DFT Classic® Fluoropolymer Series Filter Cartridges

• All PTFE for Compatibility With a Wide Range of Process Fluids
• Available in Retention Ratings of 0.5, 1, 3, 10 or 25 µm
• Fits Most Standard Housings
• May Be Used as a Final Filter in Many Applications, or To Provide Superior Protection for Membrane Final Filters
• PVDF and PFA Housings are Available for Use in All Fluoropolymer Filtration Systems
• M3¹ or DOE End Configurations Available as Standard Products

¹ - Modified M3 end cap configuration features single 222 O-ring; M3 equivalent to Pall Code 3.

Applications

• Acid Etch Systems - Including Piranha Etch Solvent Strip Applications
• Most Aggressive and/or High Temperature Acids or Solvents

Recirculating Applications

Retention ratings, by convention, are for single pass applications. Many applications involve recirculating systems, where the filter media has several opportunities to capture contaminant. For example, in a 4.0 gallon (15.1 liters) system circulating at 2.0 gpm (7.6 lpm), the fluid passes through the filter cartridge five times in ten minutes. Thus, the effective retention of a filter cartridge is much finer. Specifically, a cartridge rated at 0.5 µm (nominal) on a single pass is often an effective 0.2 µm (nominal) filter on a recirculating basis.

Multi-Pass

Performance Specifications

Filter Grades:
0.5, 1, 3, 10, 25 µm

Maximum Operating Temperature:
PTFE is compatible with nearly all chemicals up to 365°F (185°C). Primary exceptions are fluorine, chlorine, and oxygen at temperatures in excess of 212°F (100°C).

Product Specifications

Materials of Construction:

Filter Media:	PTFE (Fluoropolymer)
Center Core:	PTFE
222 O-ring:	Fluoropolymer Encapsulated Viton2 A (standard)

Dimensions (nominal):

Outside Diameter:	2 1/2" (6.35 cm), DOE only 2 13/16" (7.14 cm), M3 only
Lengths:	10" (25.4 cm), 20" (50.8 cm), 30" (76.2 cm), Consult factory for 40" (102 cm)

Additional High Temperature Materials

Pall can also supply DFT Classic filter cartridges in PPS (polyphenylene sulfide) for high temperature and aggressive applications. Additional PTFE products are also available, including the Fluoryte Series filter cartridge, an all-fluoropolymer membrane cartridge. Contact your local distributor for specific information on these products.

² - Registered trademark of DuPont Dow

Liquid Retention Ratings (µm) (by ASTM F-795 Test)

Single Pass	Multi-Pass
0.5 µm	0.2 µm
1.0 µm	0.5 µm
3.0 µm	1.0 µm
10.0 µm	3.0 µm
25.0 µm	10.0 µm

Typical Flow vs. Differential Pressure for Application Sizing

Flow rate is per 10” (25.4 cm) cartridge. For liquids other than water, multiply differential pressure by fluid viscosity (cP).

 

 

T

Y

-

(e.g., T003BB10Y-M3)

Code	Filter Grades
0.5	0.5 µm
001	1.0 µm
003	3.0 µm
005	5.0 µm
010	10 µm
025	25 µm

Code	Diameter (nominal)
A	2 1/2" (DOE only)
BB	2 13/16" (M3 only)

Code	Cartridge Lengths (nominal)
10	10"
20	20"
30	30"
40	Consult Factory for 40"

Code	End Configurations
Blank	DOE industrial ("A" diameter)
M3	SOE flat closed end, external 222 O-ring (retrofits other manufacturers' Code 0)3 ("BB" diameter)

³ For details, contact Pall Corporation.