Emflon® PFRW Filter Cartridges

Materials of Construction

Component	Description
Filter Medium	Double-layer PTFE
Support / Drainage	Polypropylene
Cage, Core, Fin End and End Cap	Polypropylene
Adaptor	Polypropylene with internal stainless steel reinforcing ring
O-ring Seal	Silicone Elastomer Ethylene Propylene Rubber

Food Contact Compliance

Please refer to the Pall website for a Declaration of Compliance to specific National Legislation and/or Regional Regulatory requirements for food contact use.

Technical Information

The technical information provided is based on controlled laboratory tests done on typical production filters at the conditions described, unless otherwise indicated. Actual operating conditions may affect the filter's performance. Nominal Filter Area: 0.8 m² (8.6 ft²) per 254 mm (10") module

Operating Characteristics in Compatible Gases¹

Maximum Differential Pressure	Operating Temperature
5.3 bard (77 psid) (forward)	≤20 °C (68 °F)
4.1 bard (60 psid) (forward)	≤80 °C (176 °F)

¹ Air, nitrogen, or other compatible gases.

Typical Service Life² under continuous operating conditions

Continuous gas service	12 months to 60 °C (140 °F)
Vent service	6 months to 80 °C (176 °F)

² For continuous gas flow above 60 °C (140 °F), Emflon HTPFRW filters are recommended. Emflon PFRW can be operated at higher temperatures for shorter periods.

Typical Flow Rates³

³ Typical clean Δp per 254 mm (10") cartridge, air at 20 °C (68 °F). For gases other than air and for multi-round cartridge installations, please contact Pall for proper sizing.

Autoclave and Steaming⁴

Cumulative Steaming Time	Operating Temperature
165 hours (1-hour cycles, forward)	142 °C (287 °F)
20 hours (1-hour cycles, reverse)	142 °C (287 °F)
Maximum Steaming Conditions	Steaming Temperature
1.0 bard (15 psid) (forward)	125 °C (257 °F)
0.3 bard (4.3 psid) (forward)	142 °C (287 °F)
0.5 bard (7.3 psid) (reverse)	125 °C (257 °F)
0.2 bard (2.9 psid) (reverse)	142 °C (287 °F)

⁴ For applications requiring autoclaving and sterlization, Pall recommends the use of Code 2 or Code 7 adaptors to ensure filter sealing after cooling. Cartridges should be cooled to system operating temperature prior to use. Data shown for forward steam flow also indicates autoclave resistance.

Quality

• Cartridges produced in a controlled environment
• Manufactured according to ISO 9001:2008 certified Quality Management System

Removal Performance

Emflon PFRW filters have a microbial removal rating of 0.2 micron in liquids and a particulate removal rating of 0.003 micron in dry gases.

• Tested with Brevundimonas diminuta liquid challenge at ≥ 107 cfu/cm2 effective filtration area, according to ASTM Method 838-05. Provides sterile effluent according to FDA Guidelines (2004)
• Tested for particle removal at 0.003 micron in dry gases by NaCl aerosol CNC particle analysis
• Tested in accordance with ISO Standard for Compressed Air (ISO 8573-4 and test method ISO 12500-3:2009)⁵.

Pall has an excellent history of use of the Emflon PTFE membrane used in the Emflon PFRW filters, see 'Validation Guide for Pall Emflon PFR Filter Cartridges', USTR2114 (2) further demonstrating:

• MS-2 and PP7 bacteriophage aerosol challenge
• Brevundimonas diminuta aerosol challenge in forward and reverse direction and under long term challenge conditions in forward direction with humidified air
• Bacillus subtilis var niger spores aerosol challenge

⁵ For further information, please contact Pall.

Pall's Emflon filter family offers a variety of solutions for addressing microbial removal in air and gas applications.

Please contact Pall for further information.


Figure 1: Emflon HTPFRW cartridges provide sterilization of high temperature gases and and can be considered for use in oxygen-enriched air applications.


Figure 2: Emflon PFW cartridges are designed for sterilization of large volume gases in compact installations.


Figure 3: Emflon PFAW cartridges offer exceptionally high flow rates and are used for less critical bioburden reduction in gases.

Filter Cartridges

This information is a guide to the part number structure and possible options. For availability of specific options and housing details, please contact Pall.

Part Number: AB [Table 1] PFR [Table 2] W [Table 3]

Example Part Number: AB1PFR7WH4

See bold reference code in tables.

Table 1: Nominal Length

Code	Length
056	127 mm (5")
1	254 mm (10")
2	508 mm (20")
3	762 mm (30")

⁶ Available only in Codes 2 and 7.

Table 2: Adaptor

Code	Description
27	SOE – single open end with flat closed end, 2 locking tabs and external 226 o-rings
3	SOE – single open end with flat closed end and external 222 o-rings
7	SOE – single open end with fin end, 2 locking tabs and external 226 o-rings
8	SOE – single open end with fin end and external 222 o-rings
28	SOE – single open end with fin end, 3 locking tabs and external 222 o-rings

⁷ AB05 configurations only.

Table 3: O-ring Seal Material

Code	Description
H4	Silicone Elastomer
J	Ethylene Propylene Rubber