AH axial flow pump

Loop reactor circulation pump for very high pressure applications

The Sulzer Ensival Moret model AH high pressure loop reactor circulation pumps are specifically designed for the circulation of polyethylene and polypropylene slurry. Operation of the reactor loop for extended periods helps boost productivity. It is not uncommon to find model AH pumps running more than 5 years between overhauls.

AH axial flow pump
Main benefits
  • Heavy-duty engineered pumps tailored to process requirements
  • Designed and built following API 610 (ISO 13709) and associated international standards
  • High efficiency performance for best total life time cost
  • Specifically designed for circulation of slurry with large free passage between two adjacent blades
  • Robust design for long Mean Time Between Maintenance (MTBM)
  • Direct mounted or with sprung baseplate to accommodate thermal expansion of loop reactor vessel 
     
Main applications
  • Polyolefins industry
    • Slurry phase polypropylene (PP)
    • Slurry phase polyethylene (PE)

 

Main design features
  • Large shaft which to minimize deflection for maximum seal life
  • Double or Triple Mechanical Seal Arrangement to suit pump configuration 
  • All mechanical seals are designed to handle the maximum system pressure in the event of primary seal failure
  • API Seal Support Systems ensure correct seal face lubrication and cooling
  • Robust tilting pad thrust bearing with integrated heat exchanger on sizes above 12” to ensure maximum reliability
Key characteristics
Capacities Up to 18,000 m3/h / 79,260 US gpm
Heads Up to 45 m / 148 ft
Pressures Up to 100 bar / 1,500 psi
Temperatures Up to 200°C / 392°F
Discharge size 150 to 710 mm / 6 to 28 inches
Maximum speed of rotation To suit application
Performance range
Performance Range 50Hz
Performance range 50 Hz
Performance Range 60Hz
Performance Range 60 Hz
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