低壓降比調(diào)節(jié)閥 (三)續(xù)二|資料
低壓降比調(diào)節(jié)閥 (三)續(xù)二
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
|
50
|
Q′
|
0.700
|
0.590
|
0.510
|
0.465
|
0.440
|
0.420
|
0.380
|
0.370
|
0.340
|
0.330
|
0.320
|
0.305
|
0.304
|
△PR′
|
0.560
|
0.730
|
0.810
|
0.860
|
0.890
|
0.910
|
0.940
|
0.960
|
0.970
|
0.980
|
0.990
|
0.995
|
1.000
|
Kc
|
4.9
|
4.9
|
4.9
|
4.9
|
4.9
|
4.9
|
4.9
|
4.9
|
4.9
|
4.9
|
4.9
|
4.9
|
4.9
|
60
|
Q′
|
0.780
|
0.680
|
0.600
|
0.570
|
0.540
|
0.506
|
0.460
|
0.440
|
0.420
|
0.410
|
0.390
|
0.385
|
0.380
|
△PR′
|
0.450
|
0.630
|
0.730
|
0.790
|
0.840
|
0.870
|
0.910
|
0.940
|
0.960
|
0.970
|
0.980
|
0.990
|
1.000
|
Kc
|
3.92
|
3.92
|
3.92
|
3.92
|
3.92
|
3.92
|
3.92
|
3.92
|
3.92
|
3.92
|
3.92
|
3.92
|
3.92
|
65
|
Q′
|
0.810
|
0.720
|
0.650
|
0.610
|
0.570
|
0.550
|
0.510
|
0.480
|
0.460
|
0.440
|
0.430
|
0.420
|
0.418
|
△PR′
|
0.400
|
0.590
|
0.690
|
0.760
|
0.810
|
0.850
|
0.890
|
0.930
|
0.950
|
0.970
|
0.980
|
0.900
|
1.000
|
Kc
|
3.57
|
3.57
|
3.57
|
3.57
|
3.57
|
3.57
|
3.57
|
3.57
|
3.57
|
3.57
|
3.57
|
3.57
|
3.57
|
70
|
Q′
|
0.855
|
0.780
|
0.720
|
0.670
|
0.640
|
0.610
|
0.5470
|
0.540
|
0.510
|
0.507
|
0.490
|
0.490
|
0.480
|
△PR′
|
0.340
|
0.520
|
0.630
|
0.710
|
0.760
|
0.810
|
0.870
|
0.900
|
0.940
|
0.960
|
0.980
|
0.990
|
1.000
|
Kc
|
3.13
|
3.13
|
3.13
|
3.13
|
3.13
|
3.13
|
3.13
|
3.13
|
3.13
|
3.13
|
3.13
|
3.13
|
3.13
|
75
|
Q′
|
0.897
|
0.820
|
0.770
|
0.720
|
0.700
|
0.680
|
0.630
|
0.610
|
0.590
|
0.575
|
0.560
|
0.550
|
0.540
|
△PR′
|
0.290
|
0.460
|
0.580
|
0.660
|
0.720
|
0.770
|
0.840
|
0.880
|
0.920
|
0.950
|
0.970
|
0.990
|
1.000
|
Kc
|
2.78
|
2.78
|
2.78
|
2.78
|
2.78
|
2.78
|
2.78
|
2.78
|
2.78
|
2.78
|
2.78
|
2.78
|
2.78
|
80
|
Q′
|
0.930
|
0.870
|
0.830
|
0.790
|
0.770
|
0.750
|
0.710
|
.680
|
0.670
|
0.660
|
0.630
|
0.620
|
0.610
|
△PR′
|
0.240
|
0.390
|
0.510
|
0.590
|
0.660
|
0.720
|
0.800
|
0.850
|
0.900
|
0.930
|
0.960
|
0.980
|
1.000
|
Kc
|
2.42
|
2.42
|
2.42
|
2.42
|
2.42
|
2.42
|
2.42
|
2.42
|
2.42
|
2.42
|
2.42
|
2.42
|
2.42
| |
|
|
|
