2800 Static Mixers
Model 2800 Plate Type Static MixerPatent No. 5,839,828
Download the NEW
Westfall Headloss Calculator Spreadsheet.
The Westfall Model 2800 Static Mixer is a full pipe motionless static mixer in which fluids are injected and rapidly mixed by a combination of alternate vortex shedding and intense shear zone turbulence.
Try the Westfall Headloss Calculator downloadable Excel spreadsheet. Enter the pipe interior diameter to calculate headloss for the Westfall models 2800 and 3050 mixers.
Download the Alden Lab’s test results.
Download the Naval Undersea Warfare Center’s hydrodynamics evaluation.
Read about Westfall’s 2800 Improves Water Quality.
Read about Westfall’s 2800 mixer enhancing water treatment in New Zealand.
Download the 2800 Static Mixer Catalog.
Download the 2800-2850 Operations Manual. (English)
Download the Japanese 2800 Static Mixer Catalog.
Descargar el Catálogo 2800 Mezclador Estático.
Descargar el Manual de Mantenimiento Modelo 2800/2850. (Spanish)
Typical Installation ViewFeatures:
- Excellent Mixing
- Low Cost
- Short Laying Length
- Integral Injection Fittings
- Easy Installation
- Long Service Life
- No Maintenance Required
- No Moving Parts
- Available in any Material: PVC, FRP, 316 SS, Titanium, etc.
Applications:
- Water treatment
- Chemical blending
- Dissolving gases
- Polymer blending
- Flocculent blending
- Ph control
- Potable water
- Waste water
- Chlorination
- De-Chlorination
Mixer Orifice Diameters
The 2800 Static Mixer comes in three orifice ratios so you choose the one best suited to your needs.
Alden Laboratory CoV results for
Mixer Plate Beta Openings
| CoV | Beta Ratio | |
|---|---|---|
| .008 | .7 | with excellent mixing at 1-3 FPS |
| .009 | .8 | with excellent mixing at 3-8 FPS |
| .050 | .9 | with excellent mixing at 8-11 FPS |
7 thru 32
The following are examples of mixers we have developed for our customers. We would be happy to configure a Westfall Model 2800 Wafer Type Static Mixer for your application.
Repeat Customer List |
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Anheuser-Busch Air Liquide Bechtel Bird Machine Bridger Scientific Chinet Company City of Punta Gorda |
Cusac Construction F.B. Leopold Co Fluid Metering Co Groeniger & Co. Harn R/O Hungerford & Terry Johns Manville |
Kaylon Assoc Kinetico Mauldin Dorfmeier MPI Mechanical National Gypsum Shintech Inc. Waterlink Technologies |
| Anderson Water Systems Ltd. | ||
72" 2800 Plate Type Mixer Installed at Cypress Creek
Model 2800 is removed from its shipping crate. Its thin form factor allows it to be air shipped anywhere in the world.
The 2800 is aligned to the pipe flange before being bolted in place.
Mixing Demonstration
Here potassium permanganate is injected into water. You can see the excellent mixing provided by the Model 2800.
Control flow without mixer
Results with 2800 installed
72” Westfall Model 2800 Wafer Type Static Mixer
- Mixing Plate:
- 316 Stainless Steel
- Gaskets:
- Neoprene
- Application:
- Water Treatment Project
- Installation:
- Florida
1600 MM Westfall Model 2800 Wafer Type Static Mixers
- Mixing Plate:
- 316 Stainless Steel
- Gaskets:
- (2) 1/8" Blue Guard 3000
- Corp-Stops:3/4" Brass Corp-stops with Hastelloy Solution Tube
- Application:
- Injecting Sodium Hydroxide and Chlorine
- Installation:
- Saudi Arabia
60" Westfall Model 2800 Wafer Type Static Mixer
- Mixing Plate:
- 60" .8 Beta mixer Zeron 100
- Injection Fittings:
- 316 Stainless Steel
- Gaskets:
- Application:
- Liquid Sodium Hypochlorite feed in a Water Treatment Plant
Read more about this installation.
36” Westfall Model 2800 Wafer Type Static Mixer
- Mounting Ring:
- 316 Stainless Steel
- Mixing Plate:
- 316 Stainless Steel
- Corp-Stops:
- 3/4" with Hastelloy quills
- Gaskets:
- 1/8" EPDM
- Injected Chemicals:
- Caustic Soda
- Hydroflustic acid
- Sodium Hypochlorite
- Aqua Ammonia
- Service
- 150 lb.
- Application:
- Water Treatment Project
- Customer:
- Desalter Project
- Emma Corp, CA
24" - 36" Westfall Model 2800 Wafer Type Static Mixer
- Mounting Ring:
- 316 Stainless Steel
- Mixing Plate:
- 316 Stainless Steel
- Injection Fittings:
- 316 Stainless Steel
- Gaskets:
- Application:
- Water Treatment Project
- Customer:
- Desalter Project
- City of Oxnard, CA
24” Westfall Model 2800 Wafer Type Static Mixer
- Mounting Ring:
- Teflon Coated 316 Stainless Steel
- Mixing Plate:
- Teflon Coated 316 Coated 316 Stainless Steel
- Corp-Stops:
- (2) 1", (1) 1.25" (1) 1.50"
- Gaskets:
- 1/8" EPDM
- Injected Chemicals:
- Alum, Mixed Oxidants, Lime and Activated Carbon
- Service:
- 150 lbs.
- Application:
- Raw Water Feed to Potable Water Treatment Plant
20" Westfall Model 2800 Wafer Type Static Mixer
- Mounting Ring:
- Teflon Coated 316 Stainless Steel
- Mixing Plate:
- Teflon Coated 316 Coated 316 Stainless Steel
- Injection Fittings:
- Gaskets:
- 1/8" Teflon
- Corp-Stop:
- 3/4" Corp-Stop w/PVC Quill
- Flow Rate:
- 8000 GPM Water
- Injected Fluid:
- Ferric Chloride
- Service:
- 150 lbs.
- Headloss:
- 3 PSI
- Application:
- Industrial waste treatment
10” Westfall Model 2800 PVC Wafer Type Static Mixer
- Mounting Ring:
- PVC
- Mixing Plate:
- PVC .8 Beta PVC
- Injection Fitting:
- (1) 3/4" PVC Nipple
- Gaskets:
- (2) 1/8" EDPM
- Application:
- Injecting Chlorine Solution
(4) 8" Westfall Model 2800 304 Stainless Steel Wafer Type Static Mixers
- Mounting Ring:
- 316 Stainless Steel
- Mixing Plate:
- 316 Stainless Steel
- Injection Fittings:
- 316 Stainless Steel
- Gaskets:
- Flexitallic®
- Application:
- Injecting Ethylene into Benzene at 400 PSI Pressure and Temperature 255°C
(2) 8” Westfall Model 2800 Titanium Wafer Type Static Mixers
- Mounting Ring:
- Titanium
- Mixing Plate:
- Titanium
- Injection Fitting:
- 1" Titanium
- Gaskets:
- Teflon
- Application:
- Injecting additives into Sodium Hypochlorite at 100°F
- Installation:
- Bleach manufacturing plant
6" 4-Port Westfall Model 2800 Wafer Type Static Mixer
- Mounting Ring:
- 316 Stainless Steel
- Mixing Plate:
- 316 Stainless Steel
- Injection Fittings:
- 316 Stainless Steel
- Gaskets:
- EPDM
- Application:
- Installed in a pump well which had a turbine pump, 6" swing/lever check valve, a few inches of straight pipe and a 90° ell.
| Flow | Chemical Feed | Feed Rate |
|---|---|---|
| 700 gpm | Alum | 11 gph |
| Potassium Permanganate | 0.3 gph | |
| Polymer | 1.6 gph | |
| Soda Ash | 13 gph |
6" Westfall Model 2800 Wafer Type Static Mixer
- Mounting Ring:
- FRP
- Mixing Plate:
- 316 Stainless Steel
- Injection Fittings:
- 316 Stainless Steel
- Application:
- 0.75% Polymer/water solution and 2% aerobically digested sludge
- Customer
- Town of South Hill WWTP
- South Hill, VA
6" Westfall Model 2800 Wafer Type Static Mixer
- Mounting Ring:
- FRP
- Mixing Plate:
- 316 Stainless Steel
- Injection Fittings:
- 316 Stainless Steel
- Gaskets:
- EPDM
- Application:
- Injecting Aluminum Sulfate
- Installation:
- Water Treatment Plant
- Customer:
- Port Chalmers W.T.P.
- Dunedin, New Zealand
6" and 8" Westfall Model 2800 Wafer Type Static Mixer with FRP Mounting Ring
- Mixing Plate:
- 8 Alloy –20
- Corp-Stops:
- (4) 3/4" Brass with PVC Solution Tube
- Gaskets:
- (2) 1/8" EPDM Gaskets
- Application:
- Potable water
3" Westfall Model 2800 CPVC Schedule 80 Mixer
- Mounting Ring:
- CPVC
- Mixing Plate:
- CPVC .7 Beta
- Injection Fittings:
- (2) 1/2" CPVC Nipple
- Application:
- Injecting 1% Sodium Chlorite into wastewater
2.5" Westfall Model 2800 Wafer Type Static Mixer
- Mounting Ring:
- Alloy –20
- Mixing Plate:
- .7 Beta Alloy –20
- Injection Fittings:
- (2) 1/2" Kynar Quills with Built-in Check Valves
- Gaskets:
- (2) 1/8" Teflon Gaskets Bonded to Ring
- Application:
- Injecting Nitric Acid into fish protein solution, manufactured for a customer in Norway
