| Disc Diffusers | Tube Diffusers | Blowers/Packages | Support Stands | Pipes | Accessories | Membranes |
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| Universal RAI® Pressure table Pressure ratings based on inlet air at standard pressure of 14.7 psia, standard temperature of 68ºF, and specific gravity of 1.0. | ||||||||||
| Frame Size |
Speed RPM |
1 PSI CFM BHP |
2 PSI CFM BHP |
4 PSI CFM BHP |
6 PSI CFM BHP |
7 PSI CFM BHP |
8 PSI CFM BHP |
10 PSI CFM BHP |
12 PSI CFM BHP |
15 PSI CFM BHP |
| 22 | 1160 3600 5275 |
10 0.2 49 0.6 76 0.8 |
7 0.3 46 0.8 73 1.2 |
2 0.4 41 1.3 68 1.9 |
38 1.8 64 2.7 |
36 2.1 63 3.1 |
35 2.3 61 3.4 |
32 2.8 59 4.2 |
29 3.3 56 4.9 |
|
| 24 | 1160 3600 5275 |
24 0.3 102 0.8 156 1.2 |
19 0.4 97 1.3 150 1.9 |
11 0.8 89 2.3 143 3.4 |
83 3.3 137 4.9 |
81 3.8 135 5.6 |
||||
| 32 | 1160 2800 3600 |
40 0.4 113 1.0 149 1.3 |
34 0.6 108 1.6 144 2.0 |
27 1.1 101 2.7 137 3.4 |
21 1.6 95 3.8 131 4.8 |
19 1.8 93 4.3 129 5.5 |
17 2.0 90 4.9 126 6.3 |
86 6.0 122 7.7 |
82 7.1 118 9.1 |
77 8.7 113 11.2 |
| 33 | 1160 2800 3600 |
55 0.5 156 1.2 205 1.6 |
48 0.8 149 2.0 199 2.5 |
39 1.4 140 3.5 189 4.5 |
31 2.1 132 5.0 181 6.4 |
28 2.4 129 5.7 178 7.4 |
126 6.5 175 8.5 |
120 8.0 170 10.3 |
116 9.5 165 12.2 |
|
| 36 | 1160 2800 3600 |
95 0.7 262 2.0 344 2.9 |
85 1.2 253 3.3 334 4.5 |
72 2.3 239 5.8 321 7.7 |
61 3.3 229 8.3 310 10.9 |
57 3.8 224 9.5 306 12.5 |
||||
| 42 | 869 1760 3600 |
38 0.4 92 0.8 204 1.7 |
32 0.6 87 1.3 198 2.6 |
24 1.1 78 2.2 190 4.5 |
18 1.5 72 3.1 183 6.4 |
15 1.8 69 3.6 181 7.4 |
67 3.9 178 8.4 |
62 5.0 173 10.2 |
58 5.9 169 12.1 |
163 15.0 |
| 45 | 860 1760 3600 |
79 0.6 188 1.3 410 3.4 |
68 1.1 177 2.2 400 5.3 |
53 2.0 162 4.1 385 9.1 |
42 2.9 151 5.9 374 12.9 |
37 3.4 146 6.9 369 14.8 |
141 7.8 364 16.7 |
133 9.6 356 20.5 |
||
| 47 | 860 1760 3600 |
79 0.6 249 1.6 542 4.5 |
92 1.4 236 2.8 529 7.0 |
73 2.6 217 5.3 510 12.0 |
59 3.8 203 7.7 496 17.0 |
53 4.4 196 8.9 490 19.5 |
||||
| 53 | 700 1760 2850 |
72 0.6 211 1.7 355 3.3 |
63 1.0 203 2.7 346 5.0 |
51 1.8 191 4.7 334 8.2 |
42 2.6 181 6.7 325 11.5 |
38 3.0 177 7.7 321 13.2 |
173 8.7 317 14.8 |
167 10.8 310 18.1 |
160 12.8 304 21.3 |
295 26.2 |
| 56 | 700 1760 2850 |
123 0.9 358 2.6 598 5.2 |
110 1.6 345 4.6 585 8.0 |
92 2.9 326 7.7 567 13.5 |
78 4.3 312 11.1 553 19.0 |
72 4.9 306 12.8 547 21.7 |
66 5.6 300 14.5 541 24.5 |
290 17.9 531 30.0 |
||
| 59 | 700 1760 2850 |
187 1.2 529 3.9 881 7.8 |
170 2.2 513 6.4 865 11.8 |
147 4.2 490 11.4 842 19.9 |
130 6.1 472 16.3 824 27.9 |
464 18.8 816 31.9 |
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| 65 | 700 1760 2350 |
140 1.0 400 3.4 546 5.2 |
126 1.8 387 5.3 532 7.7 |
107 3.3 368 9.1 513 12.8 |
93 4.8 353 12.8 499 17.8 |
86 5.5 347 14.7 492 20.3 |
80 6.3 341 16.6 486 22.9 |
70 7.8 330 20.4 475 27.4 |
320 24.2 466 32.9 |
307 29.8 452 40.5 |
| 68 | 700 1760 2350 |
224 1.5 643 4.9 876 7.3 |
203 2.7 621 7.9 855 11.4 |
172 5.1 591 14.0 824 19.5 |
149 7.5 567 20.0 801 27.6 |
139 8.7 557 23.1 790 31.6 |
129 9.9 548 26.1 781 35.7 |
530 32.2 763 43.8 |
515 38.2 748 51.9 |
|
| 615 | 700 1760 2350 |
420 2.6 1205 8.1 1641 11.9 |
380 4.8 1164 13.9 1601 19.3 |
323 9.3 1107 25.2 1544 34.6 |
279 13.8 1063 36.5 1500 49.8 |
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| 76 | 575 1400 2050 |
195 1.3 526 4.0 788 6.9 |
179 2.3 511 6.4 772 10.5 |
158 4.3 490 11.5 751 17.8 |
142 6.4 473 16.4 734 25.0 |
134 7.4 466 18.8 727 28.6 |
128 8.4 454 21.3 716 32.3 |
115 10.4 447 26.3 708 39.5 |
436 31.2 697 46.7 |
421 38.6 682 57.6 |
| 711 | 575 1400 2050 |
362 2.2 970 6.5 1450 10.9 |
336 4.0 944 11.0 1424 17.5 |
299 7.7 908 20.0 1387 30.7 |
271 11.4 880 29.0 1359 43.9 |
258 13.3 867 33.5 1347 50.5 |
247 15.1 856 38.0 1335 57.1 |
226 18.8 835 47.1 1315 70.3 |
||
| 718 | 575 1400 2050 |
600 3.3 1590 9.7 2370 15.7 |
563 6.3 1553 17.0 2333 26.9 |
510 12.3 1500 31.6 2280 47.9 |
470 18.4 1460 46.3 2240 69.4 |
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