公稱通徑 | 外套鍍鋅鋼管 | 內襯塑料管 | |||||||
外徑 | 壁厚 | 外徑 | 壁厚 | 長度及允差 | |||||
尺寸 | 允差 | 尺寸 | 允差 | 尺寸 | 允差 | 尺寸 | 允差 | ||
| 15 | 21.3 | ±0.2 | 2.8 | ±0.2 | 15.3 | ±0.2 | 1.5 | ±0.2 | 6220+20 |
20 | 26.8 | ±0.2 | 2.8 | ±0.2 | 21.1 | ±0.2 | 1.5 | ±0.2 | 6220+20 |
| 25 | 33.5 | ±0.2 | 3.2 | ±0.2 | 26.6 | ±0.2 | 1.5 | ±0.2 | 6220+20 |
| 32 | 42.3 | ±0.2 | 3.5 | ±0.2 | 34.9 | ±0.2 | 1.5 | ±0.2 | 6250+20 |
| 40 | 48.2 | ±0.2 | 3.5 | ±0.2 | 40.8 | ±0.2 | 1.5 | ±0.2 | 6250+20 |
| 50 | 60.3 | ±0.2 | 3.5 | ±0.2 | 52.9 | ±0.2 | 1.5 | ±0.2 | 6250+20 |
| 50 | 60.3 | ±0.2 | 3.8 | ±0.2 | 52.0 | ±0.2 | 1.5 | ±0.2 | 6250+20 |
| 65 | 75.9 | ±0.3 | 4.0 | ±0.3 | 67.4 | ±0.3 | 1.5 | ±0.2 | 6250+20 |
| 80 | 88.9 | ±0.3 | 4.0 | ±0.3 | 80.4 | ±0.3 | 2.0 | ±0.2 | 6340+20 |
| 100 | 114.1 | ±0.4 | 4.0 | ±0.3 | 105.6 | ±0.4 | 2.0 | ±0.2 | 6340+20 |
| 125 | 139.7 | ±0.5 | 4.0 | ±0.3 | 131.5 | ±0.5 | 2.0 | ±0.2 | 6380+20 |
| 150 | 165.1 | ±0.5 | 4.0 | ±0.3 | 155.8 | ±0.5 | 2.5 | ±0.2 | 6380+20 |
| 200 | 219.1 | ±1.0 | 4.0 | ±0.4 | 209.1 | ±1.0 | 2.5 | ±0.2 | 6380+20 |
1.鋼管通常以6m定尺交貨，定尺偏差為+150mm，或可按客戶要求生產。
2.外套鍍鋅鋼管符合GB/T28897標準要求，內村塑料管材可為PE（冷水用）、PE-RT（熱水用）。
3.鋼管內焊縫應去除，其殘留高度不超過0.5mm。
4.產品不含塑化劑，符合生活飲用水輸送衛生安全規范要求。
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