YS/T451-2002覆塑铜管选用标准
公称通径 DN (mm) |
公称外径 O.D. (mm) |
铜管壁厚 Thickness(mm) |
齿形环 Gear-Shaped Loop (mm) |
平行环 Parallel Loop (mm) |
发泡形 Foam (mm) |
极限偏差 Maximum Deviation (mm) |
定尺长度 Length (mm) |
极限偏差 Maximum Deviation (mm) |
15 |
15 |
0.7 |
18.4 |
17 |
21.5 |
±0.20 |
2.9或(or)5.8 |
0~±10 |
20 |
22 |
0.9 |
25.4 |
24 |
28.5 | |||
25 |
28 |
31.4 |
30 |
-- | ||||
32 |
35 |
1.2 |
38.4 |
37.6 |
-- |
±0.30 | ||
40 |
42 |
45.4 |
44.6 |
-- | ||||
50 |
54 |
57.4 |
56.8 |
-- |
±0.40 | |||
65 |
67 |
-- |
69.8 |
-- | ||||
80 |
76 |
1.5 |
-- |
78.8 |
-- |
±0.50 |