Hollow Fiber UF

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DOW’s SFP & SFD Series UF modules are built with robust outside-in PVDF fiber technology. The hollow fibers feature high clean-ability, low chemical consumption, high recovery, and a superior combination of mechanical properties and chemical resistance.

The SFD series of the DOW ultrafiltration modules are especially suitable for drinking water and are certified under NSF/ANSI Standard 61 for safe use in drinking water applications.

Benefits of DOW Ultrafiltration Modules

Excellent removal of colloids, particles, bacteria, and viruses
Protection of downstream equipment and processes such as RO
High flux membrane
High surface area for good packing density and small footprint
Low chemical consumption
High chemical-resistance PVDF that allows aggressive chemical use for treating challenging water when needed
Long term performance from mechanically strong fibers, easy cleaning and wettability providing long membrane life and reliable operation
Temperature tolerant for more effective cleaning
High tolerance to feed solids
Ability to treat challenging water with limited pretreatment
Outside-In flow configuration allowing a wide range of solids in the feed water minimizing the need for pretreatment processes and reducing the backwash volume compared to Inside-Out configurations

DOW NSF/ANSI 61 Drinking Water Ultrafiltration Modules

Model No.	Size	Flow Range		Membrane Area		Module Volume		Weight-EMPTY		Weight-Water FILLED
Model No.	Size	gpm	m²/hr	ft²	m²	gallons	liters	lbs	kg	lbs	kg
SFD-2660	6” × 60”	5.9 – 17.3	1.3 – 4.0	355	33	4.2	16	25	55	41	90
SFD-2860	8” × 60”	9.2 – 26.7	2.0 – 6.1	549	51	9.3	35	106	48	183	83
SFD-2880	8” × 80”	3.1 – 9.3	13.6 – 40.9	829	77	10.3	39	135	61	220	100

DOW Ultrafiltration Modules for Pretreatment

Model No.	Size	Flow Range		Membrane Area		Module Volume		Weight-EMPTY		Weight-Water FILLED
Model No.	Size	gpm	m²/hr	ft²	m²	gallons	liters	lbs	kg	lbs	kg
SFP-2660	6” × 60”	5.9 – 17.3	1.3 – 4.0	355	33	4.2	16	25	55	41	90
SFP-2860	8” × 60”	9.2 – 26.7	2.0 – 6.1	549	51	9.3	35	106	48	183	83
SFP-2880	8” × 80”	3.1 – 9.3	13.6 – 40.9	829	77	10.3	39	135	61	220	100

DOW IntegraFlux Ultrafiltration Modules

Up to 35% higher permeability than previous generation modules helping to improve operating efficiencies and productivity

DOW IntegraFlux™ Ultrafiltration (UF) modules with XP fiber are made from high permeability, high mechanical strength, hollow fiber PVDF membranes. The modules provide excellent performance, industry leading membrane area with low energy and chemical consumption.

Model No.	Size	Membrane Area		Module Volume		Weight-EMPTY		Weight-Water FILLED
Model No.	Size	ft²	m²	gallons	liters	lbs	kg	lbs	kg
SFP-2860XP	8” × 60”	549	51	9.3	35	106	48	183	83
SFP-2880XP	8” × 80”	829	77	10.3	39	135	61	220	100

SFP-2660 & SFD-2660

SFP-2860 & SFD-2860

SFP-2880 & SFD-2880

DOW IntegraFlux UF Modules

DOW Hollow Fiber UF Module Features

The DOW™ Ultrafiltration module utilizes a double-walled hollow fiber (capillary) PVDF membrane which has a very small nominal pore diameter for PVDF material that allows for the removal of all particulate matter, bacteria and most viruses and colloids. Despite the small pore diameter, the membrane has a very high porosity resulting in a flux similar to that of micro-filtration (MF) and can effectively replace MF in most cases.

The DOW™ Ultrafiltration double-walled hollow fiber membrane is formed from high grade polymeric chemicals. The virtually defect-free, double-walled fiber membrane is much more robust and less prone to breakage than single-wall hollow fibers but due to the high pore distribution, does not compromise flux. The uniformity of pore size and outside-in flow ensures the DOW™ Ultrafiltration membrane createsa perfect barrier without sacrificing performance.

0.03 µm nominal pore diameter
PVDF Polymeric Hollow Fibers For High Strength And Chemical Resistance
Hydrophilic PVDF Fibers for Easy Cleaning And Wettability
Excellent chemical resistance
Long membrane life and reliable operation
Outside In Flow Configuration
U-PVC Housing
Certified Under NSF/ANSI Standard 61 For Safe Use In Drinking Water Applications (SFD models only)

Applications for DOW Ultrafiltration Modules

Municipal drinking water systems
Industrial water pretreatment
Protection of reverse osmosis elements
Secondary effluent wastewater and water reuse systems
Ground water and surface water treatment
Seawater desalination pretreatment
Mobile water and containerized systems

Other Hollow Fiber Ultrafiltration Products

AMI Hollow Fiber Ultrafiltration Membrane Elements (HF UF Membranes)