Grundfos Geo-Flo MAGNA3 - Page 20

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MAGNA3 INSULATED PUMPS INSTALLATION MANUAL
Figure 17: Freeze Protection Curves
.96
.97
.98
.99
1.00
-20-100 10203040
Specific Gravity
Freeze Protection Temperature ( ˚F)
Methanol Mixture
Environol™ Mixture
* With reference to 60°F water courtesy of Carbide and
Carbon Chemicals Corporation
35
-10
-5
0
10
15
20
25
30
1009080706050403020010
˚F
% by Volume
5
Figure 19: Environol™ 2000 Freeze Protection (Concentrate)
Figure 18: Environol™ 1000 Freeze Protection (Premixed)
35
-10
-5
5
10
15
20
25
30
350 5 10 15 20 25 30 40
˚F
% by Volume
0
1.000
0.900
10
20
30
40
50
60
70
80
90
10
P/N: CAMT
Methanol Hydrometer
Antifreeze Selection and Use cont.