SJT/SJM CWP Vertical Pumps

The SJT/SJM CWP are “engineered to order” single stage mixed flow vertical pumps, with semi-open impellers available in sizes starting from 750 mm (30″) impeller diameter and nq 90 (Ns 4639). They are mainly designed as cooling water pumps for power applications but can also be used in water or other industries.


Supporting Documents:
Download: SJT/SJM CWP Vertical Pumps


Main benefits

  • Modern fabricated suction bell and bowl casing incorporating swirl break for stable pump performance curve
  • Semi-open cast impeller design for best fitting and optimum efficiency
  • Segmented elbow to optimize pump efficiency
  • Optional full pull-out construction to reduce lifting crane capacity and ease maintenance

Main applications

  • Cooling water pumps in utility and industrial power stations
  • Water supply
  • Irrigation
  • Flood control and drainage
  • Water services in general industry

Main design features

  • Tailor-made bowl diameter
  • Line shaft connected by split ring, key and sleeve couplings
  • Above or below ground discharge flange to fit the site requirements
  • Dual metal rubber bearings in bowl and column assemblies

Key characteristics


Up to 80,000 m3/h / 349,000 US gpm


Up to 38 m / 125 ft


Up to 6 bar / 125 psi


Up to 50°C / 122°F

Discharge sizes Up to 1,800 mm impeller diameter / 72 inches
Maximum speed of rotation Up to 600 rpm

Performance range

Performance range 50 Hz

SJT/SJM CWP performance range 50 Hz Click to zoom

Performance range 60 Hz

SJT/SJM CWP performance range 60 Hz Click to zoom

Related Links

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Learn more about this product on the Sulzer ABS website here:

Call toll-free 1-888-455-5744 or click here (for the contact page) to connect with a TDH associate.