Sterling GP Series specifications Ethylene Glycol and Propylene Glycol Curves, Gl ycol by Vol um e

Models: GP Series

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Figure 2: Ethylene Glycol and Propylene Glycol Curves

Figure 2: Ethylene Glycol and Propylene Glycol Curves

Pe rce nt Glyc ol Cu rves for Free ze P rotec tion

40.0

 

 

 

 

 

 

30.0

 

 

 

 

 

 

20.0

 

 

 

Eth ylene G lycol

 

 

 

 

Prop ylene

Glycol

 

 

 

 

 

 

10.0

 

 

 

 

 

 

0.0

 

 

 

 

 

 

-10.0

 

 

 

 

 

 

-20.0

 

 

 

 

 

 

-30.0

 

 

 

 

 

 

-40.0

 

 

 

 

 

 

-50.0

 

 

 

 

 

 

-60.0

 

 

 

 

 

 

0.0

10.0

20.0

30.0

40.0

50.0

60.0

% Gl ycol by Vol um e

Example: 45°F set point minus 20°F = 25°F.

From Figure 28, 25°F equates to 10% by volume of glycol required.

GP Series Portable Chillers

Chapter 3: Installation

18 of 44

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Sterling GP Series Ethylene Glycol and Propylene Glycol Curves, Example 45F set point minus 20F = 25F, Gl ycol by Vol um e