Emflon PFRW Filter Cartridges

Summary

Product identification

Emflon® PFRW Filter Cartridges are sterilizing grade hydrophobic membrane filters designed for reliable retention of bacteria and high levels of phages in compressed gas and vent applications. They feature Pall’s advanced 0.2 micron rated polytetrafluoroethylene (PTFE) double-layer membranes, pleated into single open-end cartridges. These cartridges are built to withstand demanding in situ steaming conditions.

Materials of Construction

• 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

Features and Benefits

• Strongly hydrophobic 100 % PTFE membranes: Prevents wetting out in humid conditions, even after repeated use and steaming cycles, allowing unimpeded gas throughput.
• High area pleated, robust double-layer membranes: Offers high throughputs and low pressure drops, leading to compressor energy cost savings; excellent resistance to mechanical damage.
• Multi-cycle autoclave and in situ steam challenged in forward and reverse direction: Provides enhanced steaming resistance.
• Validated for 0.2 micron bacteria removal in liquid challenge tests, and bacteria and bacteriophage removal in aerosol challenge tests: Delivers sterile effluent even in humid conditions, ensuring optimal product protection, improved fermentation yields, and increased security in aseptic processes; provides superior bacteriophage protection of microbial cultures.
• Sodium chloride aerosol challenged for particle removal to 0.003 micron: Ensures high particle removal efficiency in dry gas.
• Water Intrusion Testable (WIT): Enables in situ user integrity testing.
• 100 % integrity tested prior to dispatch: Cartridges are lot traceable with documented quality.

Operating limits

Operating Characteristics in Compatible Gases¹

• Maximum Differential Pressure:
  • 5.3 bard (77 psid) (forward) at ≤20 °C (68 °F)
  • 4.1 bard (60 psid) (forward) at ≤80 °C (176 °F)
• 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)
  • ¹ Air, nitrogen, or other compatible gases.
  • ² For continuous gas flow above 60 °C (140 °F), Emflon CPFR filters are recommended. Emflon PFRW can be operated at higher temperatures for shorter periods.

Autoclave and Steaming

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

Removal Ratings

• Liquids: 0.2 μm, sterile effluent⁴
• Gases:
  • 0.003 μm particles in dry gas⁵
  • Aerosol removal of bacteria⁶, bacteria spores, bacteriophage⁷

⁴ Liquid challenged with Brevundimonas diminuta at >10⁷ cfu/cm² effective filtration area per modified ASTM 838-05. Provides sterile effluent according to FDA Guidelines (2004). ⁵ By NaCl aerosol CNC particle analysis, particle reduction >10⁷. ⁶ Aerosol challenged with Brevundimonas diminuta in forward and reverse direction, and under long term challenge conditions in forward direction with humidified air (>90 % relative humidity). ⁷ Aerosol challenged at high flow rates and high humidity (90 %) with MS-2 and PP7 phage at ≥10⁷ pfu/cm² effective filtration area. Provides titer reduction of ≥10¹¹.

Mechanical / hydraulic

• Nominal Filter Area: 0.8 m² (8.6 ft²) per 254 mm (10") module.
• Typical Flow Rates³: For typical clean differential pressure per 254 mm (10") cartridge with air at 20 °C (68 °F), refer to the flow rate graphs in the official PDF.
• Ordering Information Example Part Number: AB1PFR7WH4 (referencing the tables below for bold codes)
  • Table 1: Nominal Length
    • Code 05: 127 mm (5")
    • Code 1: 254 mm (10")
    • Code 2: 508 mm (20")
    • Code 3: 762 mm (30")
  • Table 2: Adaptor
    • Code 2*: SOE – single open end with flat closed end, 2 locking tabs and external 226 O-rings (*AB05 configurations only)
    • Code 7: SOE – single open end with fin end, 2 locking tabs and external 226 O-rings (Recommended for applications requiring autoclaving and sterilization to ensure filter sealing after cooling.)
    • Code 8: SOE – single open end with fin end and external 222 O-rings

Quality and Compliance

• Cartridges are produced in a controlled environment.
• Manufactured according to an ISO 9001:2008 certified Quality Management System.
• For Food Contact Compliance, refer to the Pall website (pall.com/foodandbev) for a Declaration of Compliance to specific National Legislation and/or Regional Regulatory requirements for food contact use. Please contact Pall Corporation to verify product conformity.

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Disclaimer: This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror