|
|
公称通径 |
阀门全开启时的流体阻力系数 |
常温下阀门全开启时的水讲E量系数 |
流体的流向 |
|||||
DN |
NPS |
Kv(m3=／h) |
CV(U.S) |
CV(U.K) |
↑ |
↓ |
→ |
|
开启压力近似值KPa |
||||||||
15 |
1/2 |
6.4 |
2.6 |
3.0 |
2.5 |
3 |
2 |
2.5 |
20 |
3/4 |
5.1 |
6.4 |
7.5 |
6.3 |
3 |
2 |
2.5 |
25 |
4 |
4.1 |
12.6 |
14.8 |
12.3 |
3 |
2 |
2.5 |
32 |
11/4 |
4.1 |
19.7 |
23.1 |
19.3 |
3 |
2 |
2.5 |
40 |
11/2 |
3.8 |
29.5 |
63.9 |
28.9 |
3 |
2 |
2.5 |
50 |
2 |
3.5 |
54.6 |
99.9 |
63.5 |
3 |
2 |
2.5 |
65 |
21/2 |
3.5 |
85.4 |
150 |
83.7 |
3 |
2 |
2.5 |
80 |
3 |
3.2 |
128 |
286 |
125 |
3 |
2 |
2.5 |
100 |
4 |
2.8 |
244 |
286 |
249 |
3 |
2 |
2.5 |
125 |
5 |
2.9 |
375 |
439 |
368 |
3 |
1 |
2.2 |
150 |
6 |
3.1 |
522 |
611 |
512 |
3 |
1 |
2.2 |
200 |
8 |
3.2 |
915 |
1070 |
897 |
3 |
1 |
2.2 |
