Fluorodyne II Junior Style filter cartridges are hydrophilic membrane filters designed for reliable retention of bacteria in the final filtration of critical fluids in the food and beverage industry.
The Fluorodyne II filter was developed and validated to provide a secure and reliable removal of microorganisms.
The cartridge is constructed from two layers of 0.2 micron polyvinylidene fluoride (PVDF) membrane. The Junior style configuration is designed to handle small liquid flow rates in compact installations to ensure effective microbial removal.
Fluorodyne II Junior Style filter cartridges are suitable for exposure to repeated hot water and in situ steam sanitization cycles for longer service life.
Microbial Removal Rating
Fluorodyne II Junior Style filter cartridges, passing an appropriate integrity test, provide a sterile effluent when challenged with Brevundimonas diminuta at ≥ 1 x 107 CFU per cm2 of effective filtration area.
|Cartridges resistant to numerous sterilization cycles||
|Hydrophilic PVDF media||
|Individually serialized cartridges||
Materials of Construction
|Filter Medium||PVDF (hydrophilic)|
|Support and Drainage||Polypropylene|
|Core, Cage, and End Cap||Polypropylene|
|O-ring Seal||Silicone Elastomer|
Operating Characteristics in Compatible Fluids1
|Maximum Differential Pressure||Operating Temperature|
|5.3 bard (76.9 psid) (forward pressure)||50 °C (122 °F)|
|3.4 bard (49.3 psid) (forward pressure)||90 °C (194 °F)|
|300 mbard (4.4 psid) (reverse pressure)||In normal operation or in-situ steam sterilization|
1 Compatible fluids are defined as those which do not swell, soften or attack any of the filter components.
Sterilization and Sanitization
Fluorodyne II Junior Style filters may be repeatedly steam sterilized.
|Steam||140 °C (284 °F)||15 hours /45 cycles|
|Steam||125 °C (257 °F)||50 hours / 150 cycles|
2 Measured under laboratory test conditions. The actual cumulative time depends on the process conditions.
Pressure Drop vs. Liquid Flow Rate3~ 1.5 liters per minute @ 100 mbar
~ 0.27 US gpm @ 1 psi
3 Typical initial clean media differential pressure (dP) per 106 mm (4.17”) cartridge for water at 20 °C (68 °F); viscosity 1 centipoise.
- Cartridges produced in a controlled environment
- Manufactured according to ISO 9001:2008 certified Quality Management System
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.
Nominal Dimensions and Adaptor Description
The code 4440 cartridge is 106 mm (4.17”) in length with approximately 0.15 m2 (1.6 ft2) of filter area. The adaptor is a plug seal with locking tabs and double external silicon elastomer o-rings.