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SES Residential & Commercial Controls
Constant Pressure Controls
Custom PCB Solutions
PRIMEX Municipal Water Controls
PRIMEX Industrial Water Controls



SJE-Rhombus Products

SJE-Rhombus offers a variety of control solutions for residential, commercial, municipal and industrial applications.

Sump, Effluent and Sewage Controls

Sump, Effluent and Sewage Residential & Commercial Controls

SJE-Rhombus offers a variety of solutions for residential and commercial applications. 

  • Control panels provide pump control and alarm notification in one package. 
  • Constant Pressure Controls control three phase pumps and maintain constant pressure.
  • Alarms provide audible and visual warning of a potentially threatening level condition. 
  • Pump switches provide automatic pump control.
  • Control switches accurately monitor levels and activate control panels and alarms.

ConstantPressureControls-background-irrigator.jpgConstant Pressure Controls
Constant Pressure Controls are economical, pre-engineered solutions for variable speed pumping applications including submersible deep well pumps, boosters pumps and irrigation pumps. 

Embedded Controls

Custom Embedded Controls
SJE-Rhombus designs, tests and builds custom electronic controls for a variety of OEMs (original equipment manufacturers).  Our goal is to provide you with quality products, delivered on time, and at a reasonable price.  Services include custom circuit schematic design, printed circuit board layout, firmware/software development, prototyping, validation testing, volume production and value engineering.

Engineered ControlsPRIMEX® Municipal and Industrial Water Control Solutions
PRIMEX® water control solutions for municipal and industrial applications are designed to meet individual specifications featuring variable frequency drives, remote monitoring, service entrance ratings, reduced voltage starters, programmable logic controllers, telemetry/SCADA and more.

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