Glass microfiber cartridge
MicroFiber Plus
Prefiltration with graded-density, high-area glass microfiber
- 0.45 – 40 µm
- 10″–40″
Prefiltration
MicroFiber Protec
Dual-layer glass microfiber cartridge
Two glass microfiber layers in series for fluids with a high colloidal load
Cartridge with two glass microfiber layers in series, 0.45 to 20 µm, to clarify fluids with a high colloidal load ahead of the final membrane.
- Line
- MicroFiber · Glass microfiber
- Ratings
- 0.45 µm to 20 µm
- Lengths
- 10″ · 20″ · 30″ · 40″
- Manufacturing
- Argentina · ISO 7 cleanroom
Description
The MicroFiber Protec integrates two distinct glass microfiber layers in a single thermally welded module. It works as a series filtration system, designed for fluids with a high load of colloidal contaminants and deformable particles.
The more open-pored outer layer retains coarse particles and colloids; the finer-pored inner layer performs the final polishing of the fluid before membrane filtration. Retention is progressive throughout the depth of the medium: premature clogging of the final layer is avoided, and more liters are processed before the change-out differential pressure is reached.
In a single housing, it does what previously required two separate filtration stages. It is 100 % thermally welded and adhesive-free, with a polypropylene core, cage, and end caps, and it does not shed fibers. It is manufactured in a cleanroom environment, with materials that comply with FDA 21 CFR for food and beverage contact.
Two glass layers in series
More open-pored outer layer for coarse particles and colloids; finer-pored inner layer for final polishing.
Two stages in one housing
Achieves in a single housing what previously required two separate filtration stages.
0.65 m² per 10″
Filtration area per 10″ module, in lengths from 10″ to 40″ and a 2.7″ (68 mm) outside diameter.
Seven micron ratings
0.45, 0.65, 1.2, 2.5, 5, 10, and 20 µm.
Protects 0.2 and 0.45 µm membranes
Prefilter for final membrane filters in critical applications.
Thermally welded, no adhesives
Polypropylene core, cage, and end caps. Does not shed fibers.
Technical specifications
Request the PDF catalogMaterials
| Prefilter medium (outer layer) | More open-pored glass microfiber |
|---|---|
| Final filter medium (inner layer) | Finer-pored glass microfiber |
| Upstream and downstream supports | Polypropylene |
| Cage, core, and end caps | Polypropylene |
| O-rings and gaskets | Silicone (standard), EPDM, Buna-N, Viton® |
| Construction | 100 % thermally welded, no adhesives |
Dimensions
| Filtration area | 0.65 m² per 10″ module |
|---|---|
| Lengths | 10″, 20″, 30″, and 40″ (254, 508, 762, and 1,016 mm) |
| Outside diameter | 2.7″ (68 mm) |
Operating conditions
| Maximum operating temperature | 80 °C (176 °F) |
|---|---|
| Maximum differential pressure (normal flow) | 5.5 bar at 25 °C |
| Maximum differential pressure (reverse flow) | 2.1 bar at 25 °C |
Sterilization and sanitization
| Steam sterilization | Multiple cycles of 30 to 60 minutes at 121 °C, in-line or in an autoclave (1) |
|---|---|
| Hot water sanitization | Multiple cycles of 30 to 60 minutes at 80 °C (1) |
| Chemical sanitization | Multiple 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
- Pharmaceuticals: clarification of solutions and protection of final membranes (0.2 to 0.45 µm)
- Beverages: wine, beer, bottled water, juices, and spirits
- Fine chemicals: solvents, reagents, and purified water
- Process water: reverse osmosis (RO) prefiltration
- Cosmetics: lotions, creams, and perfumes
Frequently asked questions
How do the two layers of the MicroFiber Protec work?
In series. The more open-pored outer glass microfiber layer retains coarse particles and colloids; the finer-pored inner layer performs the final polishing before the membrane. This avoids premature clogging of the final layer.
What micron ratings are available?
0.45, 0.65, 1.2, 2.5, 5, 10, and 20 µm, in lengths of 10″, 20″, 30″, and 40″, with a 2.7″ (68 mm) outside diameter.
What temperature and differential pressure does it withstand?
Up to 80 °C operating temperature. The maximum differential pressure is 5.5 bar at 25 °C in normal flow and 2.1 bar at 25 °C in reverse flow.
Can it be steam sterilized?
Yes: 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 %.
When is it preferable to the MicroFiber Plus?
When the fluid carries a high load of colloids and deformable particles: the two layers in series do in one cartridge what previously required two stages. The MicroFiber Plus has a single graded-density layer, 0.8 m² per 10″, and micron ratings up to 40 µm.
MicroFiber line
Other models in the line
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
Prefiltration: how to protect the final filter and lower the cost per liter filtered
Prefiltration that protects the final filter: depth, pleated and hybrid media, nominal vs. absolute ratings, and how to stage the steps to filter more liters.
Talk to engineering
Shall we quote the MicroFiber Protec?
Tell us the fluid, the flow rate and the operating conditions. We reply with the model, the ordering code and the technical documentation.