Armstrong Fluid Technology

Model Series 4300 - Split Coupled Vertical In-Line Pump



Pipe-mounted UL 778 pumping unit with integrated intelligent controls for space-saving installation and superior energy performance. Saves up to 75% in energy over comparable traditional constant speed or variable frequency operated pump installations. Remote services through internet to enhance reliability and sustain optimal performance over life of pumps.

  • Applications : HVAC-system pumping and control; general purpose pumping; industrial/process pumping and control (water or glycol based)
  • Materials
  • Ductile iron e-coated casing
  • Stainless steel impeller
  • Sintered silicon carbide mechanical seal
  • Configuration : On-board Intelligent Variable Speed controls with Sensorless control. Split-coupling design and outside balanced or inside single spring mechanical seal. Controls enclosure UL type 12 or UL type 4X for outdoor applications. 1-10hp range standard with iECM motors that reduce losses by more than 20% over NEMA Premium efficiency. Network capable for remote performance management services.
  • Performance range : 25 to 25,000 USgpm (1.5 to 1500 L/s) flow; 10 to 300 ft (3 to 90 m) head (composite curves available)
  • Temperature : 300oF (150oC)
  • Power Range ; 1 hp to 1250 hp (0.75 kW to 900 kW)
  • Size : 1.5' to 20” (40 mm to 500 mm)

  • Vertical In-line design eliminates the need for inertia bases, housekeeping pads, and flex connectors and reduces piping requirements
  • Integrated intelligent controls eliminate separate mounting of variable frequency drive (VFD) as well as procurement, installation (incl. wiring), calibration and upkeep of differential pressure sensor
  • Vertical motor positioning requires up to 60% less floor space compared to other pump configurations.
  • Expertly staggered product line for perfect pump match-up and selection especially in retrofit situations
  • Superior energy performance qualifies for significant cost recovery under utility and government rebate programs
  • Design Envelope selections frequently recommend a smaller motor and/or pump which reduces installed cost.

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