User Guide
easy-e Valves
Product Flier
PF51.1:E
July 2008
21
EWD, EWS, and EWT Flow Coefficients
FLOW
CHARAC-
TERISTIC
VALVE SIZE
MAXI-
MUM
TRAVEL
PORT
DIA.
EWD AND EWT
(FLOW DOWN)
EWS (FLOW UP)
Valve Opening, Percent of Total Travel
10 30 70 100 100 10 30 70 100 100
DN NPS mm mm C
V
F
L
C
V
F
L
Quick
Opening
100 x 50
150 x 100
200 x 100
200 x 150
4 x 2
6 x 4
8 x 4
8 x 6
29
51
51
51
58.7
111.1
111.1
177.8
13.8
40.8
43.2
79.0
42.7
140
147
247
105
306
328
531
124
340
379
637
.82
.88
.89
.89
13.7
39.4
42.1
79.3
42.1
147
149
249
101
355
365
606
123
382
450
714
.89
.88
.85
.86
300 x 150
250 x 200
300 x 200
400 x 250
12 x 6
10 x 8
12 x 8
16 x 10
51
76
76
152
177.8
203.2
203.2
257.2
80.1
138
149
234
250
468
481
1220
621
903
1000
2080
817
1040
1260
2230
.82
.88
.79
.79
86.1
151
157
221
261
471
480
1190
641
918
957
2100
874
1000
1110
2210
.79
.93
.89
.87
X
T -
-
-
X
T -
-
-
100 x 50
150 x 100
200 x 100
200 x 150
4 x 2
6 x 4
8 x 4
8 x 6
29
51
51
51
58.7
111.1
111.1
177.8
.571
.577
.629
.544
.662
.612
.631
.578
.714
.793
.809
.759
.693
.818
.817
.705
- - -
- - -
- - -
- - -
.639
.619
.578
.682
.652
.591
.560
.634
.843
.726
.733
.688
.793
.781
.704
.671
- - -
- - -
- - -
- - -
300 x 150
250 x 200
300 x 200
400 x 250
12 x 6
10 x 8
12 x 8
16 x 10
51
76
76
152
177.8
203.2
203.2
257.2
.515
.665
.687
.872
.613
.651
.727
.682
.715
.741
.744
.652
.782
.787
.636
.614
- - -
- - -
- - -
- - -
.614
.632
.718
.689
.571
.625
.712
.682
.677
.798
.855
.644
.736
.842
.836
.638
- - -
- - -
- - -
- - -
Linear
C
V
F
L
C
V
F
L
100 x 50
150 x 100
200 x 100
200 x 150
4 x 2
6 x 4
8 x 4
8 x 6
29
51
51
51
58.7
111.1
111.1
177.8
6.80
21.4
23.2
44.0
23.0
78.7
80.6
170
70.8
201
211
405
107
320
340
617
.79
.86
.82
.88
6.88
26.2
25.1
52.5
21.5
78.4
78.1
182
60.0
197
192
435
96.2
320
328
607
.89
.89
.89
.88
300 x 150
250 x 200
300 x 200
400 x 250
12 x 6
10 x 8
12 x 8
16 x 10
51
76
76
152
177.8
203.2
203.2
257.2
51.7
95.9
104
307
176
336
348
834
458
798
907
1680
729
975
1160
2020
.81
.91
.80
.82
57.4
106
119
343
186
315
336
865
441
766
795
1680
675
958
1050
2080
.84
.92
.89
.87
X
T -
-
-
X
T -
-
-
100 x 50
150 x 100
200 x 100
200 x 150
4 x 2
6 x 4
8 x 4
8 x 6
29
51
51
51
58.7
111.1
111.1
177.8
.625
.686
.694
.796
.691
.651
.691
.758
.582
.672
.676
.801
.654
.725
.753
.656
- - -
- - -
- - -
- - -
.599
.713
.610
.655
.728
.661
.682
.688
.744
.666
.716
.723
.794
.725
.729
.679
- - -
- - -
- - -
- - -
300 x 150
250 x 200
300 x 200
400 x 250
12 x 6
10 x 8
12 x 8
16 x 10
51
76
76
152
177.8
203.2
203.2
257.2
.716
.683
.700
.676
.691
.610
.647
.670
.661
.715
.711
.702
.633
.843
.696
.671
- - -
- - -
- - -
- - -
.523
.666
.678
.786
.612
.708
.811
.627
.704
.731
.809
.670
.719
.820
.836
.660
- - -
- - -
- - -
- - -
Equal
Percentage
C
V
F
L
C
V
F
L
100 x 50
150 x 100
200 x 100
200 x 150
4 x 2
6 x 4
8 x 4
8 x 6
29
51
51
51
58.7
111.1
111.1
177.8
2.53
7.34
8.01
13.2
6.66
19.8
21.1
45.4
29.4
108
118
256
82.2
271
286
508
.82
.87
.85
.91
2.40
7.18
8.37
12.0
5.97
18.2
20.0
36.9
26.3
100
102
226
67.5
271
269
478
.90
.88
.90
.92
300 x 150
250 x 200
300 x 200
400 x 250
12 x 6
10 x 8
12 x 8
16 x 10
51
76
76
152
177.8
203.2
203.2
257.2
23.6
32.3
28.4
126
52.8
111
112
238
248
635
687
959
565
924
1090
2090
.79
.89
.81
.77
18.6
33.9
28.8
63.2
43.8
97.7
102
189
231
568
654
837
476
932
1020
1780
.88
.90
.88
.83
X
T -
-
-
X
T -
-
-
100 x 50
150 x 100
200 x 100
200 x 150
4 x 2
6 x 4
8 x 4
8 x 6
29
51
51
51
58.7
111.1
111.1
177.8
.626
.996
.684
.837
.664
.711
.643
.719
.646
.630
.566
.626
.587
.712
.675
.684
- - -
- - -
- - -
- - -
.751
.794
.761
.733
.781
.775
.716
.874
.732
.718
.701
.773
.777
.694
.704
.727
- - -
- - -
- - -
- - -
100 x 50
150 x 100
200 x 100
200 x 150
4 x 2
6 x 4
8 x 4
8 x 6
51
76
76
152
177.8
203.2
203.2
257.2
.628
.725
.666
.655
.694
.687
.667
.640
.695
.595
.664
.503
.627
.802
.663
.546
- - -
- - -
- - -
- - -
.661
.836
.769
.565
.824
.894
.928
.501
.764
.699
.651
.497
.788
.760
.766
.652
- - -
- - -
- - -
- - -