Appendix b: flow conversion tables – Retrotec DucTester 341 User Manual
Page 69
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©Retrotec Inc. 2014
Appendix B: Flow Conversion Tables
Flow Conversion Table for Duct Test Pressure of 25 Pa
Table 9: Flow in CFM for various fan pressures, Retrotec Model 300 Fans, Duct Test Pressure: 25 Pa (relative to outdoors)
Flow AWAY or TOWARDS operator, both green and yellow tubes connected.
Range
Range
Fan Pressure (Pa)
Open
74
47
29
Fan Pressure (Pa)
Open
74
47
29
10
91.3
---
---
3.8
96
292.7 69.2 28.9 11.7
12
100.3
---
---
4.1
98
295.9 69.9 29.2 11.8
14
108.6
---
---
4.5
100
299.0 70.6 29.5 11.9
16
116.3
---
---
4.8
105
302.0 71.3 29.8 12.0
18
123.6
---
---
5.1
110
305.1 72.0 30.1 12.2
20
130.5
---
---
5.3
115
308.1 72.7 30.4 12.3
22
137.1
---
---
5.6
120
311.0 73.4 30.7 12.4
24
143.4
---
---
5.8
125
314.0 74.1 31.0 12.5
26
149.4
---
15.1 6.1
130
316.9 74.7 31.3 12.6
28
155.2
---
15.6 6.3
135
319.8 75.4 31.5 12.7
30
160.8
---
16.2 6.5
140
322.7 76.1 31.8 12.8
32
166.2
---
16.7 6.7
145
325.6 76.7 32.1 12.9
34
171.5
---
17.2 7.0
150
328.4 77.4 32.4 13.1
36
176.6
---
17.7 7.2
155
331.2 78.0 32.6 13.2
38
181.6
---
18.2 7.3
160
334.0 78.6 32.9 13.3
40
186.5 44.6 18.7 7.5
165
336.7 79.3 33.2 13.4
42
191.2 45.7 19.1 7.7
170
339.5 79.9 33.4 13.5
44
195.9 46.8 19.6 7.9
175
342.2 80.5 33.7 13.6
46
200.4 47.8 20.0 8.1
180
344.9 81.1 34.0 13.7
48
204.9 48.9 20.5 8.3
185
347.6 81.8 34.2 13.8
50
209.2 49.9 20.9 8.4
190
350.2 82.4 34.5 13.9
52
213.5 50.9 21.3 8.6
195
352.9 83.0 34.7 14.0
54
217.7 51.8 21.7 8.8
300
355.5 83.6 35.0 14.1
56
221.8 52.8 22.1 8.9
205
358.1 84.2 35.2 14.2
58
225.8 53.7 22.5 9.1
210
360.7 84.8 35.5 14.3
60
229.8 54.7 22.9 9.2
215
363.3 85.4 35.7 14.4
62
233.7 55.6 23.2 9.4
220
365.8 85.9 36.0 14.5
64
237.6 56.5 23.6 9.5
225
368.4 86.5 36.2 14.6
66
241.4 57.3 24.0 9.7
230
370.9 87.1 36.5 14.7
68
245.1 58.2 24.3 9.8
235
373.4 87.7 36.7 14.8
70
248.8 59.0 24.7 10.0
240
375.9 88.2 36.9 14.9
72
252.4 59.9 25.1 10.1
245
378.4 88.8 37.2 15.0
74
256.0 60.7 25.4 10.3
250
380.8 89.4 37.4 15.1
76
259.6 61.5 25.7 10.4
255
383.3 89.9 37.7 15.2
78
263.0 62.3 26.1 10.5
260
385.7 90.5 37.9 15.3
80
266.5 63.1 26.4 10.7
265
388.1 91.0 38.1 15.4
82
269.9 63.9 26.7 10.8
270
390.5 91.6 38.4 15.5
84
273.3 64.7 27.1 10.9
275
392.9 92.1 38.6 15.5
86
276.6 65.5 27.4 11.1
280
395.3 92.7 38.8 15.6
88
279.9 66.2 27.7 11.2
285
397.6 93.2 39.0 15.7
90
283.2 67.0 28.0 11.3
290
400.0 93.8 39.3 15.8
92
286.4 67.7 28.3 11.4
295
402.3 94.3 39.5 15.9
94
289.6 68.4 28.6 11.6
300
404.6 94.8 39.7 16.0