Standard absolute filter cartridges


  • Max. temperature: 80°C permanent (121°C steam sterilization)
  • Fineness: 0.5μm to 120μm
  • Length: 5″ – 40″
  • Max. differential pressure: 4.0 bar at 25°C
  • 100% pure polypropylene
  • No added adhesives
  • Excellent chemical compatibility
  • Biologically and chemically inert
  • Controlled pore size
  • Steam sterilization, autoclave
  • Efficiency ratio ß ratio 5000
  • Open pore structure
  • High structural stability
  • High dirt load capacity
  • No fiber release

Filter fineness: 0.5 – 120 μm
Length: 05″ (127 mm) – 10″ (254 mm) – 20″ (508 mm) – 30″ (1762 mm) – 40″ (1016 mm)
Diameter inside: 27 mm
Outside diameter: 64 mm
Connections: DOE and O-ring adapter
Fiber material: Pure polypropylene microfibers manufactured according to FDA requirements (§ 177.152), thermally bonded to a polypropylene core.
Temperature resistance: 80°C permanent, (121°C steam sterilization)
Maximum differential pressure: 4.0 bar / 25°C

ABSOLUTE FILTER CARTRIDGES

Demand for industrial filtration continues to grow, driven by higher product purity requirements. Absolute filter cartridges are an answer to these requirements and have been developed specifically for these demanding applications.
The absolute filter cartridges are made of 100% pure polypropylene microfibers. The microfibers are blown onto the core. The meltblown process eliminates the use of binders or additives.
Absolute filter cartridges do not release fibers. DOE and SOE filter cartridges, equipped with an FPM O-ring adapter, are silicone-free.

TYPICAL APPLICATIONS / TYPES OF USE

  • Pharmaceutical – Protection of membrane cartridges. Filtration of extracts
  • Electronics – Pure water, DI water (pre-filtration), R.O. water (pre-filtration), photoresins, acids, bases, semiconductors
  • Film and photo – photo-resistant resins, film varnishes, developer, emulsion, magnetic dispersion
  • Food and beverages – Mineral water, beer, wine, fruit juice, milk, edible oils
  • Cosmetics – mouthwash, perfume, lotion, shampoo
  • Automotive industry – E-coats
  • Surface finishing – coolants, coating fluids
  • Other – Chemicals, paper coatings, printing inks, solvents, resins, varnishes, condensate recycling

EFFICIENCY > 99.98% ß-RATIO 5000

ß-WAY EFFICIENCY

Absolute filter cartridges are subjected to rigorous quality control processes. They are regularly tested for their ß value.
The attached table gives the filtering efficiency in μm at given ß values.

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

ß-5000ß-1000ß-100
LT-10-0,5-A0.5<0,5<0,5
LT-10-1-A10.5<0,5
LT-10-3-A321
LT-10-5-A543
LT-10-10-A1098
LT-10-20-A201815
LT-10-30-A302622
LT-10-50-A504031
LT-10-70-A706055
LT-10-90-A908077
LT-10-120-A120110100

DIRT HOLDING CAPACITY

Absolute filter cartridges use a graded fiber structure that allows them to handle high dirt loads.
The highest dirt holding capacity is in the outer layers as a result of high pore volumes, avoiding glare from the patterned surface.

All tests were performed in 20°C water at a flow rate of 7.5 l/min/10″ length using coarse test material at an inlet concentration of 1.2 g/l to a ΔP of 2.7 bar. Under other conditions, the dirt capacity may differ significantly from these results.

Dirt holding capacity (g/10")
LT-10-0,5-A66
LT-10-1-A68
LT-10-3-A70
LT-10-5-A70
LT-10-10-A70
LT-10-20-A70
LT-10-30-A70
LT-10-50-A70
LT-10-70-A94
LT-10-90-A360
LT-10-120-A360

PRESSURE LOSS (DELTA P)

The attached graph gives the pressure loss characteristics of the cartridges at 20°C water flow. The flow rate is given as flow per 10″ length. For liquids of different viscosity, multiply the indicated ΔP by the liquid viscosity in centipoise. The flow rate for cartridges of other lengths is proportional, but should not exceed 4500 l/h.

Grafiek drukverlies loftop filterkaarsen
Loftop filterkaarsen - eindkappen

END CAPS / ADAPTERS
Absolute filter cartridges are supplied as standard DOE (double open end) versions. In addition, they are available with common end caps / adapters with O-ring and other systems. All end caps / adapters are made of polypropylene (FDA types).

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

OPTIONAL EXCEPTIONS
For operating temperatures up to 100°C, the filter cartridges can be fitted with a stainless steel core.

DOE (standard) Polypropylene flat gaskets filterkaars

DOE (standard)
Polypropylene flat gaskets
G

DOE without flat gaskets filterkaars

DOE
without flat gaskets

SOE222

SOE 222
2 O-rings / spear
2

SOE226

SOE 226
2 O-rings / bayonet spear
3

SOE222 (4)

SOE 222
2 O-rings / flat
4

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