低壓降比調(diào)節(jié)閥 (三)續(xù)|資料
低壓降比調(diào)節(jié)閥 (三)續(xù)
表 1 LLPV~△PR
△PR
h% （% ）
|
0.05
|
0.10
|
0.15
|
0.20
|
0.25
|
0.30
|
0.40
|
0.50
|
0.60
|
0.70
|
0.80
|
0.90
|
1.00
|
10
|
Q′
|
0.270
|
0.200
|
0.170
|
0.150
|
0.140
|
0.130
|
0.117
|
0.109
|
0.104
|
0.100
|
0.096
|
0.093
|
0.091
|
△PR′
|
0.934
|
0.967
|
0.979
|
0.983
|
0.989
|
0.991
|
0.994
|
0.996
|
0.997
|
0.998
|
0.999
|
0.999
|
1.000
|
Kc
|
16.37
|
16.37
|
16.37
|
16.37
|
16.37
|
16.37
|
16.37
|
16.37
|
16.37
|
16.37
|
16.37
|
16.37
|
16.37
|
20
|
Q′
|
0.390
|
0.300
|
0.240
|
0.220
|
0.210
|
0.200
|
0.180
|
0.165
|
0.158
|
0.150
|
0.140
|
0.138
|
0.137
|
△PR′
|
0.862
|
0.930
|
0.954
|
0.967
|
0.975
|
0.981
|
0.988
|
0.991
|
0.994
|
0.994
|
0.997
|
0.999
|
1.000
|
Kc
|
10.89
|
10.89
|
10.89
|
10..89
|
10.89
|
10.89
|
10.89
|
10.89
|
10.89
|
10.89
|
10.89
|
10.89
|
10.89
|
30
|
Q′
|
0.505
|
0.390
|
0.320
|
0.300
|
0.276
|
0.260
|
0.240
|
0.230
|
0.210
|
0.205
|
0.197
|
0.190
|
0.186
|
△PR′
|
0.770
|
0.830
|
0.920
|
0.940
|
0.955
|
0.960
|
0.980
|
0.980
|
0.990
|
0.996
|
0.998
|
0.998
|
1.000
|
Kc
|
8.00
|
8.00
|
8.00
|
8.00
|
8.00
|
8.00
|
8.00
|
8.00
|
8.00
|
8.00
|
8.00
|
8.00
|
8.00
|
40
|
Q′
|
0.610
|
0.400
|
0.420
|
0.380
|
0.355
|
0.340
|
0.300
|
0.290
|
0.280
|
0.260
|
0.250
|
0.246
|
0.240
|
△PR′
|
0.670
|
0.810
|
0.870
|
0.900
|
0.930
|
0.940
|
0.960
|
0.970
|
0.980
|
0.990
|
0.990
|
0.997
|
1.000
|
Kc
|
6.17
|
6.17
|
6.17
|
6.17
|
6.17
|
6.17
|
6.17
|
6.17
|
6.17
|
6.17
|
6.17
|
6.17
|
6.17
|
|
