Pentair Aurora 421 Horizontal Two Stage Split Case Pump

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Pentair Aurora 421 Horizontal Two Stage Split Case Pump

Aurora built its business on the split case pump more than 90 years ago. Today, we continue to improve upon our original design and manufacture quality pumps that outlast our competitors.

KEY FEATURES

  • Model 421 is Horizontally Baseplate Mounted with a Driver Flexibly Coupled to the Pump
  • Design Recommended where Space is Available and Flooding is Not Possible
  • Interwoven, graphite/Teflon Lubricated Acrylic Yarn Packing Rings
  • Coupling Guard on the Model 421
  • Applications Include:
    • Cooling, Heating and Air Conditioning Service
    • Boiler Feed Service
    • Condensate Service
    • High Pressure Water Service
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Components

  • Split case design makes it easy to remove upper casing without disturbing suction and discharge for simpler servicing and inspection.
  • Dynamically balanced impeller is keyed to the shaft and secured by adjustable shaft sleeve.
  • Bronze shaft sleeve extends the entire length of each stuffing box to prevent shaft wear.
  • Interchangeable stuffing boxes come equipped with 303 stainless steel parts and Buna-N® elastomers for a longer pump life.
  • Mechanical seals are included in standard constructions and include carbon against ceramic face for optimal hot water performance.
  • Grease lubrication bearings are conveniently located for quick access and outfitted with oil seals and non-sparking neoprene rotating slingers to protect bearings during operation and washdowns.
  • High-load bearings provide a minimum of 50,000 hours of performance at maximum load thanks to double-row thrust ball bearings and arms that help eliminate misalignment.
  • Left-hand rotation is available with standard parts.
  • Performance certification with positive suction pressure or suction lift is available on each pump for customer approval. All pumps are hydrostatically tested for optimal performance.
  • Case wearing rings prevent wear on pump casing and are easy and cost-effective to replace.  

Specifications

Capacities: 1800 GPM (409 M3/HR)
HEADS: 600 Feet (183 Meters)
TEMPERATURES: 275°F (135°C)
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