CFM PERCOOL

Linear Bar Diffuser
VELOCITY : pm based on core area. THROW and DROP : Feet. PRESS : Toil pressure in inches of water
Nom. Width
CFM Per Feet
20
30
40
50
60
80
100
125
150
200
250
300
1½”
VEL
THROW PRESS
320
5-5-6 0.015
480 8-10-12 0.034
640 10-14-18 0.060
800
13-19-23 0.095
960
15-22-28 0.135
1280
18-29-37 0.240
1600 21-35-44 0.375
–
–
–
–
–
–
–
–
–
–
–
–
–
–
–
2″
VEL
THROW PRESS
190
3-4-5
0.007
290
6-7-8
0.015
385 8-11-12 0.027
480 10-15-16 0.042
575 12-18-20 0.060
770 15-24-27 0.108
960 18-30-33 0.168
1200 21-36-41 0.262
1440 24-41-49 0.380
– – –
–
–
–
–
–
–
2½”
VEL
THROW PRESS
–
–
–
205
5-6-7
0.009
275
7-9-10
0.015
345 8-12-13
0.024
410 10-15-16 0.034
550 13-20-23 0.060
685 16-25-28 0.094
855 19-30-36 0.147
1030 22-36-42 0.210
1370 27-45-53 0.380
– – –
–
–
–
3″
VEL
THROW PRESS
–
–
–
–
–
–
215 6-8-10 0.010
265 7-11-13 0.015
320 9-14-15 0.022
425 12-18-20 0.038
535 14-22-25 0.060
665 17-27-30 0.095
800 19-31-36 0.135
1070 24-39-47 0.240
1330 28-47-56 0.375
–
–
–
3½”
VEL
THROW PRESS
–
–
–
–
–
–
–
–
–
220 7-11-12 0.010
260 8-13-14 0.015
350 11-18-19 0.016
435 13-21-23 0.042
545 16-25-28 0.065
655 18-29-34 0.093
875 22-37-43 0.165
1090 27-44-53 0.255
1310 30-51-61 0.370
4″
VEL
THROW PRESS
–
–
–
–
–
–
–
–
–
–
–
–
220
7-12-14
0.012
295 10-15-18 0.020
370 12-19-22 0.032
460 15-23-27 0.046
555 17-26-32 0.069
740 21-33-41 0.122
920 24-40-50 0.189
1110 28-45-58 0.276
DROP
2.0-3.0 -3.5
2.5-4.0 -5.0
3.0-5.0 -6.5
3.0-5.5 -7.5
3.5-6.0 -7.5
3.5-6.5 -8.0
3.5-7.0 -9.0
4.0-8.0 -9.5
4.5-8.5 -11
5.0-9.5 -13
5.5-10.5 -14
6.0-11 -15
NOTE: Throw and Drop plues are for 1″ , 5″ , and 10″ lengths respectively and are based on a Temporature Differential of 20°F

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