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 15.1 liter (4 gallon) system circulating at 7.6 lpm (2 gpm), 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 broadly compatible with many chemicals up to 185°C (365°F)²

Product Specifications

Materials of construction

Filter media:	PTFE (fluoropolymer)
Center core:	PTFE
222 O-ring:	FEP encapsulated fluorocarbon elastomer (standard)

Dimensions (nominal)

Outside diameter:	6.35 cm (2.5 in.), DOE only 7.14 cm (2.81 in.), M3 only
Lengths:	25.4 cm (10 in.), 50.8 cm (20 in.), 76.2 cm (30 in.)

Additional High Temperature Materials

Pall can also supply DFT Classic filter cartridges in polyphenylene sulfide (PPS) 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 Pall representative or distributor for specific information on these products.

² Because so many factors (e.g. elevated temperatures) can affect the
chemical resistance of a given product, you should pre-test under your
own operating conditions observing applicable safety practices such as
those given in the Material Safety Data Sheet for each chemical. Pall
Corporation can provide specific compatibility guidance, testing and data
upon request.

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

Single Pass	Multi-Pass
0.5	0.2
1	0.5
3	1
10	3
25	10

Typical Flow vs. Differential Pressure for Application Sizing

Unit conversion: 1 bar = 100 kPa

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

Chemicals, Chemicals, Polymer, Polymer, Polymer, Polymer, Chemicals

Filter Cartridges

Pall Part Number = T [1] [2] [3] Y – [4]

Table 1

Code	Filter grades (μm)
0.5	0.5
001	1
003	3
010	10
025	25

Table 2

Code	Diameter (cm/in.) nominal
A	6.35/2.5
BB	7.14 /2.81

Table 3

Code	Cartridge lengths (cm/in) nominal
10	25.4/10
204	50.8/20
304	76.2/30

Table 4

Code	End configurations
Blank	DOE industrial
M3	SOE flat closed end, external 222 O-ring (retrofits other manufacturers’ Code 0)3 (“BB” diameter) – only

³ For details, contact Pall Corporation.
⁴ If selecting Code ‘A’ (Table 2) and Code ‘20’ or ‘30’ in Table 3, add a ‘W’ in front of the Table 3 code. For example, ‘AW20’ or ‘AW30’ for the correct part number.