Dilution Ejectors
Dilution Ejectors are essentially Liquid Eductors that operate on the basis of the jet Venturi principle.
Dilution Ejectors typically have 3 connections
- 1. High Pressure(HP) Liquid Inlet
- 2. Suction
- 3. Outlet
During operation Dilution Ejectors are able to create a pressure differential across its Suction and outlet. Dilution Ejectors utilize the energy in pumped liquid entering from the HP liquid inlet to create this pressure differential.
This enables Dilution Ejectors to be used for creating low pressure at its suction. The low pressure allows the Dilution 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 Dilution Ejectors to be used as a mixing and pumping device.
By controlling the amount of liquid sucked and the HP liquid flow accurate dilution can be obtained through the dilution ejector. Further the operating flows can be controlled by regulating the HP Liquid, Suction & Outlet Pressures and thus a control on extent of dilution can also be obtained.
Additionally the Dilution Ejector can also be used for pumping the diluted media thus eliminating any need for an additional pump.
Typical Applications
- Acid Dilution (Sulphuric Acid, Hydrochloric acid)
- Alkali Dilution
- Caustic dilution
- Lime mixing
Features of Dilution Ejectors
- Serves dual purpose of dilution and pumping
- Ability to achieve precise dilution ratios and concentration
- Ability to handle powders, granules and lumpy solid matter
- Custom designed models – ensures perfect fit for your application.
- Self Priming mode of operation
- Available in a large variety of materials
- Availability in multiple type of end connections – Flanged, Threaded
| Metallic | Non Metallic |
|---|---|
| Stainless Steels SS 304 / SS 316 | PP (Poly-propylene) |
| Duplex & Super Duplex Stainless Steel | PTFE (Poly-tetra-fluoro-ethylene) |
| Exotic metals (Hastelloy, Inconel, Titanium) |
Benefits of Dilution 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 Dilution Ejectors:
A dilution ejector is a type of eductor pump used to mix and dilute liquids. It operates on the principle of using a high-velocity jet of a motive liquid (such as water or alkalis) to entrain and mix with a concentrated liquid, effectively diluting it.
A dilution ejector works by passing a motive liquid through a nozzle at high velocity. This creates a low-pressure area around the nozzle, drawing in and entraining the concentrated liquid from the surrounding environment. The mixed liquid then passes through diffuser stages where pressure is recovered and the diluted mixture is discharged.
Dilution ejectors find applications in various industries such as wastewater treatment, chemical processing, environmental remediation, and air pollution control. They are used for mixing chemicals, diluting pollutants, and blending liquids where precise mixing ratios are required
Dilution ejectors are simple in design, have no moving parts, and can handle a wide range of liquid viscosities and compositions. They provide efficient mixing and dilution without the need for mechanical mixing equipment or electricity.
One limitation of dilution ejectors is their efficiency, which can be lower compared to mechanical mixers for certain applications. They are also dependent on a high-pressure liquid source (such as pumped water) for operation.
Sizing a dilution ejector involves determining the extent of dilution, required diluted flow rate at discharge. Factors such as inlet pressure, discharge pressure, and specific application requirements influence the sizing process.
Dilution ejectors generally require minimal maintenance due to their simple construction and lack of moving parts. Periodic inspection and cleaning of nozzles, diffusers is recommended to ensure optimal performance.
Dilution ejectors are typically designed to handle liquids within a wide range of density & viscosity. They can handle liquids with solids or particles as long as they do not cause blockages in the nozzle or diffuser.
