Oenoclear™ II Filter Cartridges

A Regenerable Solution for Wine Pre-Filtration

The Oenoclear II filter cartridge is the latest development for yeast and colloid removal from wine.

The new Oenoclear II filter media is constructed from a unique liquid crystal polymer specifically noted for its thermal stability, high mechanical strength and good chemical compatibility. When configured into single open ended (SOE) AB style cartridges, the resulting filter allows for repeated regeneration and sanitization in situ for long service life.

The dense polymer matrix provides excellent yeast and colloid reduction making it ideal for wine tanker filling, final polish filtration in the cellar and protection of downstream membrane filters. When combined, the long service life and high removal efficiency enable low operating costs especially when compared to traditional “sterilizing grade” sheet filters.

Features	Benefits
Liquid crystal polymer media	Negligible impact on wine characteristics Wide range of chemical compatibility Hot water sanitizable / steam sterilizable
Efficient yeast and colloid reduction	Improved protection of the final membrane filters Low operating costs
Regenerable in situ	Long service life Capability to switch between red and white wine Simple cleaning
Fixed pore structure	Maintains performance with pulsed flow conditions Consistent and reliable filterability index reduction
Enclosed assembly	Hygienic operation Low hold up volume Negligible product losses

Liquid Removal Rating¹

• Liquid removal rating: 0.8 micron @ 99.98 % Efficiency (β5000)

Materials of Construction

• Filter Medium: Liquid crystal polymer on cellulose substrate
• Support and Drainage: Polyester 
• Cage, Core, Fin End and End Cap: Polypropylene
• Adaptor: Polypropylene with internal stainless steel reinforcing ring
• O-ring Seal: Ethylene propylene rubber or silicone elastomer

Operating Characteristics in Compatible Fluids²

Maximum Differential Pressure	Operating Temperature
5.5 bard (80 psid) (forward)	50 °C (122 °F)
4.1 bard (60 psid) (forward)	80 °C (176 °F)
500 mbard (7 psid) (reverse)	20 °C (68 °F)

Sterilization and Sanitization

Media	Temperature	Cumulative Time3
Steam	121 °C (250 °F)	25 hours
Hot Water	90 °C (194 °F)	50 hours
Peroxyacetic acid based sanitizer (300 ppm total peroxides)	20 °C (68 °F)	50 hours

Typical Flow Rates⁴

 

¹The Oenoclear II Filter Cartridge liquid retention rating is based on modified OSU-F2 test.
²Compatible fluids are defined as those which do not swell, soften or attack any of the filter components.
³Measured under laboratory test conditions. The actual cumulative time depends on the process conditions. Pall recommends the use of Code 7 adaptors to ensure filter sealing after cooling. Cartridges should be cooled to system operating temperature prior to use. Contact Pall for recommended procedures.
⁴Typical initial clean media ΔP 254 mm (10") cartridge for water at 20 °C (68 °F); viscosity 1 centipoise. For 508 mm, 762 mm and 1016 mm configurations divide the differential pressure by 2, 3, and 4 respectively.

Quality

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

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

Example Part Number: AB 1 ST 7 W H4 (See bold references in tables below)

Part Number: AB < Length Code from Table 1 > ST < Adaptor Code from Table 2 >W < O-ring Code from Table 3 >

Table 1 - Nominal Length

Code	Description
1	254 mm (10 in.)
2	508 mm (20 in.)
3	762 mm (30 in.)
4	1016 mm (40 in.)

Table 2 - Adaptor

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

Table 3 - O-ring Seal Material

Code	Description
H4	Silicone
J	Ethylene Propylene