September 17, 2014
SJE-Rhombus introduces the VARIOspeed® series of economical, pre-engineered constant pressure controls for variable speed pumping applications.
SJE-Rhombus®, an industry leader in providing quality control solutions for water and wastewater applications, introduces the VARIOspeed® series of constant pressure controls for variable speed pumping applications, including submersible deep well pumps, booster pumps and irrigation pumps.
The VARIOspeed® series offer an economical, pre-engineered control solution using a factory-programmed variable frequency drive in a NEMA 1 or NEMA 3R enclosure with a user friendly keypad and backlit display for easy installation and setup. The VFD automatically controls the pump speed to maintain a constant discharge pressure. Automatically adjusting pump speed to match lower demands can result in energy savings of up to 50%.
VARIOspeed® controls are available in two styles: VARIOspeed® N1 in a NEMA 1 rated enclosure for indoor applications; VARIOspeed® 3R in a NEMA 3R rated enclosure for indoor/outdoor applications. Both styles are available in 1.5HP through 20HP and include the LCD display which is designed with the pump end user in mind. The visualization and configuration of the system is simplified using pump terminology to allow non-VFD experts a greater comfort level with the drive. The system offers PID control, adjustable electronic overload, Auto Start on pressure drop (adjustable) and Auto Stop on low Hz (no-flow - sleep mode). Each VARIOspeed® control includes a 0-200 PSI pressure transducer. UL/cUL Listed. Five-year limited warranty, one-year limited warranty on transducer.
Learn more about our VARIOspeed® constant pressure controls.