2900 Variable Flow Mixers
Westfall’s Model 2900 Variable Flow Mixer Patent No. 7,281,844
European Patent No. 1886723
The 2900’s variable plate transitioning from fully closed to fully openThe Westfall 2900 Variable Flow Mixer was designed to accommodate situations where flow fluctuates widely. A stationary mixer combines with a pivoting mixer plate to adjust incrementally to changing flow conditions. The upstream mixer is fixed, while the downstream mixer responds to differential pressure controller to open wide for maximum flow velocity to reduce headloss, and closes as flow decreases to enhance mixing.
The First Westfall Model 2900 Variable Static Mixer
Download the Alden Lab’s test results.
Download the Alden Lab’s test results for unrecoverable head loss.
Download the 2900 Variable Flow Mixer Catalog.
Download the 2900 Variable Flow Mixer Installation Guide for use with Control Panel.
Download the 2900 Variable Flow Mixer Installation Guide for use with Remote Signal.
Westfall’s unique, patented wafer mixer shape creates vortex shedding and shear-induced turbulence inside the pipeline for optimal mixing.
Head loss of Westfall's Model 2900 as compared to Model 2800Features:
- Compact Mixer Optimizes Mixing, Minimizes Headloss
- Accommodates Flow Rates up to 20 to 1 Turndown Ratio
- Significantly Reduces Headloss at Maximum Flow
- Dramatically Improves Mixing at Low Rates of Flow
- Alden Lab Tests Verify Excellent Mixing from .5 to 10 FPS
- Control DP across the variable position mixer for desired blend
- Available in Line Sizes 3/8” to 120”
- Short Laying Length Save Space
- Integral Injection Fittings
- Lower Cost, Easy Installation
- Long Service Life/Low Maintenance
Applications
- Water Treatment Projects
- Gas Diffusion
20" Variable Static Mixer
Variable Mixer (on the left of the picture)
- Material:
- 316 stainless steel with Teflon coating
- Size:
- .7 BETA
- Application:
- Injecting ferric chloride
Static Mixer (on the right of the picture)
- Material:
- 316 stainless steel with Teflon coating
- Mounting:
- FRP
- Gaskets:
- (2) 1/8” Teflon
- Corp-Stop:
- (1) 1/4” EB-145 removable with removable PVC solution tube
- Size:
- .9 BETA
- Customer:
- Arizona W.T.P.
Installation of Model 2900 20" Variable Static Mixer
20" Variable Static Mixer
- Fixed Mixer
- Ring:
- FPR
- Mixing Plate:
- 316 Stainless Steel
- Variable Mixer
- Body:
- C.I.
- Mixing Plate:
- Stainless Steel installed in Stainless Steel Spool Section
- Application:
- Water Treatment Plant
- Customer:
- Jacksonville, NC
