Main benefits
  • Tailor-made for your process needs
  • High reliability
  • Maximum efficiency
Main applications

The NRN high-pressure process pump range has been designed to meet the process requirements in versatile general and industrial applications such as:

  • clean and slightly-contaminated liquids
  • corrosive and abrasive liquids
  • slurry applications
Main design features
  • Foot-mounted casing
  • 150#, or 300# flange rating standard (600# optional)
  • Wear rings and balance holes optimized to maximize seal and bearing life
  • Extra heavy-duty shaft for low shaft deflection and long life of seal and bearings
  • Closed impeller or open/semi open designs for slurry applications
  • Inducer option to meet customer NPSH restrictions
  • Heated/cooled stuffing box option
  • Maximum interchangeability of parts throughout the range
Key characteristics

50 Hz

60 Hz

Capacities up to 4’500 m3/h up to 19’800 USgpm
Heads up to 320 m up to 1’050 ft.
Pressures up to 60 bar up to 1’100 psi
Temperatures from -90 to 180°C from -130 to 356°F
Performance range
Performance range of NRN 50hz
NRN 50hz performance range
Performance range of NRN 60hz
NRN 60hz performance range
  • Mining
    Whether on the surface or underground, the conditions in mines are harsh. Besides the mud, slurry, stones, and rocks, there are large volumes of water to remove in order to keep production moving. Our dewatering pumps are rugged and ready, taking on the toughest drainage and sludge removal.

  • Metals
    Sulzer’s pumping and mixing solutions for the metal industry are designed for corrosive and abrasive liquids. We offer expertise e.g. for the production of aluminum, copper, nickel, zinc, and precious metals.

  • Gas-fired power generation
    We offer efficient repair and maintenance services for rotating equipment like gas turbines, compressors, pumps, and generators. Our pumps cover applications from boiler feed to condensate extraction. We produce critical turbine components.

  • Coal-fired power generation
    We offer efficient pumps and related services for boiler feed, condensate extraction, and cooling water applications. We also service the blowers that move pulverized coal into the boiler.

  • Industrial power generation
    Our solutions for industrial power generation cover various pump applications from boiler feed to cooling water, as well as the fast, efficient maintenance and repair of rotating equipment.

  • Renewables
    Sulzer is your partner with a longstanding experience in renewable power generation. We continuously improve our products in your favor and care for best efficiency.

  • Fertilizers
    Our pumps, mixers and agitators provide durability and reliability for fertilizers production as well as for corrosive and abrasive liquids and high gas content. Our specific industry experience also includes separation processes and servicing of pumps, compressors, turbines, and motors.

  • Chemicals
    Sulzer improves quality, capacity, and energy efficiency with its advanced technologies and services for separation processes; including distillation, absorption, evaporation, extraction and crystallization. Our pumps, mixers, and agitators cover the specific requirements in chemical processes.

  • Desalination
    As a global leader in pump design and manufacture, Sulzer is recognized for delivering the excellent product quality and performance reliability for the most critical applications in desalination.
Case studies, articles and news
  • Sulzer to supply pumps and mixers to the new bioproduct mill in Kemi, Finland
    March 24, 2021
    Metsä Fibre, part of the Finnish forest industry company Metsä Group, and Sulzer Pumps Finland have signed an agreement for the supply of process pumps, medium-consistency pumps and mixers for the main processes of the bioproduct mill that will be built in Kemi. The delivery will include several hundred devices.

  • Pumps keep mines dry
    Pumps play a critical role in all mining operations and they are, therefore, among the most important equipment in a mine. In this article we explain why. Read the article.

  • Energy efficiency of pumping systems
    Pumping systems account for more than 20% of the world’s electrical energy demand, and in certain industrial plant operations they can be responsible for between 25% and 90% of the energy usage. Improving the energy efficiency of the pumping system will reduce production costs and support green credentials. Read the whole article.

  • Supporting sustainable fuel production
    Sulzer is at the forefront of engineering excellence and quality, delivering best-in-class solutions to support companies in important growth industries, such as biobased, renewable energy production. Understanding precisely what customers need, as well as maintaining the highest standards in manufacturing and service has led to many significant project wins, not least the collaboration with Inpasa, Latin America’s largest producer of corn ethanol. By the end of 2022, this partnership is anticipated to have grown to the delivery of almost 1’000 pieces of equipment, including pumps, sealing systems, agitators and static mixers across three production plants in Brazil. Read the whole article.

  • Case studies
    Wherever fluids are pumped, mixed, controlled or applied, we are there. See how our solutions create value for customers and learn how we can make your pumping and mixing processes more efficient and profitable, safeguarding your production and ensuring lasting reliability.

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