Dia-Flo® - Enertech

11
Cv Values
FLANGED UNLINED
% open 3/4–1 11/2 2 21/2 3 4 6
10 1.0 2.0 4.0 8.0 14 24 65
20 3.2 8.0 9.0 18 27 47 125
30 5.2 14 14 28 42 70 255
40 7.4 21 19 52 68 130 365
50 9.4 33 33 78 97 185 445
60 13 43 50 105 120 245 515
70 18 50 62 130 145 275 550
80 21 52 69 150 160 295 570
90 22 54 70 160 175 305 590
100 22 56 70 160 190 310 600
FLANGED GLASS LINED
% open 3/4–1 11/2 2 21/2 3 4 6
10 1.4 3.0 3.0 8.0 12 24 98
20 3.8 9.0 9.0 18 32 50 190
30 6.2 16 17 28 48 77 370
40 8.6 26 25 56 84 145 520
50 12 40 40 85 135 210 640
60 18 51 62 115 185 270 750
70 22 54 75 140 220 335 805
80 22 55 82 155 240 395 835
90 22 54 82 180 245 415 845
100 22 53 78 180 250 420 850
FLANGED SOFT RUBBER LINED
% open 3/4–1 11/2 2 21/2 3 4 6
10 0.5 3.0 3.5 6.0 12 22 65
20 1.6 8.0 10 15 26 41 125
30 3.2 14 17 25 39 60 250
40 5.5 20 23 47 55 105 350
50 6.2 29 33 76 77 155 405
60 6.9 28 47 95 99 195 450
70 7.1 26 54 105 120 220 485
80 7.2 26 54 110 135 240 505
90 7.1 25 52 110 145 245 510
100 7.0 25 50 110 155 250 515
FLANGED HARD RUBBER LINED
% open 3/4–1 11/2 2 21/2 3 4 6
10 0.5 3.5 6.0 10 12 25 65
20 3.0 10 12 20 26 50 130
30 5.9 16 17 30 40 71 275
40 8.3 26 22 49 57 130 430
50 10 29 37 65 84 190 530
60 11 29 51 84 110 230 570
70 11 30 60 96 125 245 590
80 11 30 60 105 145 250 620
90 10 31 59 110 155 260 625
100 10 31 55 115 160 260 625
FLANGED PLASTIC LINED
% open 3/4–1 11/2 2 21/2 3 4 6
10 1.0 3.0 4.5 7.0 16 20 70
20 2.8 8.0 11 17 34 55 145
30 4.7 13 16 28 52 80 280
40 6.6 21 27 50 84 125 430
50 8.2 32 43 75 125 190 540
60 9.5 37 60 88 150 240 610
70 10 38 68 97 160 270 655
80 11 39 69 100 170 285 680
90 10 38 69 100 175 290 690
100 10 38 67 100 175 285 690
FLANGED END - PFA LINED - DUALRANGE
% open 1 11/2 2 3 4 6
10 0.3 2 4 8 11 45
20 1.0 6 12 26 32 106
30 1.8 10 20 47 59 215
40 3.9 19 25 88 107 407
50 6.6 24 34 101 181 525
60 9.5 28 49 124 262 625
70 10 29 59 134 302 670
80 11 31 60 141 330 698
90 11 32 60 147 356 728
100 12 34 61 150 365 738
SOLID PLASTIC*
% open 1 11/4 11/2 2 3 4
10 0.26 0.40 0.60 2.00 7.90 11.10
20 1.19 1.40 3.22 4.27 17.00 21.90
30 2.17 3.43 5.60 8.60 29.00 36.90
40 3.12 6.08 8.28 14.63 44.50 57.50
50 6.09 12.12 15.78 28.71 75.00 94.30
60 10.24 20.24 25.20 45.60 102.00 117.00
70 13.44 24.82 29.61 56.40 117.00 135.00
80 15.20 27.10 31.50 62.60 125.00 150.50
90 15.80 27.70 31.50 64.00 126.00 161.00
100 15.80 28.40 31.50 65.50 126.00 170.00
Cv values are expressed in gpm per 1 psi pressure drop.
*These values, with the exception of the 3" and 4" columns, are based
on engineering estimates and not actual test data.
PERCENT OPEN
100
90
80
70
60
50
40
30
20
10
Valve Flow Characteristics
EQUAL PERCENTAGE
LINEAR
DUAL RANGE
CONVENTIONAL WEIR
QUICK OPENING
PERCENT OPEN
100
90
80
70
60
50
40
30
20
10
BALL VALVE
HIGH PERFORMANCE BUTTERFLY VALVE
LINEAR
DUAL RANGE
CONVENTIONAL WEIR
PT Curves
Solid Plastic Body with Dualrange Actuator
10 20 30 40 50 60 70 80 90 100
PERCENT OF MAXIMUM Cv
10 20 30 40 50 60 70 80 90 100
PERCENT OF MAXIMUM Cv
Weir Body with Dualrange Actuator
-18
110
-4
10
24
38
Temperature C
52 65 79
93
107
121
135
149
7.6
-18
110
-4
10
24
38
52
Temperature C
65 79 93 107
121
135
149
163
177
7.6
Pressure psig
100
90
80
70
60
50
40
PVC
PP
CPVC
PVDF
6.9
6.2
5.5
4.8
4.1
3.4
2.7
Pressure bar
Pressure psig
100
90
80
70
60
50
40
6
2.5-3
4
1
1.25-2
6.9
6.2
5.5
4.8
4.1
3.4
2.7
Pressure bar
30
2.1
30
2.1
20
1.4
20
1.4
10
0.7
10
0.7
0
0
25
50
75
100
125 150 175
Temperature F
200
225
250
275
0.0
300
0
0
25
50
75
100
125 150 175 200
Temperature F
225
250
275
300
325
0.0
350