User Guide

Technical Instructions Flowrite 599 Series Two-Way Valves
Document Number 155-184P25
July 23, 2008
Page 6 Siemens Building Technologies, Inc.
Table 3. Maximum Water Capacity - U.S. Gallons per Minute.
Pressure Differential - psi
Valve
Size
in
inches
Cv\1 2 3 4 5 6 8 10 15 20 25 30 40 50 60 75
1.0 1.4 1.7 2.0 2.2 2.5 2.8 3.2 3.9 4.5 5.0 5.5 6.3 7.1 7.8 8.7
1.6 2.3 2.8 3.2 3.6 3.9 4.5 5.1 6.2 7.2 8.0 8.8 10.1 11.3 12.4 13.9
2.5 3.5 4.3 5.0 5.6 6.1 7.1 7.9 97 11.2 12.5 13.7 15.8 17.7 19.4 22
1/2
4 5.7 7 8.0 8.9 10 11.3 12.6 15.5 17.9 20.0 21.9 25 28 31 35
3/4 6 8.9 10.9 12.6 14.1 15.4 17.8 20 24 28 32 35 40 45 49 55
1 10 14.1 17.3 20 22 24 28 32 39 45 50 55 63 71 77 87
1-1/4 16 23 28 32 36 39 45 51 62 72 80 88 101 113 124 139
1-1/2 25 35 43 50 56 61 71 79 97 112 125 137 158 177 194 217
2 40 57 69 80 89 98 113 126 155 179 200 219 253 283 310 346
Table 4. Maximum Water Capacity - Cubic Meters per Hour (m
3
/hr).
Pressure Differential - kPa
Valve Size
inches
mm
1 10 20 30 40 50 60 80
Kvs/
100
150 200 300 400 500
0.09 0.3 0.4 0.5 0.5 0.6 0.7 0.8 0.9 1.0 1.2 1.5 1.7 1.9
0.14 0.4 0.6 0.8 0.9 1.0 1.1 1.2 1.4 1.7 1.9 2.4 2.7 3.1
0.2 0.7 1.0 1.2 1.4 1.5 1.7 1.9 2.2 2.6 3.0 3.7 4.3 4.8
15
0.3 1.1 1.5 1.9 2.2 2.4 2.7 3.1 3.4 4.2 4.9 6.0 6.9 7.7
20 0.5 1.7 2.4 3.0 3.4 3.8 4.2 4.9 5.4 6.7 7.7 9.4 10.9 12.1
25 0.9 2.7 3.8 4.7 5.4 6.1 6.7 7.7 8.6 10.5 12.2 14.9 17.2 19.2
32 1.4 4.4 6.2 7.6 8.7 9.8 10.7 12.3 13.8 16.9 19.5 23.9 27.6 30.9
40 2.2 6.8 9.6 11.8 13.6 15.2 16.7 19.2 22 26 30 37 43 48
50 3.4 10.9 15.4 18.8 22 24 27 31 34 42 49 60 69 77