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             管路损耗参考  | 
            
           
             发布时间:2008-12-10 11:27:34   | 
             来自:
               ---
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| 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 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 | 
 |  
| 2 | 
13.0 | 
14 | 
3.1 | 
0.8 | 
0.4 | 
 | 
 | 
 | 
 | 
 | 
 | 
 |  
| 4 | 
 | 
55 | 
13 | 
3.2 | 
1.6 | 
0.4 | 
 | 
 | 
 | 
 | 
 | 
 |  
| 6 | 
 | 
 | 
29 | 
7.1 | 
3.3 | 
0.8 | 
0.23 | 
 | 
 | 
 | 
 | 
 |  
| 8 | 
 | 
 | 
 | 
13 | 
5.9 | 
1.3 | 
0.4 | 
0.16 | 
 | 
 | 
 | 
 |  
| 10 | 
 | 
 | 
 | 
20 | 
9.6 | 
2.1 | 
0.63 | 
0.26 | 
0.11 | 
 | 
 | 
 |  
 | 
 | 
15 | 
 | 
 | 
21.6 | 
6.8 | 
1.3 | 
0.58 | 
0.27 | 
0.13 | 
 | 
 |  
 | 
 | 
20 | 
 | 
 | 
 | 
8.6 | 
2.7 | 
1.1 | 
0.5 | 
0.26 | 
0.07 | 
 |  
 | 
 | 
 | 
25 | 
 | 
 | 
13 | 
4.1 | 
1.6 | 
0.74 | 
0.37 | 
0.12 | 
 |  
 | 
 | 
 | 
30 | 
 | 
 | 
19.4 | 
5.9 | 
2.3 | 
1.05 | 
0.53 | 
0.18 | 
0.07 |  
 | 
 | 
 | 
 | 
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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