In-Line Constant Pressure System, 1-1/5HP, 230V

In-Line Constant Pressure System, 1-1/5HP, 230V
In-Line Constant Pressure System, 1-1/5HP, 230V QR Code
Views: 2033 Product Code: 90411101

MPN: 90411101

Weight:50.00 lb

Usually ships: 5-7 business days
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The 90411101 from Little Giant is an In-Line Constant Pressure System, 1-1/5HP, 230V. It provides consistent water pressure regulation using advanced electronics to drive the pump/motor according to the system's real-time demand. The Little Giant 25LGIL1100N4 includes highly accurate, heavy-duty, long-life pressure sensor for constant monitoring of the water pressure demand.

By adjusting the pump/motor speed, the Inline System automatically reacts to any change in system demand while maintaining a constant output pressure. The Inline System's constant output pressure should not fluctuate more than a PSI or two, even though the overall system's water flow requirement may change dramatically. Small demand on the system results in the motor/pump running at its lowest speed. As greater demands are placed on the system the speed increases accordingly to maintain the desired system pressure.


  • Boosted and consistent water pressure from water storage/cistern systems;
  • Homes - both in private and municipal applications;
  • General pressure boosting;
  • Sprinkler systems;
  • Farming and commercial wash down systems;


  • A complete and packaged system: Pump, motor, drive and pressure switch in one box
  • Small and compact design: Fits into small areas, even between floor joists
  • Stainless steel construction: Made for years of operation
  • Simple and easy installation: Step-by-step illustrated instructions
  • Quiet and cool operation: Integrated motor design allows water to flow around it
  • NEMA 4 electronics enclosure
  • Multiple mounting configurations
  • Install units where you need them: horizontal, vertical & even uPSIde down
  • Product power rating: 1.2 hp, 0.9 kW
  • Built in system protections guard the Inline unit from many common failure modes including: surge protection, voltage underload, locked pump, open circuit, short circuit and overheated controller.

Technical Specifications:

  • Flow range: Up to 35 GPM
  • Product power rating: 1.2 HP (0.9 kW)
  • Minimum incoming pressure: 3 - 5 PSI
  • Minimum incoming flow and cisterns: flooded suction without water vortexing
  • Maximum incremental pressure boost: 60 PSI
  • Maximum ambient operating temp: Continuous Operation: 104 °F (40 °C)
  • Maximum fl uid operating temp: 104 °F (40 °C)
  • Incoming voltage: 190 - 260 vac (Drive will operate at reduced power level at 190 vac.)
  • Frequency: 50/60 Hz
  • Operating frequency range: 20 - 63 Hz
  • Current (maximum): 12 Amps
  • Pressure setting from factory: 50 PSI (3.4 bar)
  • Pressure adjustment range: 25 - 80 PSI
  • Relative humidity: 0 - 100%, Condensing
  • Shipping weight: 50 lbs (22.7 kg)
Product Specs
Current (maximum):12 Amps
Flow Range:Up to 35 GPM
Frequency:50/60 Hz
Maximum fl uid operating temp:104 °F (40 °C)
Maximum incremental pressure boost:60 PSI
Minimum incoming flow and cisterns:flooded suction without water vortexing
Minimum incoming pressure:3 - 5 PSI
Operating frequency range:20 - 63 Hz
Pressure adjustment range:25 - 80 PSI
Pressure setting from factory:50 PSI (3.4 bar)
Product power rating:1.2 HP (0.9 kW)
Relative Humidity:0 - 100%, Condensing
Shipping weight:50 lbs (22.7 kg)
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