Liquid Jet Liquid Pumps (Eductor)

Liquid jet pumps are jet pumps operating on the ejector principle which suck a liquid by means of a motive liquid jet, mix the motive and suction flows and convey the mixed flow.

Advantages
  • Automatic control
  • Corrosion and erosion resistant
  • Easy to install
  • ide range of materials such as steal, stainless steal, cast iron, bronze, Teflon and graphite
  • Low cost
  • May be installed in any position
  • Self-priming
  • Simple and reliable
Applications
  • Acidifying/causticizing oils
  • Conveyance and mixing of fluids and suspensions in the chemical and pharmaceutical industry
  • Conveyance of dirt water, sewage, slurry or sludge in water, sewage, building and other industry
  • Conveying and mixing acids or lyes in water and effluent treatment plants
  • Draining of cellar rooms
  • Introducing antiknock agents and colouring additives to gasoline
  • Proportioning chemical solutions and diluting acids and alkali to a definite end concentration
  • Pumping out of foundation pits
Materials
  • Cast iron
  • Cast stainless steel
  • Other materials on request
  • Steel or stainless steel
  • Temperature change resistant porcelain
Installation Requirements
    • The connection pipes have to be of at least the same size as the connections of the water jet pump
    • The pumps have to operate against pressure. Therefore, it is recommended to install a non return and a throttle-valve after the water jet pump.
    • The cleaning of the water jet pump is done by closing the throttle-valve after the pump. The driving water flows through the suction pipe and removes impurities.
    • A bend in the discharge pipe can prevent backflow
    • In case of conveying slurry and sludge It is recommended to provide rinsing water because the suction medium has to be flowable.
    • The slurry suction pipe should be installed straight between jet pump and vessel. In case of a blocked suction pipe it is easy to clean after removing the cleaning cap.
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