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Venturi Injectors

Extremely efficient in the injection of fluids by means of pressure difference. Venturi injectors offer a safe, accurate and economic method to insert practically any type of liquid or gas in a pressurised current.


When a fluid under pressure enters in the injector, it is released through the injection chamber, sharply increasing its speed. The speed increase causes a pressure decrease which allows the intake of other liquid or gas through a special hole and the mixture with the motive current.

When the motive current goes towards the injector outlet, its speed is reduced, causing an increase of pressure (but with a lower value than the one in the injector inlet). The Mazzei injectors require a minimum pressure difference between the one in inlet and the one in outlet to create a flow through the intake hole.


  • Low initial and installation costs
  • In most installations, it does not need external energy
  • Low maintenance costs
  • Suitable for continuous injection, without the need of secondary equipment.

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