Absolute Filter Cartridges

Efficiency > 99.98 % (β-ratio 5000)

The demand for industrial filtration continues to increase, driven by geater requirements for product purity. LOFTOP absolute filter cartridges are EATON´s response to these requirements. LOFTOP absolute filter cartridges have been developed for such demanding applications.

LOFTOP absolute filter cartidges are made of 100% high purity polypropylene micro fibers. Micro fibers are blown onto the center core. The meltblown process eliminates the requirement to use binders or additives.

LOFTOP absolute filter cartridges do not release any fibers.

Typical Applications and Types of Usage

Pharmaceutical

Protection of membrane cartridges

Filtration of extracts

Electronic

Pure water, DI-water (pre-filtration)

R.O.water (pre-filtration), photo resins, acids, bases

Film and Photo

Photo resist resins, film lacquers, developer, emulsion, magnet dispersion

Food and Beverages

Mineral water, beer, wine, fruit juice, milk, edible oils

Cosmetics

Mouth wash, perfume, lotion, shampoo

Automotive

E-coats

Surface finishing

Coolants, plating liquids

Others

Chemicals, paper coatings, printing inks, solvents, resins, lacquers, condensate recycling

LOFTOP Absolute Filter Cartridges

• 100% pure Polypropylene
• No added adhesives
• Excellent chemical compatibility
• Biologically and chemically inert
• Controlled pore size
• Steam sterilization, autoclave
• Efficiency rating β-ratio 5000
• Open pore structure
• High structural stability
• High dirt load capacity
• No fiber release

Technical Data

• Filter Fineness: 0.5 - 120 µm
• Length: 5" - 40"
• Connections: DOE and O-ring adapter
• Fiber Material: Pure Polypropylene micro fibers manufactured according to FDA requirements (¤ 177.152), thermally bonded on a Polypropylene core.
• All material conforms to USP XXIII Class VI plastics requirements.
• Temperature Resistance: 80°C permanent, (121°C steam sterilization)
• Max. Differential Pressure: 4.0 bar/25°C

Wide range of available types

LOFTOP absolute filter cartridges are available in a wide range of types for use in many different applications:

Length:

0.5" (127 mm)
10" (254 mm)
20" (508 mm)
30" (762 mm)
40" (1016 mm)

Diameter:

Outer Diameter: 64 mm
Inner Diameter: 27 mm

Sealing Materials:

Version G: Polypropylene
Version 2, 3+4: Silicone rubber (standard), Viton

Optional Versions:

For operating temperatures up to 100¡C LOFTOP filter cartridges can be equipped with a stainless steel core.

Choice of End Caps/Adapters:

LOFTOP absolute filter cartridges come standard as DOE (double open end) versions with polypropylene flat gaskets (G). In addition they are available with common end caps/adapter with O-rings for HAYWARD cartridge housings and other systems. All end caps/adapters are made of polypropylene (FDA-conform).

• DOE - (standard) Polypropylene flat gaskets
• DOE - without flat gaskets
• SOE 222 - 2 O-rings/spear
• SOE 226 - 2 O-rings/bayonet spear
• SOE 222 - 2 O-rings/flat

β-Value Efficiency Rating

LOFTOP absolute filter cartridges are subject to stringent quality control processes. They are regularly tested for their β-value.

The table below gives the filter efficiencies in micrometers at given β-values.

These results have been obtained according to OSU-F-2, ISO-4402 and ISO-4752 under laboratory conditions.

Pressure Drop (ΔP)

The table below details the pressure drop-flow rate characteristic of LOFTOP cartridges flowing water at 20°C. Flow rate is stated as flow per 10" length. For fluids of other viscosities, multiply the indicated ΔP by the fluid viscosity in centipoise. The flow rate for multiple length cartridges is proportional, but should not exceed 4500 l/h.

Dirt Holding Capacity

LOFTOP absolute filter cartridges utilize a graded fibre structure capable of achieving high dirt loading characteristics.

All tests were performed in water at 20°C with a flow rate of 7.5 l/min/10" length using coarse test dust at an inlet concentration of 1.2 g/l to a final ΔP of 2.7 bar. In other conditions, dirt capacity can vary significantly from these results.

Recommended Flow Rates

Filtration efficiency and particle holding capacity are dependent on viscosity, filter efficiency and flow rate. For optimum results we recommend not to exceed the following flow rates (l/min/10" length):

Product Code

type - length - filter fineness - efficiency - adapter (LT-10-30-A-G)

Type

LT: LOFTOP

Length (")

5 - 10 - 20 - 30 - 40

Filter Fineness (µm)

0.5 - 1 - 3 - 5 - 10 - 20 - 30 - 50 - 70 - 90 - 120

Filter Efficiency

A: Absolute Efficiency β-ratio 5000

End Caps/Adapters:

(not valid for DOE standard),

G (DOE foamed flat gaskets polypropylene),

2 (SOE 222 O-rings, spear),

2 V = with Viton O-rings,

3 (SOE 226 O-rings, bayonet/spear),

3 V = with Viton O-rings,

4 (SOE 222 O-rings/flat),

4 V = with Viton O-rings

Absolute Efficiency β-ratio 5000: A

Packaging

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