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Sulzer Submersible Recirculation Pump Type ABS RCP
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Sulzer Submersible Recirculation Pump Type ABS RCP


The Sulzer Submersible Recirculation Pump Type ABS RCP is a high-performance pump designed for the demanding task of recirculating activated sludge in water and wastewater treatment plants. With its compact design, high efficiency, and excellent reliability, the RCP pump ensures optimal performance in this critical application.

The RCP pump features a robust construction, with options for full stainless steel versions and advanced components like Silicon Carbide (SiC/SiC) mechanical seals. The self-cleaning propeller and automatic coupling system further enhance the pump's durability and ease of maintenance. Built-in condition monitoring for temperature and water ingress, along with a 100,000-hour bearing lifetime, ensures long-term, trouble-free operation.


  • Compact design for easy integration into treatment systems
  • High efficiency for reduced energy consumption
  • Excellent reliability for minimal downtime
  • Easy handling and maintenance with an automatic coupling system
  • Optional full stainless steel construction for enhanced durability
  • Self-cleaning propeller to prevent clogging
  • Silicon Carbide (SiC/SiC) mechanical seal for superior wear resistance
  • Condition monitoring for temperature and water ingress
  • 100,000-hour bearing lifetime for extended service life


  • Recirculation of activated sludge in water and wastewater treatment plants
  • Denitrification processes requiring nitrate recirculation
  • Municipal and industrial wastewater treatment facilities


  • Max. flow: 4,500 m³/h (20,000 US gpm)
  • Max. head: 1.8 m (6 ft)
  • Discharge sizes: DN 250-800 (10"-32")



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