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.
VANE
LAYERS
1.5"PIPE
2"PIPE
7-3
15-8
1
26.67-11.67
56.7-30
7-4
1&2
26.7-15
1,2,&3
1,2,3,&4
1,2,3,4,
&5
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.
VANE
LAYERS
1.5"PIPE
2"PIPE
32-17
65-32
1
15-8
30-20
23-13
1&2
10-6
1,2,&3
1,2,3,&4
1,2,3,4,
&5
Actuation rates are based on air at standard conditions. For gases at other pressures, temperatures, or specific gravities, consult factory for equivalent flow approximations.
APPLICATION DRAWINGS FOR FLOTECT
Standard Installation
Flange Installation
DWYER INSTRUMENTS, INC.
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A.
7/31/20
11:26 AM
APPROXIMATE ACTUATION/DEACTUATION FLOW RATES FOR COLD WATER.
UPPER FIGURES IN GPM. LOWER FIGURES IN LPM
6"PIPE
4"PIPE
3"PIPE
95-40
210-120
45-22
800-450
367-150
167-83.3
50-35
130-90
23-14
500-333
190-132
86.7-53.3
27-19
80-60
11-7
300-233
102-71.7
41.7-26.7
60-45
17-12
65-45
233-167
40-30
152-113
APPROXIMATE ACTUATION/DEACTUATION FLOW RATES FOR AIR.