Reliable Microbial Retention
MEMBRAcart XL II filter cartridge for microbial stabilization were developed and validated for the beverage industry to provide secure and reliable removal of spoilage microorganisms. The filter medium is a highly efficient polyethersulfone membrane that, in combination with the construction of the MEMBRAcart XL II filter, ensures excellent service life and filtration results.
The MEMBRAcart XL II filter cartridge is an excellent choice as a final filter before the bottling or storage of beverages and liquid food products.
This filter is integrity testable. An in-situ and non-destructive integrity test can provide assurance of the filter performance within minutes. Integrity tests help manufacturers avoid costly issues such as product contamination, product losses, reprocessing and production delays, as well as satisfying auditor requirements.
- The inert filter material can preserve the organoleptic properties of the product
- Reliable reduction of microorganisms
- Broad chemical compatibility
- Repeated sterilization capability for economical operation
- Easy to wet with cold water for integrity testing
TraceabilityIn order to ensure traceability each filter element is marked on the cage with ordering code and batch number. In addition, every filter cartridge bears an individual number. Product name, removal rating, ordering code and batch number are indicated on the packing label.
Typical Titer Reduction1
|Removal Rating||Test Organism||Titer Reduction|
|0.2 μm||Brevundimonas diminuta||>1010|
|0.45 μm||Serratia marcescens||>109|
|0.65 μm||Saccharomyces cerevisiae||>1010|
Materials of Construction
- End Caps: Polypropylene
- Cage: Polypropylene
- Drainage / Support Nonwoven: Polypropylene
- Filter Membrane: Polyethersulfone (Hydrophilic)
- Core: Polypropylene
- Adapter: Polypropylene (Stainless steel ring in adapter 7, 8 and 41)
- O-ring Seals: Silicone elastomer
All construction parts of the MEMBRAcart XL II filter are thermo-plastically welded, that means no adhesives are used.
|Nominal Length||Nominal Filter Area|
|254 mm (10 in.)||0.6 m2 (6.5 ft2)|
|508 mm (20 in.)||1.2 m2 (13 ft2)|
|762 mm (30 in.)||1.8 m2 (19.5 ft2)|
|1016 mm (40 in.)||2.4 m2 (26 ft2)|
Typical Flow Rate / Pressure Drop
Typical flow rate per 254 mm (10in.) element for clean water
Maximum allowable Differential PressureThe maximum allowable differential pressure in a forward flow direction for MEMBRAcart XL II filters is shown in the table below.
|Temperature||Max. allowable Differential Pressure2|
|Up to 40 °C (104 °F)||500 kPa (5 bard) (72.51 psid)|
|40 °C to 80 °C (104 °F to 176 °F)||300 kPa (3 bard) (43.51 psid)|
Sterilization and SanitizationMEMBRAcart XL II filters can be repeatedly steam-sterilized or autoclaved in situ, or they can be sanitized with hot water.
|Medium||Temperature||Max. allowable Differential Pressure||Cumulative Time3|
|Steam||125 °C (257 °F)||30 kPa (0.3 bard) (4.4 psid)||50 hours4|
|Hot water||85 °C (185 °F)||250 kPa (2.5 bard) (36.3 psid)||50 hours|
1The typical titer reduction is determined in laboratory liquid challenge tests on 10 in. filter
2In fully compatible fluids which do not chemically attack, soften or adversely affect the filter in any way.
3Measured under laboratory test conditions. The actual cumulative time depends on the process conditions.
4Note: 35 hours for 0.2 μm MEMBRAcart XL II filter cartridges.
- Cartridges produced in a controlled environment
- Manufactured according to ISO 9001:2008 certified Quality Management System
- Each individual filter element is integrity tested prior to release from manufacturing
Example Part Number: 419 A 020 W 07 3 SP (See bold references in tables below.)
Part Number: 419 A < Removal Rating Code from Table 1 > W < Adaptor Code from Table 2 >
< Length Code from Table 3 > SP
Table 1 - Microbial Removal Rating
Table 2 - Adaptor
|03||SOE - single open end with
|07||SOE - single open end with fin end, 2 locking tabs and external 226 O-rings|
|08||SOE - single open end with fin end and external 222 O-rings|
|41||SOE - single open end with fin end, 3 locking tabs and external 222 O-rings|
Table 3 - Nominal Length
|1||254 mm (10 in.)|
|2||508 mm (20 in.)|
|3||762 mm (30 in.)|
|4||1016 mm (40 in.)|