Main benefits
  • High efficiency - ejector consumes no energy during normal pumping sequence
  • Reliable due to automated priming
  • Easy to install and use
  • Low energy consumption because pressurized air is only required during priming
  • Low installation, maintenance and operating costs
  • Service-free (no rotating parts), robust and simple design
Main applications
  • Clean and slightly contaminated liquids
  • Seawater
  • Liquids containing particles with max. size 3 mm / 0.2 inch
Fully automated ejector package
Full ejector package

For fully automated priming, the Sulzer ejector package includes:

  1. Sulzer ejector unit
  2. Valves with actuators for motive air and ejector suction pipe*
  3. Level-control switch
  4. Control box with logic
  5. Wires (5 m / 16.4 ft.)
  6. Documentation

Sulzer ejector can also be supplied without automation package. In this case delivery includes only the ejector unit and automation diagrams.

*pump discharge valve is not included 

Key characteristics
SI units US units
Priming capacity up to 8 l/s up to 127 USgpm
Maximum priming height up to 7 m up to 23 ft.
Air inlet feed pressure 4 to 10 bar 58 to 145 psi
Air consumption 860 Nl/min (6 bar) 32.3 SCFM (87 psi)
Temperature of pumped liquid up to 90°C up to 194°F
Case studies
  • AHLSTAR™ with Sulzer Ejector improves sump pumping in a cardboard mill
    A cardboard mill customer suffered from regular pump breakdowns in the fiber line effluent sump. Sulzer replaced the two existing submersible pumps by one non-clogging AHLSTAR NPP42-150 pump equipped with a Sulzer Ejector. Read the whole case study.

  • Reliable and cost-effective sump pumping with Sulzer’s ejector
    One of our key customers in the pulp and paper industry was designing a new wastewater pit for their mill. The wastewater contains particles, impurities and a maximum of 1% fibers. The customer needed to pump the wastewater from a pit 2.3 meters deep and wanted to have an energy-efficient, reliable and easily maintained solution for sump pumping. The alternatives were to use a cantilever pump, a submersible pump, a self-priming process pump or a process pump with an ejector

  • 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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