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Carl Eric Johnson, Inc.

Engineered Process Equipment & Solutions


Chemineer Impellers

If there were only one mixing job to do, only one impeller would be required. However, there is a very wide range of problems in agitation, and the best impeller for one application may not be the best impeller for another.



The Chemineer RL-3 impeller is designed for applications where a ragless agitator is desired to prevent build-up on the rotating impeller./  Typical in Waste Treatment applications, the RL-3 is a rag shedding impeller which prevents build-up of fibrous materials on the impeller, while providing a strong axial flow for efficient blending and solids suspension.

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The highest efficiency turbulent flow impeller is available in the marketplace.  Ideal for blending, heat transfer, and solids suspension applications.  Developed to maximize strength at lower weights as comapred to other axial flow impellers, allowing for longer shafts withouth internal support, smaller shaft diameters, and smaller seal sizes if applicable.



An extremely efficient turbulent flow impeller for blending, heat transfer and solids suspension. Most effective for Reynolds numbers over 50. Developed to minimize the creation of trailing vortices and incorporating the otherwise wasted energy into macro-flow.



The Chemineer® SC-3 Impeller features an advanced design engineered for deep tanks. It produces flow characteristics of much larger impellers, without the added weight, or the resulting loss in pumping efficiency. The highly efficient SC-3 Impeller's reduced weight allows for the use of longer shaft extensions for deeper tanks, and resolves associated critical speed limitations. The use of an SC-3 impeller can produce an overall agitator cost savings as much as 33%.



A reasonably cost effective impeller in both turbulent and laminar flow. Good impeller for applications where the viscosity changes over a wide range causing the flow regime to vary between turbulent and laminar flow. A reasonably cost effective impeller for solids suspension.



A cost effective impeller for operation very near the floor of a tank for agitating the heel in solids suspension applications. Also an effective impeller in laminar flow applications, especially when impeller Reynolds numbers drop below 50.



Highest gas dispersing capability available. Can disperse nearly six times the gas handling capability of the D-6 or Rushton impeller. Unloads less than the CD-6. In fact, the unloading is nearly all due to the change in effective density of the gassed liquid. The mass transfer capability is on the order of 10% better than the CD-6. Unlike many other gas dispersing impellers, the BT-6 is relatively insensitive to viscosity.



A high efficiency turbulent flow impeller used on our smallest turbine agitators at direct drive motor speeds on our DT, BTNS and RBTNS agitator lines. The high solidity permits operation nearer the boiling point without cavitation.


Double Helical Ribbon Impeller

Generally recognized as the best all around high viscosity, laminar flow impeller. It is the most efficient blender of all existing close clearance agitators. The double flight helical ribbon impeller is also good for heat transfer and blending of liquids and solids from the surface. Generally used for applications where viscosities are ordinarily greater than 30,000 MPa.


Anchor Impeller

The anchor impeller is the most economical laminar flow impeller. It is most effective in squatty batches where vertical pumping is not as important as in tall batches. Blend times are somewhat longer than helical ribbon type impellers. It is the easiest high viscosity impeller onto which scrapers can be mounted for very difficult heat transfer applications.



The JT-2 Impeller has been developed for superior blending in transitional flow. Higher viscosity and non-Newtonian fluids make blending much more challenging. This impeller is used after conventional turbines have lost efficiency due to viscous effects and before the need for close clearance impellers.


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