4312

  • ApplicationsHVAC-system pumping; general purpose pumping; industrial/process pumping (water or glycol based)
    Armstrong Design Envelope Pumps with integrated controllers are OSHPD pre-approved!
  • DescriptionPipe-mounted 2-pump unit with integrated intelligent controls for space-saving installation, superior energy performance, and full redundancy during operation. Saves up to 75% in energy over comparable traditional constant speed or variable frequency operated pump installations.
  • Materials
    • Cast or ductile iron casing
    • Cast iron or bronze impeller
    • Sintered silicon carbide mechanical seal

 

  • ConfigurationOn-board Intelligent Variable Speed controls with Sensorless control. Controls enclosure UL type 12 or UL type 4X (outdoor applications). High-efficiency NEMA premium motors available. Inside single-spring mechanical seals.
  • Performance rangeUp to 1250 USgpm (80 L/s) flow and 250 ft (75 m) head
  • Temperature250oF (121oC)
  • Power Range1 hp to 40 hp (0.75 kW to 30 kW)
  • Size2″ to 6” (50 mm to 150 mm)
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