Goulds Pumps Hydrovar controller is a combination of a variable frequency drive and a programmable logic controller (PLC) in one compact package, which can be mounted on the fan cover of a TEFC pump motor. Drives are pre-programmed with patented pump specific software, designed for centrifugal pumps. They match pump output to a wide range of system conditions while protecting the pump, the motor and the pumping system.
Hydrovar drives provide superior system pressure control over a wide range of flow rates. As demand changes the drive adjusts the speed of the motor to compensate, keeping output pressure nearly constant. And Hydrovar drives reduce energy usage and cost. By slowing the speed of the pump, the Hydrovar eliminates the inefficiencies of full speed systems. With lower energy and maintenance costs they can pay for themselves in under 2 years!
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