Hale FoamLogix 6.5 - Manual (Page 63)

63 FoamLogix 3.3 / 5.0 / 6.5 Installer / Operations Manual
p/n: 029-0021-68-0
Ins ta lle r Ins ta lla tion
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Refer to Table 3-10: “Pipe Size vs.
Minimum Straight Run” for pipe
size. Selecting the next smaller
pipe permits reducing the straight
pipe run the required distance prior
to the flow sensor paddle wheel.
In the short length of reduced pipe
pressure loss is minimal and there
is minimal pressure loss through
elbows and fittings. (See Figure 3-
11: “Typical Reduced Size Sensor
Piping Arrangement.”)
Excessive turbulence in the flow sensor may produce unstable and inaccu-
rate flow readings. The length of straight pipe prior to the flow sensor must
be sufficient to reduce any turbulence in the pipe.
The following guidelines help attain the best readings, and maintain Hale
FoamLogix system accuracy.
Figure 3-11: Typical Reduced Size Sensor Piping Arrangement
A minimum of 6 times the pipe diameter of straight run pipe without any fit-
tings is necessary prior to the flow sensor paddle wheel. (See Figure 3-12:
“Flow Sensor Placement,” on page 64.)
Pipe Sizes
Minimum
Recommended Straight
Run Pipe
1-1/2" (38mm) 9" (229mm)
2" (51mm) 12" (305mm)
2-1/2" (64mm) 15" (381mm)
3" (76mm) 18" (457mm)
4" (102mm) 24" (610mm)
Table 3-10: Pipe Size vs. Minimum
Straight Run