| Dosing Ejectors

| Dosing Ejectors

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Ejectors

Dosing Ejectors

Dosing Ejectors are essentially Liquid Eductors that operate on the basis of the jet Venturi principle.

Dosing Ejectors typically have 3 connections

  • 1. High Pressure(HP) Liquid Inlet
  • 2. Suction
  • 3. Outlet
Dosing Ejectors

During operation Dosing Ejectors are able to create a pressure differential across its Suction and outlet. Dosing Ejectors utilize the energy in pumped liquid entering from the HP liquid inlet to create this pressure differential.

This enables Dosing Ejectors to be used for creating low pressure at its suction. The low pressure allows the Dosing Ejectors to suck liquids through the suction. The suction liquid mixes with the HP liquid inside the eductor and gets pumped out from the Outlet. The discharge contains the mixture of HP liquid and suction liquid.

This phenomenon allows the Dosing Ejectors to be used to suck and deliver a controlled amount of media (liquids ,powders)

By controlling the amount of media sucked and the HP liquid flow, accurate dosing can be obtained through the Dosing ejector. Further the operating flows can be controlled by regulating the HP Liquid, Suction & Outlet Pressures and thus a control on extent of Dosing can also be obtained.

Additionally the Dosing Ejector can also be used for pumping the diluted media thus eliminating any need for an additional pump.

Dosing Ejectors

Typical Applications

  • Acid Dosing (Sulphuric Acid, Hydrochloric acid)
  • Alkali Dosing
  • Caustic Dosing
  • Lime Dosing
  • Powder Dosing (Activated Carbon, Lime Powder, Calcium Carbonate)

Features of Dosing Ejectors

  • 4 Serves dual purpose of Dosing and pumping
  • 4 Ability to regulate the precise amount of dosage for the application
  • 4 Ability to handle powders, granules and lumpy solid matter
  • 3 Custom designed models – ensures perfect fit for your application.
  • 2 Self Priming mode of operation
  • Availability in multiple type of end connections – Flanged, Threaded
  • Available in a large variety of materials
Metallic Non Metallic
Stainless Steels SS 304 / SS 316 PVC (Poly-vinyl-chloride)
Duplex & Super Duplex Stainless Steel PP (Poly-propylene)
Exotic metals (Hastelloy, Inconel, Titanium) PTFE (Poly-tetra-fluoro-ethylene)

Benefits of Dosing Ejectors

  • Static Device without any moving parts – ensure long reliability and maintenance free operation.
  • Tolerate entry of solids particles into the ejector – avoids abrupt breakdowns.
  • Small & compact size – allows installation in tight spaces & difficult to access areas.
  • Silent Operation
  • Non sparking operation – can be safely used in hazardous & flammable areas
  • Manufactured in multiple materials – allows using the most cost-effective & chemically compliant materials for the application.

Frequently asked questions (FAQs) about Dosing Ejectors:

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