Prefiltration

MicroFiber Plus

Glass microfiber cartridge

Prefiltration with graded-density, high-area glass microfiber

Graded-density glass microfiber cartridge, 0.45 to 40 µm, with 0.8 m² per 10″. Membrane prefilter for beverages, water, and pharmaceuticals.

Line
MicroFiber · Glass microfiber
Ratings
0.45 µm to 40 µm
Lengths
10″ · 20″ · 30″ · 40″
Manufacturing
Argentina · ISO 7 cleanroom
MicroFiber Plus, glass microfiber cartridge by Exova

Description

The MicroFiber Plus is a glass microfiber filter cartridge for prefiltration of fluids ahead of final membrane filters. Its depth medium, with a graded-density structure and 0.8 m² of area per 10″, traps particles, colloids, and other contaminants throughout its thickness.

It is designed to extend the service life of 0.2, 0.45, and 0.65 µm final membranes. The structure of the medium allows high flow rates with a low pressure drop.

It is 100 % thermally welded, with no adhesives: the glass microfiber is inert and does not shed fibers, and the core, cage, and other components are polypropylene. It withstands steam sterilization at 121 °C and sanitization with hot water at 80 °C or with chemicals. It is manufactured in a cleanroom environment, with materials that comply with FDA 21 CFR for food and beverage contact.

0.8 m² per 10″

Graded-density depth medium that retains contaminants throughout its structure.

From 0.45 to 40 µm

Eight micron ratings: 0.45, 0.6, 1, 3, 5, 10, 25, and 40 µm.

High flow, low pressure drop

The filter medium structure handles high flows with minimal pressure drop.

Protects 0.2 to 0.65 µm membranes

Prefilter for 0.2, 0.45, and 0.65 µm final membranes.

100 % thermally welded

No adhesives. Inert glass microfiber that does not shed fibers; polypropylene core and cage.

Steam at 121 °C and water at 80 °C

Multiple cycles of 30 to 60 minutes in single-open-end cartridges; it also withstands chemical sanitization.

Technical specifications

Request the PDF catalog

Materials

Filter mediumGlass microfiber
Upstream and downstream supportsPolypropylene
Cage, core, and end capsPolypropylene
O-rings and gasketsSilicone (standard), EPDM, Buna-N, Viton®
Construction100 % thermally welded, no adhesives

Dimensions

Filtration area0.8 m² (8.6 ft²) per 10″ module
Lengths10″, 20″, 30″, and 40″ (254, 508, 762, and 1,016 mm)
Outside diameter2.7″ (68 mm)

Operating conditions

Maximum operating temperature80 °C (176 °F)
Maximum differential pressure (forward)5.5 bar at 25 °C
Maximum differential pressure (reverse)2.1 bar at 25 °C

Sterilization and sanitization

Steam sterilizationMultiple cycles of 30 to 60 minutes at 121 °C, in-line or in an autoclave (1)
Hot water sanitizationMultiple cycles of 30 to 60 minutes at 80 °C (1)
Chemical sanitizationMultiple cycles of 30 to 60 minutes with peracetic acid or sodium hydroxide up to 1 % (10,000 ppm)
Note (1)Suitable only for single-open-end cartridges

Quality and compliance

  • Materials that comply with FDA 21 CFR for food and beverage contact
  • Manufactured in a cleanroom environment

Applications

  • Beverages: prefiltration of wine, beer, bottled water, juices, and liqueurs
  • Fine chemicals: filtration of solvents, reagents, and water
  • Water: prefiltration of reverse osmosis (RO) systems and process water
  • Pharmaceuticals: clarification of solutions and protection of sterile filters
  • Cosmetics: filtration of lotions, creams, and perfumes

Frequently asked questions

What micron ratings does the MicroFiber Plus come in?

Eight: 0.45, 0.6, 1, 3, 5, 10, 25, and 40 µm, in lengths of 10″, 20″, 30″, and 40″.

Does it shed fibers?

No. The glass microfiber is inert and does not shed fibers, and the cartridge is 100 % thermally welded, with no adhesives.

What temperature and pressure can it withstand?

Up to 80 °C operating temperature. The maximum differential pressure is 5.5 bar at 25 °C forward and 2.1 bar at 25 °C reverse.

Can it be steam sterilized?

Yes, with multiple cycles of 30 to 60 minutes at 121 °C, in-line or in an autoclave, in single-open-end cartridges. It also withstands hot water at 80 °C and peracetic acid or sodium hydroxide up to 1 %.

Which membranes is it a prefilter for?

For 0.2, 0.45, and 0.65 µm final membranes, whose service life it extends.

MicroFiber line

Other models in the line

Compare the line
MicroFiber Protec, dual-layer glass microfiber cartridge
Dual-layer glass microfiber cartridge

MicroFiber Protec

Two glass microfiber layers in series for fluids with a high colloidal load

  • 0.45 – 20 µm
  • 10″–40″
MicroFiber Max, dual-layer glass microfiber cartridge
Dual-layer glass microfiber cartridge

MicroFiber Max

High-density prefiltration for critical clarification and membrane protection

  • 0.45 – 1.2 µm
  • 10″–40″

Technical blog

Further reading

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