The Amarex KRT jacket-cooled wastewater pump from KSB features a sealed, closed-loop cooling system that uses an environmentally safe propylene glycol/water mix. The 38/62 antifreeze mixture protects the pump in temperatures down to -4 degrees F, while an impeller inside the pump circulates the glycol/water mixture around the motor and over a heat exchanger at the bottom of the pump, dissipating heat into the pumped liquid.Mark Batcha, manager, KSB South-West Region, says the cooling-jacket pumps are designed for continuous duty in wet or dry environments.“If the dry environment floods, the submersible motor is protected,” he says. “Where the pump is
