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Bulletin 74.1:T205
24
- continued -
SPRING RANGE
AND COLOR
OUTLET
PRESSURE
SETTING
OFFSET FROM
SETPOINT
INLET
PRESSURE
C
v
COEFFICIENT
Orice Size, In. / mm
1/8 / 3.2 1/4 / 6.4 3/8 / 9.5 1/2 / 13 9/16 / 14
psig bar
TYPE
T205 T205M T205 T205M T205 T205M T205 T205M T205 T205M
2.5 to 7 in. w.c. /
6.2 to 17 mbar
Red
7 in. w.c. /
17 mbar
-2 to 2 in. w.c. /
-5.0 to 5.0 mbar
1 0.07 0.4 0.3 0.7 0.9 1.3 1.6 1.7 1.8 1.7 2.6
2 0.14 0.3 0.3 0.9 1.0 1.6 1.7 2.0 1.5 1.9 2.5
5 0.34 0.4 0.4 1.0 0.8 1.3 1.3 1.8 2.2 1.9 2.3
10 0.69 0.4 0.4 1.0 1.1 1.3 1.5 1.8 2.1 1.9 2.3
15 1.0 0.4 0.4 1.0 1.1 1.2 1.5 1.7 1.9 1.5 2.5
20 1.4 0.4 0.3 0.9 1.1 1.2 1.6 1.4 2.0 1.3 2.7
30 2.1 0.4 0.4 1.1 1.1 1.0 1.7 1.4 3.2 1.0 2.7
40 2.8 0.4 0.4 0.9 1.1 1.1 1.4 1.0 2.8
60 4.1 0.4 0.4 0.8 1.0 0.9 1.7
80 5.5 0.4 0.4 0.9 1.0 0.8 1.9
100 6.9 0.4 0.4 0.7 1.0
125 8.6 0.4 0.4 0.4 1.0
150 10.3 0.4 0.4 0.3 1.3
175 12.1 0.3 0.4 0.3 1.3
200 13.8 0.2 0.4
7 to 16 in. w.c. /
17 to 40 mbar
Unpainted
8 in. w.c. /
20 mbar
-2 to 2 in. w.c. /
-5.0 to 5.0 mbar
1 0.07 0.3 0.3 0.8 1.0 1.0 1.2 1.2 1.6 1.6 1.5
2 0.14 0.3 0.3 0.7 0.9 1.2 1.2 1.6 0.9 1.7 1.5
5 0.34 0.3 0.4 0.9 0.6 1.1 1.1 1.7 1.7 1.7 1.9
8 0.55 0.3 0.4 0.8 0.8 1.1 1.1 1.6 1.7 1.7 1.8
20 1.4 0.3 0.2 0.9 0.9 1.1 1.2 1.5 1.6 1.4 1.7
35 2.4 0.4 0.2 0.9 0.9 0.9 1.2 0.9 2.1 1.0 1.8
60 4.1 0.3 0.3 0.7 0.8 0.9 0.9 1.1 1.8 1.3 1.8
75 5.2 0.3 0.3 0.7 0.8 0.7 0.9 0.9 1.7 1.2 1.8
100 6.9 0.3 0.3 0.7 0.7 0.5 0.7 0.6 1.6 0.8 1.4
125 8.6 0.3 0.3 0.4 0.8 0.6 1.2 0.5 1.2
150 10.3 0.3 0.3 0.3 0.7 0.3 0.7
175 12.1 0.3 0.3 0.3 1.0 0.2 0.8
200 13.8 0.2 0.3 0.3 1.0 0.2 0.7
12 in. w.c. /
30 mbar
20% Gauge
1 0.07 0.5 0.6 0.8 1.2 1.1 1.4 1.5 1.3 1.5
2 0.14 0.3 0.3 0.8 0.9 1.2 1.3 1.4 0.9 1.6 1.8
5 0.34 0.3 0.3 0.9 0.6 1.2 1.1 1.6 1.8 1.7 1.9
8 0.55 0.3 0.3 0.9 0.8 1.1 1.1 1.6 1.7 1.8 1.9
20 1.4 0.3 0.2 0.9 1.0 1.1 1.3 1.5 1.6 1.4 1.7
35 2.4 0.4 0.2 0.9
0.9 0.9 1.1 1.1 1.4 1.6 2.2
60 4.1 0.4 0.3 0.7 0.8 0.9 1.1 1.0 1.9 1.4 2.1
75 5.2 0.3 0.3 0.7 0.8 0.7 1.0 0.9 1.8 1.2 1.7
100 6.9 0.3 0.3 0.7 0.8 0.5 1.1 0.6 1.6 0.7 1.5
125 8.6 0.3 0.3 0.4 0.8 0.7 1.3 0.5 1.1
150 10.3 0.3 0.3 0.4 0.8 0.3 1.1
175 12.1 0.3 0.3 0.3 1.0 0.2 1.1
200 13.8 0.4 0.3 0.3 1.0 0.2 0.8
16 in. w.c. /
40 mbar
20% Gauge
1 0.07 0.7 1.0 1.3 1.3 1.5 1.8 1.6 2.2
2 0.14 0.3 0.3 0.8 1.0 1.4 1.3 1.7 1.4 1.9 1.9
5 0.34 0.4 0.4 1.0 0.8 1.3 1.3 1.9 2.0 1.9 2.2
8 0.55 0.3 0.4 0.9 0.9 1.2 1.3 1.8 2.0 1.9 2.1
20 1.4 0.3 0.3 0.9 1.0 1.2 1.4 1.5 1.9 1.6 2.1
35 2.4 0.4 0.3 1.0 1.0 1.0 1.4 1.1 1.9 1.7 2.1
60 4.1 0.3 0.4 0.8 1.0 0.9 1.2 1.2 2.4 1.4 1.5
75 5.2 0.4 0.4 0.9 1.0 0.7 1.2 0.9 2.5 1.2 1.9
100 6.9 0.3 0.4 0.7 0.9 0.6 1.5 0.7 2.0 0.8 1.7
125 8.6 0.4 0.3 0.6 1.0 0.7 1.4 0.6 1.5
150 10.3 0.3 0.3 0.4 1.0 0.6 1.0
175 12.1 0.3 0.3 0.3 1.1 0.5 1.4
200 13.8 0.4 0.3 0.4 1.1 0.5 1.2
- Black areas indicate where desired ow capacity is not obtainable for a given inlet pressure.
- Shaded areas indicate where maximum operating inlet pressure for a given orice size is exceeded.
Table 11. C
v
Coefcient of T205 Series with 3/4 in. / DN 20 Body Size (continued)
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