Hitachi YUTAKI M Bedienungsanleitung Seite 31

On graphic below, required concentration depending on outside temperature is shown.
0
-5
-10
-15
-20
-25
-30
-35
-40
-45
-50
0 10
Burst point acc. to DIN 51583
0
-5
-10
-15
-20
-25
-30
-35
-40
-45
-50
0 10
Burst point according to
DIN 51583

NOTE
• Freezing point according to ASTM D1177 is the temperature for the first ice crystal formation.
• The requirements of table must be always compared with glycol manufacturer specifications.
• Maximum concentration of glycol is 45%.
• If system is only prevented against bursting, pump must not be turned on (the liquid inside might
be still frozen).
PMEN0647 rev.0 - 11/2023
Frost protection
20 30
% Volume propylene glycol coolant
Frost protection
Frost protection
20 30
% Volume etylene glycol coolant
Frost protection
40 50
Freezing point according to ASTM D1177
40 50
Freezing point according to ASTM D1177
60 70
5
60 70
23