Technical Instructions
Powermite 599 MT Series Terminal Unit 2-way Valves
Document Number 155-196P25
April 9, 2009
Page 4
Siemens Building Technologies, Inc.
Table 3. Maximum Water Capacity - U.S. Gallons per Minute.
Valve
Size
In
inches
Pressure Differential - psi
Cv\1
2 3 4 5 6 8 10
15
20
25
30 40 50 60
75
1/2
0.4 0.6 0.7 0.8 0.9 1.0 1.1 1.3 1.5 1.8 2.0 2.2 2.5 2.8 3.1 3.5
0.63
0.9 1.1 1.3 1.4 1.5 1.8 2.0 2.4 2.8 3.2 3.5 4.0 4.5 4.9 5.5
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 9.7 11.2 12.5
13.7
15.8 17.7 19.4
22
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
6.3 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
Table 4. Maximum Water Capacity - Cubic Meters per Hour (m
3
/hr).
Valve Size
Pressure Differential - kPa
In
mm
1 10 20 30 40 50 60 80
Kvs/
100
150 200 300 400 500
15
0.03 0.11 0.15 0.19 0.22
0.24
0.26
0.30
0.34
0.42
0.48
0.59 0.68 0.76
0.05 0.17 0.24 0.30 0.34
0.38
0.42
0.48
0.54
0.66
0.76
0.94 1.08 1.21
0.09 0.27 0.38 0.47 0.54
0.60
0.66
0.76
0.85
1.0
1.2
1.5
1.7
1.9
0.14 0.43 0.61 0.75 0.87
0.97
1.06
1.23
1.37
1.7
1.9
2.4
2.7
3.1
0.21 0.68 0.96 1.17 1.35
1.51
1.66
1.91
2.15
2.6
3.0
3.7
4.3
4.8
0.34 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
0.54 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
0.86 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
