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Fluids Table 2: Minimum Required Flow Rate (gpm) for Nonlaminar Flow
Re>3000
 
Fluid
(% by weight)
t = 30 deg F
Nominal Diameter SDR 11 Pipe
t = 50 deg F
Nominal Diameter SDR 11 Pipe
3/4 in.
1 in.
1 1/4 in.
1 1/2 in.
3/4 in.
1 in.
1 1/4 in.
1 1/2 in.
20% Ethanol
3.8
4.8
6.0
6.9
2.6
3.2
4.0
4.6
20% Ethylene Glycol
2.5
3.1
3.9
4.5
1.8
2.2
2.8
3.1
20% Methanol
2.9
3.6
4.5
5.2
2.0
2.5
3.1
3.5
20% Propylene Glycol
3.4
4.2
5.4
6.1
2.3
2.8
3.6
4.1
20% Calcium Chloride
2.3
2.9
3.6
4.1
1.4
2.0
2.5
2.6
Water
--
--
--
--
1.1
1.4
1.7
2.0

 

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