
Bulletin 74.1:T205
16
Table 9. Flow Capacities of Type T205M with 3/4 in. / DN 20 Body Size (continued)
SPRING RANGE
AND COLOR
OUTLET
PRESSURE
SETTING
OFFSET FROM
SETPOINT
INLET
PRESSURE
CAPACITIES IN SCFH / Nm
3
/h OF AIR
Orice Size, In / mm
1/8 / 3.2 1/4 / 6.4 3/8 / 9.5 1/2 / 13 9/16 / 14
psig bar SCFH Nm
3
/h SCFH Nm
3
/h SCFH Nm
3
/h SCFH Nm
3
/h SCFH Nm
3
/h
2.5 to 7 in. w.c. /
6.2 to 17 mbar
Red
4 in. w.c. /
10 mbar
-1 to 2 in. w.c. /
-2.5 to 5.0 mbar
1 0.07 81 2.17 160 4.29 265 7.10 289 7.75 302 8.09
2 0.14 95 2.55 259 6.94 284 7.61 265 7.10 472 12.6
5 0.34 170 4.56 190 5.09 444 11.9 674 18.1 741 19.9
10 0.69 249 6.67 521 14.0 637 17.1 976 26.2 1057 28.3
15 1.0 311 8.33 698 18.7 928 24.9 1222 32.7 1286 34.5
20 1.4 212 5.68 770 20.6 995 26.7 1183 31.7 1546 41.4
30 2.1 455 12.2 1138 30.5 1424 38.2 1992 53.4 1428 38.3
40 2.8 565 15.1 1210 32.4 1457 39.0 3542 94.9
60 4.1 748 20.0 1516 40.6 1489 39.9
80 5.5 893 23.9 1548 41.5 2124 56.9
100 6.9 1048 28.1 1613 43.2
125 8.6 1249 33.5 1609 43.1
150 10.3 1402 37.6 3764 101
175 12.1 1761 47.2 3782 101
200 13.8 2191 58.7
7 in. w.c. /
17.4 mbar
-2 to 2 in. w.c. /
-5.0 to 5.0 mbar
1 0.07 69 1.85 182 4.88 308 8.25 358 9.59 507 13.6
2 0.14 104 2.79 297 7.96 500 13.4 448 12.0 765 20.5
5 0.34 189 5.07 390 10.5 681 18.3 1091 29.2 1143 30.6
10 0.69 279 7.48 809 21.7 1091 29.2 1576 42.2 1720 46.1
15 1.0 338 9.06 1054 28.2 1462 39.2 1823 48.9 2337 62.6
20 1.4 366 9.81 1250 33.5 1806 48.4 2277 61.0 3029 81.2
30 2.1 516 13.8 1663 44.6 2603 69.8 4708 126 3955 106
40 2.8 641 17.2 2004 53.7 2562 68.7 5000 134
60 4.1 903 24.2 2514 67.4 4409 118
80 5.5 1136 30.4 2983 79.9 6144 165
100 6.9 1376 36.9 3813 102
125 8.6 1680 45.0 4612 124
150 10.3 1967 52.7 6810 183
175 12.1 2263 60.6 8191 220
200 13.8 2565 68.7
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 60 1.61 188 5.04 230 6.16 314 8.42 295 7.91
2 0.14 100 2.68 269 7.21 363 9.73 276 7.40 458 12.3
5 0.34 177 4.74 309 8.28 554 14.8 874 23.4 942 25.2
8 0.55 234 6.27 550 14.7 726 19.5 1111 29.8 1186 31.8
20 1.4 239 6.41 1002 26.9 1327 35.6
1746 46.8 1861 49.9
35 2.4 397 10.6 1402 37.6 1973 52.9 3390 90.9 2965 79.5
60 4.1 854 22.9 1974 52.9 2333 62.5 4429 119 4359 117
75 5.2 999 26.8 2381 63.8 2827 75.8 4912 132 5398 145
100 6.9 1311 35.1 2644 70.9 5222 140 6067 163 5169 139
125 8.6 1477 39.6 3586 96.1 5536 148 5335 143
150 10.3 1754 47.0 3923 105 3915 105
175 12.1 2131 57.1 6103 164 5346 143
200 13.8 2330 62.4 6821 183 5039 135
12 in. w.c. /
30 mbar
20% Gauge
1 0.07 147 3.94 193 5.17 261 6.99 268 7.18
2 0.14 97 2.60 264 7.08 364 9.76 260 6.97 521 14.0
5 0.34 172 4.61 275 7.37 553 14.8 894 24.0 950 25.5
8 0.55 225 6.03 517 13.9 725 19.4 1117 29.9 1191 31.9
20 1.4 241 6.46 1073 28.8 1438 38.5 1793 48.1 1897 50.8
35 2.4 372 9.97 1481 39.7 1837 49.2 2301 61.7 3528 94.6
60 4.1 837 22.4 2038 54.6 2701 72.4 4702 126 5023 135
75 5.2 1028 27.6 2335 62.6 3159 84.7 5420 145 5045 135
- 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 orice size is exceeded.
- continued -
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