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The Armstrong 4280 horizontal end-suction pumps are equipped with close-coupled motors to minimize footprint requirements.
Features
  • ANSI style centerline discharge casing eliminates casing vapor lock 
  • Sintered silicon carbide mechanical seal seat for longer life 
  • Confined casing gasket eliminates blow-outs 
  • Pre-lubricated and sealed ball bearings for convenient installation (simply pipe, align, wire and start) 
  • Motor feet mounting only needed with over-hung casing 
  • Compact design
  • Armstrong 4280 pumps are equipped with high-efficiency NEMA-premium motors for significant reduction in energy consumption and cost
  • All motors are suitable for inverter-fed service
  • Universal replacement seals, bearings, and motors available locally world-wide 
  • ANSI-style centerline discharge casing eliminates air binding 
  • Pre-lubricated and sealed ball bearings eliminate lubrication requirements

Specifications

Materials

  • Cast Iron
  • Ductile Iron
  • Bronze Casing
  • Bronze Impeller

Performance Range

  • Up to 2,000 USgpm (125 L/s) flow, up to 400 ft (120 m)

Temperature

  • 250° F (121° C)

Power Range

  • 0.33 hp to 60 hp (0.25 kW to 45 kW)

Size

  • 1” to 6” (25 mm to 150 mm)

  • HVAC-system pumping; light industrial/ process pumping
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