Prefiltration

ProFlow

Dual-layer pleated polypropylene cartridge

Dual-layer pleated polypropylene: two filtration stages in one cartridge

Dual-layer pleated polypropylene cartridge, 0.45 to 3 µm, for water, beverage, wine, and chemical prefiltration and reverse osmosis pretreatment.

Line: ProFlow · Pleated polypropylene
Ratings: 0.45 µm to 3 µm
Lengths: 10″ · 20″ · 30″ · 40″
Manufacturing: Argentina · ISO 7 cleanroom

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ProFlow, dual-layer pleated polypropylene cartridge by Exova

Description

The ProFlow is a pleated polypropylene filter cartridge made with progressive-porosity polypropylene microfibers to retain particles in fluids with a high contaminant load.

Its medium is dual-layer: a prefilter layer and a final layer in the same element, that is, two filtration stages in a single cartridge. It starts with a higher clean pressure drop but takes more time and more processed volume to reach the change-out differential pressure.

All of its components are polypropylene, joined by heat sealing and free of additives, surfactants, and post-treatments after the medium is manufactured: broad chemical compatibility and low extractables levels. It is offered in 0.45, 0.65, 1.2, and 3 µm, with a 2.75″ diameter and lengths from 10 to 40″.

Dual layer in a single cartridge

Polypropylene prefilter layer and final layer in the same element: two filtration stages in one.

Longer time to change-out

Starts with a higher clean pressure drop but reaches the change-out pressure after more time and more processed volume.

100 % polypropylene

Polypropylene medium, supports, cage, core, ends, and adapters: broad chemical compatibility and low extractables.

Heat-sealed, no additives

Components joined by heat sealing, with no additives, surfactants, or post-treatments after the medium is manufactured.

Steam sterilizable at 121 °C

30 to 60 min cycles in-line or in an autoclave. Also sanitizable with water at 80 °C and chemicals.

Technical specifications

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Materials

Filter medium, final layer	Polypropylene
Filter medium, prefilter layer	Polypropylene
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, Viton, Buna, EPDM, or Teflon-encapsulated Viton

Dimensions

Nominal filtration area	6,000 cm² per 10″
Nominal length	10″ (254 mm), 20″ (508 mm), 30″ (762 mm), and 40″ (1,016 mm)
Nominal diameter	2.75″ (70 mm)

Operating conditions

Maximum differential pressure	5.5 bar (80 psi) at 25 °C
Maximum differential pressure in reverse flow	0.69 bar (10 psi) at 25 °C
Cartridge change-out	At a maximum differential pressure of 2 bar

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	Multiple cycles of 30 to 60 min with peracetic acid or 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
Non-toxic components according to the migration test of the Argentine Food Code and Mercosur SGT3 standards
Manufactured in an ISO 7 cleanroom

Applications

Water
Reverse osmosis pretreatment
Prefiltration ahead of final filters
Carbonated beverages
Beer
Sugar and fructose syrups
Wine prefiltration
Chemicals
Solvents
Cosmetics

Industries

Food and beverage Wine industry Water treatment SaniFlow filter housings

Frequently asked questions

What does the dual layer provide?

It combines two filtration stages in a single cartridge: a prefilter layer and a final layer, both polypropylene. The cartridge starts with a higher clean pressure drop but takes more time and more processed volume to reach the change-out differential pressure.

What pore sizes are available?

0.45, 0.65, 1.2, and 3 µm, in lengths of 10, 20, 30, and 40″, with a 2.75″ (70 mm) nominal diameter.

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. It can also be sanitized with water at 80 °C and with peracetic acid or sodium hydroxide up to 1 %.

At what differential pressure should it be changed out?

At a maximum differential pressure of 2 bar. The cartridge withstands up to 5.5 bar (80 psi) at 25 °C in the forward direction and 0.69 bar (10 psi) at 25 °C in reverse flow.

Is it suitable for food contact?

Its materials are compliant with FDA 21 CFR 177 for food contact, it complies with European Directive 2002/72/EC, and its components are non-toxic according to the migration test of the Argentine Food Code and Mercosur SGT3 standards.

ProFlow line