Actuation rates are based on cold water at a specific gravity of 1.0. For fluids of different specific gravity, actuation rates may be approximated by
dividing the rate shown by the square root of the specific gravity.
Actuation rates are based on air at standard conditions. For gases at other pressures, temperatures, or specific gravities, consult factory for
equivalent flow approximations.
VANE
LAYERS
1
1&2
1,2,&3
1,2,3,&4
1,2,3,4,&5
1.5˝ PIPE
7-3
26.67-11.67
2˝ PIPE
15-8
56.7-30
7-4
26.7-15
3˝ PIPE
45-22
167-83.3
23-14
86.7-53.3
11-7
41.7-26.7
4˝ PIPE
95-40
367-150
50-35
190-132
27-19
102-71.7
17-12
65-45
6˝ PIPE
210-120
800-450
130-90
500-333
80-60
300-233
60-45
233-167
40-30
152-113
8˝ PIPE
375-175
1417-667
230-150
867-567
160-115
600-433
120-90
450-333
80-65
300-250
10˝ PIPE
600-300
2267-1133
450-250
1700-950
300-180
1133-683
230-150
867-567
135-100
517-383
12˝ PIPE
900-450
3400-1700
650-350
2467-1317
450-275
1700-1033
310-200
1167-750
200-140
750-533
20˝ PIPE
2400-1200
9083-4550
1800-1000
6817-3783
1200-700
4550-2650
850-550
3217-2083
575-400
2183-1517
18˝ PIPE
2000-1000
7567-3783
1450-800
5483-3033
1000-600
3783-2267
700-450
2650-1700
460-325
1733-1233
16˝ PIPE
1400-800
5300-3033
1200-650
4550-2467
750-450
2750-2083
550-360
2083-1367
360-250
1367-950
14˝ PIPE
1200-600
4550-2267
900-500
3400-1900
600-350
2267-1317
430-280
1633-1067
290-200
1100-750
APPROXIMATE ACTUATION/DEACTUATION FLOW RATES FOR COLD WATER.
UPPER FIGURES IN GPM. LOWER FIGURES IN LPM
VANE
LAYERS
1
1&2
1,2,&3
1,2,3,&4
1,2,3,4,&5
1.5˝ PIPE
32-17
15-8
2˝ PIPE
65-32
30-20
23-13
10-6
3˝ PIPE
210-105
100-50
120-70
60-30
60-48
30-20
4˝ PIPE
400-200
190-90
195-140
90-70
135-100
60-50
65-50
30-20
6˝ PIPE
950-475
450-220
550-375
260-180
375-265
180-130
260-200
120-90
130-100
60-50
8˝ PIPE
1550-850
730-400
1100-700
520-330
725-500
340-240
500-400
240-190
310-250
150-120
10˝ PIPE
2400-1300
1100-600
1850-1200
870-570
1200-850
570-400
875-700
410-330
650-525
310-250
12˝ PIPE
3450-1900
1600-900
2700-1750
1300-800
1850-1300
870-610
1250-1000
590-470
1000-800
470-380
20˝ PIPE
10000-5500
4700-2600
7400-4800
3500-2300
5300-3700
2500-1700
3900-3100
1800-1500
3550-2850
1700-1300
18˝ PIPE
8000-4400
3800-2100
6000-3900
2800-1800
4300-3000
2000-1400
3100-2500
1500-1200
2800-2250
1300-1100
16˝ PIPE
6400-3500
3000-1700
4800-3100
2300-1500
3350-2350
1600-1100
2500-2000
1200-900
2200-1750
1040-830
14˝ PIPE
4700-2600
2200-1200
3400-2200
1600-1000
2600-1800
1200-800
1900-1500
900-710
1600-1250
760-590
APPROXIMATE ACTUATION/DEACTUATION FLOW RATES FOR AIR.
UPPER FIGURES IN SCFM. LOWER FIGURES IN LPS
Values shown in both charts are nominal. If normal flows exceed actuation rates by less than 10%, custom vanes are recommended.
Figures are based on standard vertical installation in a 1-1/2" thredolet in a horizontal run of pipe.
V4 Universal Vane Flow Charts
APPLICATION DRAWINGS FOR FLOTECT
®
AUTOMATIC FLOW SWITCHES
Standard Installation
2-1/2˝ Thredolet Installation
1-1/2˝ X 1-1/2˝ X 1-1/2˝
Tee Installation
2˝ X 2˝ X 2˝
Tee Installation
Flange Installation
W.E. ANDERSON DIV., DWYER INSTRUMENTS, INC.
P.O. BOX 358 • MICHIGAN CITY, INDIANA 46360 U.S.A.
Phone: 219/879-8000 www.dwyer-inst.com
Fax: 219/872-9057 e-mail: [email protected]
