Main benefits
  • The SNS process pump range not only meets the ErP 0.4 (Energy-related Products) criteria, but breaks all records by exceeding MEI 0.7 level (Minimum Efficiency Index) 
  • The highest efficiency on the process pump market providing clear savings in energy consumption
  • Highest hydraulic power on the process pump range. The SNS pump provides increased flow and a higher head than a conventional pump
  • Low energy consumption due to high efficiency
  • Low spare part costs due to high standardization
  • Low installation and maintenance costs due to easy installation and unique design
Main applications

SNS end-suction process pumps are used in a wide variety of general and industrial applications to pump

  • clean and slightly contaminated liquids
  • viscous liquids
  • fibrous slurries
Main design features
  • Innovative, high efficiency, low NPSHr (Net Positive Suction Head required) impeller
  • Optimized shaft sealing chamber and innovative patent pending balancing holes guarantee ideal conditions for the shaft seal maximizing its life time
  • Innovative and reliable patent pending integrated Sulzer mechanical seals for trouble-free shaft sealing
  • Heavy-duty, rigid and compact bearing units with long bearing life and leakage-free construction

All pumps in the SNS end-suction process pump range have been standardized, using common modules and components. Fewer parts means greater process reliability and lower spare parts inventory costs.

Key characteristics
Capacities up to 1,400 m3/h / 6,000 USgpm
Heads up to 160 m / 525 ft.
Pressures up to 16 bar / 230 psi
Temperatures up to 120 °C / 250 °F
Discharge sizes from 25 mm / 1 in to 125 mm / 5 in
Maximum speed of rotation up to 3,600 rpm
Performance range SNS centrifugal pumps have large and tight hydraulic coverage to satisfy the process requirements of versatile general and industrial applications.
Performance range
SNS end suction single stage pump performance range
SNS centrifugal pump capacity range


Case Studies and articles
  • Reliable SNS process pump for dewatering applications
    The customer was running slurry pumps in a simple mine dewatering application, but wanted increased capacity and efficiency to reduce costs in the mine. The installation of Sulzer's high-efficiency SNS process pump gave remarkable annual energy savings.

  • AHLSTAR and SNS pumps throughout corn ethanol process
    FS Bioenergia, located near Lucas do Rio Verde, Mato Grosso, is the first corn-only ethanol plant in Brazil. The production started in 2017 and the annual capacity is 250 million liters today. The facility utilizes the latest process technologies from ICM, an innovative company headquartered in Colwich, KS, USA that has become a world leader in biorefining technologies and processes. In addition to bioethanol, some high-value coproducts such as corn oil as well as high-protein and high-fiber dried distiller’s grains are produced. The plant also generates electricity from the biomass, partly for internal use and the surplus for sale.

  • 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, Mikael Hjelm, globally responsible for business development in mine water management at Sulzer, explains why. Read the 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.
  • Industrial water and effluent treatment
    Sulzer has a deep knowledge in wastewater treatment, and with our wide product portfolio we can now offer energy-efficient and reliable solutions for your water collection, neutralization, flocculation, sedimentation, cooling, aeration, sludge storage, digestion, and dewatering processes.

  • 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.

  • Municipal clean water supply and distribution
    Getting drinking water to all parts of a distribution network involves many challenges along the way. From the water treatment plant through pumping stations and beyond, Sulzer pumps lift and move the drinking water to bring it to its destination at sufficient flow and pressure.

  • Municipal clean water treatment
    When planning new water treatment plants or upgrading existing ones, operating costs are as important as investment costs. Sulzer’s innovative pumps, mixers and compressors combine reliable treatment performance with superior energy efficiency.
Related links

Products and services

  • Agitators, dynamic mixers
    Sulzer SALOMIX® and Scaba mixing and agitation technology offers a wide range of products for industrial applications. Side-mounted horizontal and top-mounted vertical agitators, dynamic chemical mixers, and tower and tank flow management products guarantee effective mixing and agitating processes.

  • Pump services
    Reliable and efficient pump operation is critical for your business. Therefore you need a service partner that can respond fast and flexibly. Our pump services are second to none and provide solutions that help you to improve your processes and business performance.

  • Original pump spare parts
    Original spare parts machined to the correct tolerances and clearances give a perfect fit first time, every time. Our commitment to continuous improvement often allows us to supply parts with improved features, thus enhancing performance, extending equipment life, while reducing maintenance costs.

  • Service kits
    When your equipment needs to be repaired you shouldn’t have to worry about spending valuable time searching for the right parts – or even worse, finding out that some small but vital parts are missing. With Sulzer service kits you get everything you need in one package.

  • Sulzer mechanical seals
    Sulzer mechanical seals are strong by design and have been proven very reliable in various pumping applications.


  • Chemical processing
    Our solutions for the chemical processing industry include pumping, separation and mixing, as well as services for rotating equipment and infrastructure. We offer experience in classical chemical, plastic, and pharmaceutical production as well as in processing renewable materials.

  • 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.

  • Food and beverage
    Food and beverage production relies on our pumping and mixing solutions. Special pumps and agitators have been developed for sugar, starch, and sweetener production. Separation equipment is often used in beverage manufacturing and our process technologies support purification and concentration.

  • Mining and metals
    Long experience and detailed knowledge of metals and mining applications with different raw materials makes Sulzer a reliable pump supplier for these industries.

  • Biofuels
    Biofuels from renewable sources show great potential as sustainable transportation fuel. Based on our experience in demanding processes, we work with customers to develop advanced pumping, mixing, and distillation solutions for the production of biofuels, from pilot to commercial-scale installations.

  • Pulp, paper and board
    Sulzer is the world leader in innovative, reliable, and proven pumping, agitation and mixing solutions for the pulp and paper industry. Our deep process and application knowledge is based on long-term close co-operation with the producers, machinery suppliers and engineering companies.

  • Power generation
    You can rely on our high-performance pumps for efficient operations of fossil-fired, nuclear, and renewable power generation. Our maintenance and repair services for turbines, pumps, and generators ensure continuous operations.

  • Mine water management
    Sulzer offers a comprehensive portfolio of pumps and process equipment for abrasive and corrosive environments in mine water management applications.
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The innovative design means higher efficiency that translates to lower energy consumption. Coupled with this, high standardization, easy installation and unique construction also equate to lower maintenance and operating costs.
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