Technical Information; Reservoir Fluids - Ametek BrookField TC Series Operator's Manual

Technical Information

Reservoir Fluids

Depending on your needs, a variety of fluids can be used with your Circulator. No matter what bath fluid is
selected, it must be chemically compatible with the reservoir and the materials in your Circulator. It must
also be suitable for the desired temperature range.
WARNING: Do not use a flammable liquid as a bath fluid as a fire hazard may result.
WARNING: Always use fluids that satisfy safety, health, and equipment compatibility requirements.
Be aware of the chemical hazards that may be associated with the bath fluid used. Observe all
safety warnings for the fluids used as well as those contained in the material safety data sheet.
For optimum temperature stability, the fluid's viscosity should be 50 centistokes (cSt) or less at its lowest
operating temperature. This permits good fluid circulation and minimizes heating from the pump.
For temperatures from 10°C to 90°C, distilled water is recommended. For temperatures below 10°C, a
mixture of laboratory grade ethylene glycol and water should be used. Do not use deionized water.
The following chart is intended to serve as a guide in selecting a bath fluid for your application. For
optimum temperature stability and low vaporization, be sure to stay within the fluid's normal temperature
range.
You are responsible for proper selection and use of the fluids. Avoid extreme range operation.
Fluid Description
distilled water
TC-Fluid 3
TC-Fluid 4
TC-Fluid 5
TC-Fluid 2
*WARNING: This is the fluid's flash point temperature.
110-512 BEL/EN
Specific Heat
Viscosity
(cSt)
@ Fluid
@ 25°C
Temperature
1 50°C
50 100°C
125 150°C
3 -30°C
20 -20°C
BTU/lb°F KJ/Kg°C
1.00 4.18
0.41 1.71
0.40 1.67
0.62 2.59
0.78 3.26
Normal Extreme
Temperature Temperature
Range Range
10° to 90°C 2° to 100°C
50° to 150°C 5° to 270°C*
100° to 200°C 80° to 232°C*
-50° to 100°C -62° to 118°C
-25° to 100°C -30° to 115°C
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