10.7.3 TCU coolant specifications
TCU water quality specifications
Tap water can be used to prepare the coolant, when the coolant temperature (mixer
jacket temperature) is designated to be between 6°C and 65°C (the temperature of the
disposable bag contents is between 10°C and 60°C ). The water quality must be within
the guidelines shown below. Deionized water is not suitable.
Contact the TCU manufacturer for additional information.
SpecificationParameter
NoneSuspended solids
50 to 600 µS/cmConductivity
< 80 °dHHardness
7.8pH
NoneCO
2
aggressive
< 0.3 mg/LIron
< 0.05 mg/LManganese
< 250 mg/LSulfate
< 250 mg/LChloride
< 40 mg/LCOD
< 1000 CFU/mLBacteria
TCU coolant composition
The use of corrosion inhibitor in the coolant is optional. If the vessel jacket temperature
is expected to be below +6°C, antifreeze needs to be added to TCU coolant.
The table below shows an example coolant composition (containing corrosion inhibitor)
that allows the vessel jacket temperature to decrease to -15°C without freezing.
ComponentAmount (%)
OptiShield
®
Plus10
propylene glycol50
water40
288 Xcellerex XDM 50-1000, XDUO 100-1000 mixers Operating Instructions 29251615 AD
10 Reference information
10.7 Temperature control unit
10.7.3 TCU coolant specifications
To Next Page
