将上述关系转换到不同开度（相对行程）时的流量与最大流量之比，可以获得相应的比值。表3-8和表3-9分别时线性
流量特性和等百分比流量特性的
调节阀在不同压降比和特定开度下计算的
流量系数Kv1与额定流量系数Kv之间的倍率K。即：Kv=kKv1
现在，我们可以根据特定开度时的流量乘以相应的倍率，就可以确定最大流量。
表3-8线性流量特性控制阀，不同压降比时的倍率k
|
0.05 |
0.10 |
0.15 |
0.2 |
0.25 |
0.3 |
0.4 |
0.5 |
0.6 |
0.7 |
0.8 |
0.9 |
1.0 |
| 10% |
8.8415 |
8.2566 |
8.0522 |
7.9481 |
7.8849 |
7.8425 |
7.7892 |
7.7570 |
7.7355 |
7.7201 |
7.7085 |
7.6995 |
7.6923 |
| 20% |
6.2019 |
5.3351 |
5.0130 |
4.8439 |
4.7396 |
4.6687 |
4.5786 |
4.5237 |
4.4867 |
4.4601 |
4.4400 |
4.4243 |
4.4118 |
| 30% |
5.3447 |
4.3087 |
3.9028 |
3.6831 |
3.5448 |
3.4494 |
3.3265 |
3.2504 |
3.1987 |
3.1613 |
3.1329 |
3.1107 |
3.0928 |
| 40% |
4.9668 |
3.8300 |
3.3668 |
3.1095 |
2.9443 |
2.8288 |
2.6775 |
2.5824 |
2.5171 |
2.4693 |
2.4329 |
2.4042 |
2.3810 |
| 50% |
4.7693 |
3.5702 |
3.0680 |
2.7832 |
2.5973 |
2.4657 |
2.2904 |
2.1786 |
2.1007 |
2.0432 |
1.9990 |
1.9640 |
1.9354 |
| 60% |
4.6538 |
3.4144 |
2.8853 |
2.5804 |
2.3787 |
2.2342 |
2.0392 |
1.9127 |
1.8235 |
1.7570 |
1.7054 |
1.6642 |
1.6304 |
| 70% |
4.5808 |
3.3142 |
2.7659 |
2.4462 |
2.2324 |
2.0778 |
1.8665 |
1.7273 |
1.6280 |
1.5532 |
1.4946 |
1.4474 |
1.4085 |
| 80% |
4.5318 |
3.2460 |
2.6839 |
2.3530 |
2.1300 |
1.9673 |
1.7426 |
1.5927 |
1.4844 |
1.4019 |
1.3367 |
1.2837 |
1.2397 |
| 90% |
4.4973 |
3.1977 |
2.6253 |
2.2859 |
2.0556 |
1.8865 |
1.6509 |
1.4918 |
1.3756 |
1.2861 |
1.2147 |
1.1561 |
1.1070 |
| 100% |
4.4721 |
3.1623 |
2.5820 |
2.2361 |
2.0000 |
1.8257 |
1.5811 |
1.4142 |
1.2910 |
1.1952 |
1.1180 |
1.0541 |
1.0000 |
表3-9等百分比流量特性控制阀，不同压降比时的倍率k
|
0.05 |
0.10 |
0.15 |
0.2 |
0.25 |
0.3 |
0.4 |
0.5 |
0.6 |
0.7 |
0.8 |
0.9 |
1.0 |
| 10% |
21.791 |
21.560 |
21.483 |
21.444 |
21.421 |
21.405 |
21.386 |
21.374 |
21.366 |
21.361 |
21.356 |
21.353 |
21.351 |
| 20% |
15.809 |
15.488 |
15.380 |
15.326 |
15.293 |
15.272 |
15.244 |
15.228 |
15.217 |
15.209 |
15.203 |
15.199 |
15.195 |
| 30% |
11.659 |
11.222 |
11.073 |
10.997 |
10.952 |
10.921 |
10.883 |
10.860 |
10.845 |
10.834 |
10.826 |
10.819 |
10.814 |
| 40% |
8.8448 |
8.2602 |
8.0559 |
7.9518 |
7.8886 |
7.8463 |
7.7930 |
7.7608 |
7.7393 |
7.7239 |
7.7124 |
7.7034 |
7.6961 |
| 50% |
7.0000 |
6.2450 |
5.9722 |
5.8310 |
5.7446 |
5.6862 |
5.6125 |
5.5678 |
5.5377 |
5.5162 |
5.5000 |
5.4874 |
5.4772 |
| 60% |
5.8476 |
4.9188 |
4.5674 |
4.3812 |
4.2655 |
4.1867 |
4.0859 |
4.0243 |
3.9827 |
3.9526 |
3.9300 |
3.9123 |
3.8981 |
| 70% |
5.1668 |
4.0861 |
3.6555 |
3.4200 |
3.2705 |
3.1669 |
3.0325 |
2.9489 |
2.8919 |
2.8504 |
2.8189 |
2.7941 |
2.7742 |
| 80% |
4.7852 |
3.5914 |
3.0927 |
2.8103 |
2.6264 |
2.4963 |
2.3234 |
2.2132 |
2.1365 |
2.0801 |
2.0367 |
2.0023 |
1.9744 |
| 90% |
4.5798 |
3.3128 |
2.7642 |
2.4442 |
2.2303 |
2.0755 |
1.8640 |
1.7246 |
1.6251 |
1.5501 |
1.4914 |
1.4441 |
1.4051 |
| 100% |
4.4721 |
3.1623 |
2.5820 |
2.2361 |
2.0000 |
1.8257 |
1.5811 |
1.4142 |
1.2910 |
1.1952 |
1.1180 |
1.0541 |
1.0000 |
