Product catalogue 2011/2012 Air and liquid fi ltration

Liquid filtration
cooltexx | Cellulose-polyester media
Key data
Production process
Wet-laid nonwoven process
Material
Cellulose + Polyester
Bonding
Chemical
Max. width
2.3 m
Band filter principle
Gravitation and where appropriate vacuum
Machining process Grinding / honing / lapping [ fine-smoothing ]
Application
Filter media with a cellulose content are used predominantly in aqueous solutions,
where a low pressure drop is a primary consideration, e. g. with pure gravity
systems. The hydrophilic properties of the cellulose ensure good wettability for
water, so that despite the fine fibers used and the good particle arrestance only
a low pressure drop ensues. Since cellulose can be bonded only chemically, not
thermally, the mechanical strengths will usually be lower than with polyester spunbonded
nonwovens, so that their use is restricted to systems with low tensile
stresses.
Product advantages
• Hydrophilic fine-fiber medium with good water wettability
• Long operational lifetime thanks to depth-loading filtration
• Low pressure drop thanks to good wettability
• High separation efficacy, even with fine particles
Article
Weight per unit area
[ g / m² ]
Air-permeability at
100 Pa
[ l / s x m² ]
Pore size:
Largest pore / MFP
[ µm ]
cooltexx 2652 17 3000 > 200 0.19
cooltexx 2653 23 1900 300 / 160 0.19
cooltexx 2654 32 1500 230 / 100 0.28
cooltexx 2662 25 4000 > 200 0.28
cooltexx 2663 50 1800 250 / 130 0.37
cooltexx 2666 60 1600 220 / 130 0.45
cooltexx 2693 70 2000 200 / 100 0.53
cooltexx 2689 130 1000 140 / 75 1.0
Thickness
[ mm ]
Subject to technical changes.
104
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