | 22 | 25.60 | 24.60 | ±0.25 | 1.80 | 1.30 | ±0.20 | 20-30 |
25 | 28 | 31.60 | 30.60 | ±0.25 | 1.80 | 1.30 | ±0.20 | 20-30 |
32 | 35 | 40.00 | 38.60 | ±0.30 | 2.50 | 1.80 | ±0.25 | 28-35 |
40 | 42 | 47.00 | 45.60 | ±0.30 | 2.50 | 1.80 | ±0.25 | 32-42 |
50 | 54 | 60.00 | 58.00 | ±0.40 | 3.00 | 2.00 | ±0.30 | 42-52 |