SJE-Rhombus’ variable frequency drives (VFD)
brochure offers a variety of constant pressure controls to suit specific application needs, including SubCon VFD for residential water well applications (1.5 to 3 hp); H2O Drive VFD for advanced pressure control (5.0-500 hp); VFDC-4000 controller for 2, 3 or 4 pump control (1 VFD per pump); and VFDC-1300 for 1, 2 or 3 pump control (1 VFD + motor starters).
