Series F Suspended Air® Emulsion Generator

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Suspended Air® Flotation (SAF™) outperforms Dissolved Air Flotation (DAF) because each Suspended Air® bubble is a working bubble, with an electrically-charged surfactant film ready to attach and stick to oppositely-charged floc particles. The combination of surface tension advantages and electrostatic attraction results in a SAFTM bubble that has a much greater affinity (100 to 1,000 times greater) for developing a particle when compared to a DAF bubble. This results in extremely high rise rates and a stable float characteristic, and makes it possible to operate a flotation process at 10 times the hydraulic loading rate and 10 times the solids loading rate of DAF.

An existing DAF can be retrofitted to perform as a (SAF™): Suspended Air® Emulsion Generators are replacing SAF pressurization systems, increasing the hydraulic and solids loading capacity of an existing DAF flotation tank by 3 to 4 times without increasing footprint and without modifying the existing tank. Generally, retrofits have the added benefit of significantly reducing connected horsepower thereby substantially reducing greenhouse gas emissions.


Unit is supplied pre-piped and pre-wired, with removable side and top cover panels, a NEMA 4X control panel, and connection points for electrical power, makeup water, frothing agent, and emulsion output.


Sealed Generator Module

Stainless steel, fully seal welded, carrying an extended warranty of five years against defects in materials or workmanship. Patented technology.

Frothing Agent Metering Pump

Pulsed-diaphram type, manual stroke length adjustment. Control signal input for pulse frequency adjustment proportional to emulsion flow rate.

Instrumentation and Controls

Polypropylene flow sensor, flow rate and totalized flow display, and control signal output. Float and solenoid water level control. “Warm-up” time delay on emulsion output solenoid valve.

Recycle Pump

Rotary lobe or gear positive displacement pump coupled to a 3-phase, 460v electric motor with electronic variable speed drive and gear reducer on Models F8 through F200. Single phase 230v motors available as an option on Models F8 and F25. Model F2 has a 110v single phase motor.


Model ClearFloaterTM Wastewater Flow Rating (gpm) a
ClearFloaterTM SAFTM Generator Recommended Minimum Recommended Maximum
CF25 F2 10 30
CF50 F8 20 100
CF125 F8 50 200
F25 125 250
CF250 F25 200 350
F50 250 500
CF500 F50 350 700
F100 500 1,000
CF1000 F100 700 1,400
F200 1,000 2,000
CF2000 F200 1,400 2,800
F400 2,800 6,000
CF3000 F400 4,000 8,000

a. Maximum flow rates are dependent on constituent concentrations. Excessively high concentrations may require testing to size equipment.


(gpm) (gpm) W L H A (dia.) B (dia.) HP
F2 0.5 0.3 16 16 24 3/8 1/4 1/4
F8 2.1 1.3 36 34 64 1/2 3/8 1
F25 6.6 4 40 49 78 1/2 3/4 2
F50 13.2 8 53 61 78 3/4 1 3
F100 26.4 16 64 63 78 1 1.5 5
F200 52.8 32 66 69 78 1.25 2 10

a. Maximum flow rates are dependent on constituent concentrations. Excessively high concentrations may require testing to size equipment.

How Did It All Begin?

The first applications of SAF™ were in the food processing industry because the company was located in California’s agricultural Central Valley and there was a need for treating wastewater from a variety of food processors. Since then installations have expanded to other industries that formerly relied on the traditional DAF approach. The Suspended Air® Flotation Process can be and is applied in any application where physical/chemical separation via flotation is a viable alternative.