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Material Selection for Ethylene Glycol / Water Pump

Material Selection for Ethylene Glycol / Water Pump

Material Selection for Ethylene Glycol / Water Pump

(OP)
I'm considering an AC motor driven, positive displacement pump for use in a cooling system where the coolant is a 50/50 mix of water and ethylene glycol.  Can hardened alloy steels be safely used (pump gears, shaft, etc.) in this environment if a corrosion inhibitor is used?  Also, can the motor be run wet so the coolant can also be used to cool the motor windings without using exotic corrosion resistant materials?

Thanks.  

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