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Powder Dosing
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Powder Dosing

Ejectors for Powder & Solids Dosing

Our Liquid Jet Solids Pumps offer a versatile option for entraining, dosing, mixing and pumping solids into liquids. The Venturi principle offers many advantages over other types of high shear mixing equipment on the market. As such our Ejectors offer a more reliable alternative to traditional Dosing Pumps. Robust and highly reliable with no moving parts to wear, our units are virtually maintenance free. Our Liquid Jet Solids Pumps are ideal for applications in Liquid Dosing, Chemical Dosing, Lime Dosing and Powdered Activated Carbon Dosing.

Available in either stationary, portable or mobile models, the custom designed Liquid Jet Solids Pump (LSP) units can be supplied as individual items or complete skid mounted systems including motive pump, valves etc. The powder used for powder dosing can be loaded manually or automatically using screw feeders at ground level, thereby keeping powder handling at a minimum. In many cases fluid energy from existing pumps can be used which eliminates the need for additional power. Depending upon the process conditions operation can be on a once-through or recirculation basis. If you have a requirement to dose liquids into a liquid stream, please view our Liquid Jet Pumps page.

Advantages of Ejectors for Powder & Solids Dosing

Reduced manual powder handling

No moving parts

Complete mixing of powders and liquids

Materials to suit process

Low level operation

Reduced batch times

No maintenance

Existing pumps can often be used



Typical Solids Dosed

  • Materials for chemical dosing and dilution
  • Powdered activated carbon
  • Granular activated carbon
  • Lime
  • Ion exchange resin
  • Sand filtrate

  • Alginates
  • Starches
  • Salt
  • Sugar / Dextrose
  • Citric acid granules
  • Milk Powder

  • Pulverised fly ash
  • Dye powders
  • Barium carbonate
  • Magnesium oxide
  • Anthracite


Materials of construction can be varied to suit the process environment. Stainless steel, carbon steel, polypropylene, PTFE and other materials are available with connections to suit. For food and pharmaceutical applications units can be designed to comply with stringent hygiene requirements using polished stainless steel and sanitary fittings.