管径(mm) | 25 | 38 | 50 | 65 | 75 | 100 | 125 | 150 | 175 | 200 | 250 | 300 | 流量(L/S) | 1 | 3.27 | 3.5 | 0.8 |
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|
|
|
|
|
|
|
| 2 | 13.0 | 14 | 3.1 | 0.8 | 0.4 |
|
|
|
|
|
|
| 4 |
| 55 | 13 | 3.2 | 1.6 | 0.4 |
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|
|
|
|
| 6 |
|
| 29 | 7.1 | 3.3 | 0.8 | 0.23 |
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|
|
|
| 8 |
|
|
| 13 | 5.9 | 1.3 | 0.4 | 0.16 |
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|
|
| 10 |
|
|
| 20 | 9.6 | 2.1 | 0.63 | 0.26 | 0.11 |
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|
|
|
| 15 |
|
| 21.6 | 6.8 | 1.3 | 0.58 | 0.27 | 0.13 |
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|
|
| 20 |
|
|
| 8.6 | 2.7 | 1.1 | 0.5 | 0.26 | 0.07 |
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|
|
| 25 |
|
| 13 | 4.1 | 1.6 | 0.74 | 0.37 | 0.12 |
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|
|
| 30 |
|
| 19.4 | 5.9 | 2.3 | 1.05 | 0.53 | 0.18 | 0.07 |
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|
|
| 40 |
|
| 10.7 | 4.2 | 1.9 | 0.93 | 0.30 | 0.12 |
|
|
|
| 50 |
|
|
| 6.4 | 2.9 | 1.5 | 0.48 | 0.19 |
|
|
|
|
| 60 |
|
| 9.4 | 4.3 | 2.1 | 0.68 | 0.27 |
|
|
|
|
| 70 |
|
|
| 5.8 | 2.9 | 0.93 | 0.37 |
|
|
|
|
|
| 80 |
|
| 7.7 | 3.7 | 1.2 | 0.49 |
|
|
|
|
|
| 90 |
|
| 9.6 | 4.7 | 1.5 | 0.6 |
|
|
|
|
|
|
| 100 |
|
| 6.1 | 1.9 | 0.76 |
|
|
|
|
|
|
| 110 |
|
| 7.2 | 2.3 | 0.9 |
|
|
|
|
|
|
|
| 120 |
| 8.5 | 2.8 | 1.1 |
|
|
|
|
|
|
|
| 130 |
|
| 3.3 | 1.3 | 直管摩擦损失表(供估计用) 管100m直管损失米数 (以新铸管为标准,旧管加倍) | 140 |
| 3.7 | 1.5 | 160 |
| 4.9 | 2.0 |
| 180 | 5.2 | 2.4 |
| 200 |
| 3.0 |
|
|
阀及弯管折合直管长度(每个) | 种类 | 折合直管直径倍数 | 备注 | 全开闸阀 | 12 | 未畅开加倍 | 标准弯管 | 25 |
| 逆止阀 | 100 |
| 底阀 | 100 | 部分堵塞加倍 |
|
|
一定管路直径之最大流量限制 | 管路直径 (mm) | 最大流量 (L/S) | 最大流速 (m/s) | 管路直径 (mm) | 最大流量 (L/S) | 最大流速 (m/s) | 25 | 1 | 2.04 | 125 | 30.0 | 2.44 | 38 | 2.5 | 1.69 | 150 | 43.0 | 2.45 | 50 | 4.17 | 2.12 | 175 | 60.0 | 2.49 | 65 | 6.67 | 2.01 | 200 | 83.3 | 2.69 | 75 | 10.0 | 2.26 | 250 | 133.3 | 2.72 | 100 | 18.4 | 2.33 | 300 | 192.0 | 2.71 |
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