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.
Prefiltration
MicroMesh
Pleated stainless steel mesh cartridge
Prefiltration and clarification of fluids with 304 stainless steel mesh
Pleated 304 stainless steel mesh filter cartridge, 12 to 500 µm, thermally welded and adhesive-free, for prefiltration and clarification of fluids.
- Line
- MicroMesh · 304 stainless steel mesh
- Ratings
- 12 µm to 500 µm
- Lengths
- 10″ · 20″ · 30″ · 40″
- Manufacturing
- Argentina · ISO 7 cleanroom
Description
The MicroMesh is a filter cartridge with a pleated 304 stainless steel mesh medium made of fine steel fibers. The result is an element resistant to process pressure and temperature, designed for prefiltration and clarification of fluids in industrial processes.
The components that support the mesh are polypropylene. The medium and components are thermally welded together, without glues or adhesives, which makes the cartridge suitable for contact with food, beverages, and pharmaceutical and biological solutions.
It withstands repeated cleaning and high reverse flows, with a low pressure drop and broad chemical compatibility. It is offered in 12, 20, 40, 100, 200, and 500 µm, with a 2.75″ diameter, lengths from 10 to 40″, and SOE and DOE configurations.
304 stainless steel mesh
Filter medium made of fine stainless steel fibers, resistant to corrosion and high pressure.
Withstands repeated cleaning
Tolerates successive cleanings and high reverse flows, and can be sanitized with hot water at 80 °C or with chemicals.
Thermally welded, no adhesives
Mesh and polypropylene components joined without glues: suitable for contact with food, beverages, and pharmaceutical solutions.
From 12 to 500 µm
Six pore sizes: 12, 20, 40, 100, 200, and 500 µm, with a low pressure drop and broad chemical compatibility.
Steam sterilizable
30 to 60 min cycles at 121 °C in-line or in an autoclave, in SOE cartridges with internal reinforcement at the fitting.
SOE and DOE configurations
Double 226 or 222 O-ring with fin or flat end, or double open end; Ø 2.75″ and lengths from 10 to 40″.
Technical specifications
Request the PDF catalogMaterials
| Filter medium | 304 stainless steel mesh |
|---|---|
| Outer and inner support layers | Polypropylene |
| Outer cage and core | Polypropylene |
| Flat ends and fin | Polypropylene |
| Adapter (222 and 226) | Polypropylene with internal reinforcement |
| O-rings and gaskets | Silicone, EPDM, Viton, and Teflon-encapsulated Viton |
| Component bonding | Thermally welded, without glues or adhesives |
Dimensions
| Nominal length | 10″ (254 mm), 20″ (508 mm), 30″ (762 mm), and 40″ (1,016 mm) |
|---|---|
| Nominal diameter | 2.75″ (70 mm) |
Sterilization and sanitization
| In-line steam or autoclave ¹ | Multiple cycles of 30 to 60 min at 121 °C |
|---|---|
| Hot water ¹ | Multiple cycles of 30 to 60 min at 80 °C |
| Chemical sanitization ¹ | Multiple cycles of 30 to 60 min with peracetic acid up to 1 % (10,000 ppm), at room temperature |
| Chemical cleaning ¹ | Multiple cycles of 30 to 60 min with sodium hydroxide up to 1 % (10,000 ppm) |
| ¹ Condition | Recommended only for single-open-end cartridges with internal reinforcement at the 226 / 222 O-ring fitting |
Quality and compliance
- Materials compliant with FDA 21 CFR 177 for food contact
- Complies with European Commission Directive 2002/72/EC on plastic materials in contact with food, with its amendments up to 2008/39/EC
Applications
- Chemical purification
- Bulk active ingredients
- Recovery of catalyst solids
- Removal of decolorizing carbon
- Water treatment
- Treatment of high-temperature liquids
Frequently asked questions
Does it withstand repeated cleaning?
Yes. The catalog states it is suitable for repeated cleaning and high reverse flows. It is sanitized with hot water at 80 °C or with peracetic acid up to 1 % at room temperature, and cleaned with sodium hydroxide up to 1 %, in cycles of 30 to 60 minutes.
What pore sizes are available?
12, 20, 40, 100, 200, and 500 µm, in lengths of 10, 20, 30, and 40″, for prefiltration and clarification of fluids.
Is it suitable for food and pharmaceutical products?
Its materials are compliant with FDA 21 CFR 177 for food contact, and it complies with European Directive 2002/72/EC. Because it is thermally welded, without glues or adhesives, the catalog states it is suitable for contact with food, beverages, and pharmaceutical and biological solutions.
Can it be steam sterilized?
Yes. It withstands multiple cycles of 30 to 60 minutes at 121 °C, in-line or in an autoclave. This is recommended only for single-open-end cartridges with internal reinforcement at the 226 / 222 O-ring fitting.
What applications is it used in?
Chemical purification, bulk active ingredients, recovery of catalyst solids, removal of decolorizing carbon, water treatment, and treatment of high-temperature liquids.
Technical blog
Further reading
Wine filtration step by step: from coarse filtration to the filler
Wine filtration in stages: coarse filtration, clarification, final filter protection, and the membrane before the filler, with housings, integrity, and sanitization.
Talk to engineering
Shall we quote the MicroMesh?
Tell us the fluid, the flow rate and the operating conditions. We reply with the model, the ordering code and the technical documentation.