2900 Series Static Mixers

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2900 Series static mixers are designed for applications where the process flow varies significantly.

Traditional static mixers are designed to produce a head loss at a particular flow rate that translates to mixing energy. With the traditional static mixers, mixing energy reduces as flow decreases meaning the process is compromised.

Almost all modern plants have variable speed pumps allowing process flows to be optimised, but traditional static mixers cannot be designed to cope with this modern application.

The 2900 Series static mixer employs the concept of the popular and proven 2800 Series mixer and effectively builds a mixer into a valve body. This allows the mixer to respond to changes in flow and maintain an optimised head loss over a much wider range of flows.

These mixers are supplied in two components - a fixed mixer suitable for providing the mixing at high flows, and a variable mixer that comes into play as the flow drops. This variable mixer can be modulating, step changing or even manual.

The advantages are:

  • Mixes well with variable process flows. No other static mixer can do this.
Series Brochure Description Diagram
Series 2900 For mixing when the process flow rate varies significantly 2900 Series

Westfall Static Mixers have predictable headloss co-efficients.

Click Here for a chart that indicates the head loss coeffient of each model.


Westfall Manufacturing design an build static mixers to meet your needs:

Size Range: DN15 to DN3000

Materials Include:

  • PVC
  • FRP
  • 316 stainless steel
  • Titanium


  • Municipal and industrial water treatment
  • Chemical Blending
  • Dissolving Gases
  • Contact Chambers
  • Polymer Blending
  • Flocculent blending
  • pH control
  • Potable Water
  • Waste Water
  • Chlorination / De-Chlorination

Additional Resources

Description File Size

Get from your DVD or Intranet

(requires "offline" version of our website)

Get it from the Clouds

(requires internet connection)

Animation showing the 2900 Series variable flow static mixer in operation. 3 MB Series 2900

To request a DVD, click here.

H2O Rx
PO Box 748
Lane Cove NSW 1595


+61 409 784 236


Last Updated: 30 March, 2014