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Luwa Air Filters ­ For Quality, Reliability and Technical Excellence

Air Filters

Clean air is vital ­ Polluted air threatens our health and impairs the quality of many industrially manufactured products. Thanks to highly developed filter technology, people in air-conditioned rooms breath purer air than outdoors and in "Clean Rooms" products of ever higher quality are being produced ever more reliably. Luwa Ultrafilters meet the requirements necessary to do this. They protect people, processes and products ­ efficiently, reliably, costeffectively, and environmentally soundly. Luwa Ultrafilters form the nucleus of ventilation systems, in the offices and production areas of the most diverse sectors ­ the chemical, pharmaceutical and foodstuff industries, the computer industry, electronics and research, nuclear power stations and hospitals. Luwa Ultrafilters separate minute airborne foreign bodies. High-quality micro-glass fibre papers (figure 1) are

intervals, specially prepared threads are pasted on. This gives the filter mat high strength as well as good elasticity and means that it can be incorporated into stable wood, plastic, or metal frames as a self-supporting element, and sealed with a sealing compound (figure 3). With Luwa Ultrafilters, you are buying the experience and expertise of a specialist firm which has worked in the field of filtration for over 50 years. However, Figure 4: ASHRAE test bench in Luwa's filter laboratory more environmentally sound production processes in Luwa's state-of-the-art filter laboratory (figure 4). This way we can guarantee you and ourselves the technical edge. At Luwa, quality is regarded as essential. Our ISO 9001 certificate confirms that we have had the most comprehen-

Figure 2: Folded filter mat the demands on filter performance are increasing all the time, not least because of society's greater environmental awareness. Our engineers therefore develop new filter concepts, new product generations, and more efficient,

Figure 1: Filter medium, clean and polluted folded into filter mats (figure 2) using a process which is particularly gentle on the material. Folding the filter medium in this way increases the flow rate by up to 50 times compared with an unfolded material. Pressure loss is reduced, and the number of storage places on which particles can become deposited, increased by the same proportion. To ensure that the material folds at regular

Figure 5: Luwa ULPACATS, computer-controlled filter test system sive and demanding quality assurance standard in place since 1991. The well thought-out quality assurance system covers all our company's areas: from receipt of the goods to dispatch, from development to marketing of the finished products. Final inspection on state-of-the-art test benches (figure 5) enable us to guarantee the desired product properties to our customers.

Clean Air For Your Environment

Figure 3: Digitally controlled sealing robot

A Complete Range of Filters

Luwa's filter range will meet all your requirements, from coarse-dust filters to ULPA filters. Multifarious variations in shape, size, material, and temperature ranges are available. There are approximately 20 filter types in over 1000 different versions. Mounting frames and housings complete the range. They help ensure that Luwa's Ultrafilters can be used to their best advantage. The adjacent table allows you to make an initial selection. For further details, please consult the special product leaflet or contact us, the filter experts. Luwa coarse-dust, fine dust and HEPA filters

Filter type Installation

LFL/LV/LGV

GS

FS

FP

FP-P

FP-AZ

Frame or housing type Properties

Panels/Z-line filter Filter pads and filter panels with cardboard frame, available with flat or Z-shaped integral filter media · simple and light · easy installation · environmentally friendly disposal

F Coarse-dust bag filters with synthetic non woven medium · inherently rigid pockets · low volume and weight

F and FG Fine-dust bag filters with glass non woven medium · 8 pockets, large filter area (7 m2) · low volume and weight

F, NG and FG Rigid fine-dust and HEPA filters with paper medium ­ the superior solution · large filter area (18 m2) · long service life · no dust discharge · robust and inherently stable · minimum pressure loss

NG, F and FG Fine-dust and HEPA panel filters with paper medium · compact design · no dust discharge · large filter area (8.5 m2) · robust and stable · minimum pressure loss

NG, F and FG Gas adsorption filters with fixed bed activated carbon filter medium · minimum pressure loss · no dust discharge · very low weight · fits fine-dust frame systems

Areas of application

Coarse-dust filter for installation in air-conditioning and other systems and as prefilter for downstream fine-dust filters. Pads: any size Panels: 292...596 x 495...622 mm, etc. 10 (pad) up to 96 mm (panel) 0.3 m/s (pad) to 2.6 m/s (Z-line) 70 °C Cardboard, Z-line filter reinforced with alumin. sup. grid.

Fresh air filter in general ventilation facilities and as prefilter for downstream fine-dust filters.

Fresh or recirculation air filter in general ventilation and airconditioning systems. Prefilter for downstream HEPA filters.

Fresh, recirculation or final air filter in general ventilation, in air-conditioning systems and in industry. Prefilter for downstream HEPA filters. 592 x 592/287/402/490/897, 287 x 287/897 mm 300 mm up to 3.7 m/s 75 and 120 °C Polystryrene (NT), halogen-free, and galvanised steel (HT)

Recirculation or final air filter in general ventilation and airconditioning systems. Prefilter for downstream HEPA filters.

Fresh or recirculation air filter for ventilation and air-conditioning systems. For adsorption of various low-concentration odours, vapours and air pollutants. 592 x 592/287 mm

Cross-sectional dimensions Depth(s) Max. flow rate Max. operating temperature Frame materials Separation effect to: EN 779/ASHRAE/EUROVENT ­ arrestance (gravimetric) ­ efficiency (atmospheric) EUROVENT 4/4 and B.S.3928 Pr EN 1822 (draft) Filter class to: ­ EN 779 ­ EUROVENT 4/5 ­ EUROVENT 4/4 ­ Pr EN 1822 (draft) Sales leaflet No.

592 x 592/287/402/490/897, 287 x 287/897 mm 125 and 360 mm up to 3.2 m/s 70 °C Polystyrene, halogen-free

592 x 592/287/402/490/897, 287 x 287/897 mm 635 mm up to 3.2 m/s 60 °C Polystyrene, halogen-free

592 x 592 / 287 mm

88 mm up to 2.2 m/s 120 °C Galvanised steel

300 mm up to 2.5 m/s 50 °C Polystyrene, halogen-free, and aluminium

in 8 stages from 76 to 98%

85 and 92% 55, 65, 85 and 93% 65, 75, 82, 93 and 98% 88, 98 and 99.97% 65, 75, 82, 93 and 98% 88 and 98%

G2, G3, G4 and F5 EU2, EU3, EU4 and EU5

G3 and G4 EU3 and EU4

F5, F6, F7 and F8 EU5, EU6, EU7 and EU8

F5, F6, F7, F8, F9 EU5, EU6, EU7, EU8 and EU9 EU10 and EU12 H10, H11 and H12 42.11.01 and 42.12.01

F5, F6, F7, F8 and F9 EU5, EU6, EU7, EU8 and EU9 EU10 H10 and H11 42.13.01 48.11.01

Various

41.14.01

42.15.01

PB

V

P

PL

CR

N

JK/JG/JP/JM

Special filters

Your system, Your machine, Your product.

KM-PB, KS-PB and R - PB Fine-dust and HEPA filters with paper medium · maximum filter area · longest service life · minimum pressure loss · small flow cross-section, fits any duct, stackable KL-V and KM-V Fine-dust and HEPA filters with pleated paper medium · low depth · large filter area · minimum pressure loss · longest service life · stackable as desired P duct Fine-dust and HEPA filters panels with pleated paper medium · low installation height · cost-effective solution for combined air filtration and circulation Filtrasept HEPA panel filters with pleated glass fibre paper medium · low installation height · extremely stable aluminium frame · various sizes Filtrasept , CRM, NG and NSC HEPA and ULPA panel filters with pleated glass fibre paper medium · various installation heights and frame systems · minimum pressure loss · wooden or aluminium frame with protective grid · Luwa ULPACATS test Final filter in clean rooms, air outlets or systems. For Clean Rooms up to class M 1 in accordance with US. Fed. Std. 209 E. from 305 x 305 in 152.5 mm Stages to 915 x 1830 mm 70, 75, 90, 150 mm up to 0.8 m/s, usually 0.45 m/s 100 and 125 °C Wood (H10 and H13) and anodised aluminium (the rest) NSC, NG and Filtrasept HEPA and ULPA filters in a compact design with pleated glass fibre paper medium · volume flow 4000 m3/h · filter area up to 40 m2 · minimum pressure loss · long service life · stable construction · guaranteed leak-free Final filter for inlet or exhaust air systems in nuclear technology, medical technology and industry. Ideal suitable for duct installation. 610 x 610, 305 x 610 and 762 x 610 mm 292 mm up to 3.0 m/s 125 and 220 °C Galvanised-/stainless steel/ powder-coated steel and wood 100 and 125 °C Plastic (JK/JP), aluminium (JG) and stainless steel (JM) JKG Cylindrical fine-dust and HEPA filters with pleated glass fibre paper medium · compact design · corrosion-proof · plastic flanges (JP) · for pressurised air, also available with pressure-proof housing (JG/JM) Pre or final filter for the most diverse purposes, including installation in systems and apparatuses. Purge and ventilation filters for containers and reservoirs. 100 (JG/JM), 200 (JK) and 155, 150 mm (JP) Fine-dust, HEPA and ULPA filters with a pleated paper medium in a cylindrical or cubic design. "Tailor-made" to the optimum properties for your system, your machine, your product.

Return air or end filter in ventilation and air-conditioning systems. Prefilter for downstream HEPA filters. Suitable for duct installation. 202 x 86 mm

Recirculate or final air filter in ventilation and air-conditioning systems. Prefilter for downstream HEPA filters. Suitable for duct installation. 65 x 600 mm

Final filter in type "P" air duct systems for Clean Rooms up to class M 5.5 in accordance with US. Fed. Std. 209 E.

Final filter in ceiling air outlets or systems. For Clean Rooms up to class M 4.5 in accordance with US. Fed. Std. 209 E. 610 x 204/610/762/915/1220, 762 x 762 mm 30 mm up to 0.4 m/s 125 °C Anodised aluminium

Application and use in accordance with your requirements. Talk to our experienced engineers about your applications. to your requirements

202 x 600 mm

600 mm up to 3.7 m/s 100, 125 and 220 °C Galvanised-/stainless steel and aluminium

202 mm up to 1,7 m/s 100, 125 and 220 °C Galvanised-/stainless steel and aluminium

23 mm up to 0.4 m/s 100 and 125 °C Galvanised steel

from 50 to 400 mm

to your requirements up to 4.0 m/s 220 °C to your requirements to your requirements

95% 92, 98 and 99,995%

95% 92, 98 and 99,995%

95% 92, 98 and 99,995%

97 and 99,995%

99 and 99,995% 99,995 to 99,999995%

90 and 97% 98 and 99.995% 97, 99.99 and 99.9998%

95% 85 and 99.995% 99.99995%

from 65 to 98% from 85 to 99.9995 % from 85 to 99.999995% to your requirements from F5 to F9 from EU 5 to EU9 from EU10 to EU14 from H10 to U17

F9 EU9 EU10 and EU13 H10, H11 and H13 42.16.01 and 45.11.11

F9 EU9 EU10 and EU13 H10, H11 and H13 42.16.01 and 45.11.11

F9 EU9 EU10 and EU13 H10, H11 and H13 44.12.01 and 44.13.11

EU10 and EU13 H11 and H13 48.11.01

EU10, EU13 and EU14 H11, H13, H14, U15 and U16 44.11.01

F7 and F9 EU7 and EU9 EU 10, EU13 and EU14 H11, H13 and U15 43.11.01 and 43.12.11

F9 EU9 EU13 and EU14 H13 and U16 46.11.11 and 46.12.11

System Overview ­ Luwa Filters For Every Eventuality

Filter Layout in Air Conditioning Systems

higher protection without any economic disadvantages, and markedly extend the cleaning intervals. The final filter stage (5) is generally arranged on the pressure side after the van and before the supply air duct. Its task is to guarantee the incoming air cleanliness and to protect the duct system from long-term contamination. Depending on the requirements, class F6 to F9 fine-dust filters are used here. For example, class F8 fine-dust filters allow the dust content of the fresh air to be reduced to less then 1% by mass, and the content of respirable dust to be reduced to approximately 5%.

Luwa Filter Technology ­ The Complete Range For Pure Air

Printed on environmental friendly bleached paper (free of chlorine)

© Copyright McLeod Russel Filter AG

Central air conditioning plant Supply air

1

2

3

4

5

The prefilter stage (1) protects the downstream components in the air-conditioning system, such as the humidifier (3) and the van (4), from pollution and in particular prevents heat exchanger

efficiency losses (2). Class G3 or G4 coarse-dust filters usually used to be used as prefilters. Nowadays, the trend is towards class F5 or F6 finedust filters, which offer a markedly

Filter Layout in Clean Rooms

Many working processes in research, industry, and medicine require an ultrapure environment with regard to dust and micro-organisms; these are called "Clean Rooms". This phrase is used to denote demarcated areas in which the particle concentration is kept under control by appropriate means. HEPA filters are essential here. However, it must be possible to guarantee the air purity obtained with these filters not

Luwa duct casing NG or KM-PB

only in the incoming air but also at the workstations. To achieve this, additional flow measures are required. Two air-circulation principles are used: q Turbulent flow, in which the pure air entering the room is mixed with the ambient air by an induction effect to achieve a dilution of the particles released in the room.

q Low-turbulent flow, in which the pure air moves through the room in parallel flow lines at a steady speed, which leads to displacement of the particles generated in the room.

Duct, as short as possible

Air outlets Luwa Filtrasept

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Recirculation plant

Luwa FP Filter

HEPA filter wall or ceiling

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Conventional air distribution

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Turbulent flow

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Turbulent flow

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HEPA Filters in Ducting. . . For class 5 to 7 (VDI 2083) or M 5.5 to M 7 (US Fed. Std. 209 E) Clean Rooms. HEPA filters, fitted just in front of the air outlet, allow the air in the room to be circulated with conventional diffusers, perforated plates, swirl or slotted outlets. Filter monitoring and changing take place where the technical facilities are located, outside the Clean Room.

. . . at the Air Outlet For class 4 to 6 (VDI 2083) or M 4.5 to M 6.5 (US Fed. Std. 209 E) Clean Rooms. Air filtration takes place precisely where it is needed. The filters, with their housings, also take over the role of actually circulating the air. This arrangement is also suitable for the retro-fitting of filters in air-conditioned buildings (e.g. hospitals). The tight-fitting of the filter and pressure losses, as well as filter changing, can be checked from the room at any time.

. . . in Ceilings and Walls

40.12 .11 / e / Wep / 1.95

For class 0 to 4 (VDI 2083) or M 1 to M 4.5 (US Fed. Std. 209 E) clean rooms. In these rooms, either the whole ceiling or a whole wall is made up of HEPA filters. The low-turbulent flow allows the highest purity requirements to be met. A separate air-circulation system with a fine-dust filter stage is usually required to circulate the large air-volume flows.

McLeod Russel Filter AG Wilstrasse 11 CH-8610 Uster [email protected] www.mcleodrussel.ch Telephone +41 (0)1 943 36 36 Fax +41 (0)1 943 36 37 Group companies representatives in most European countries.

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Work station with low turbulent flow

Low turbulent flow

Information

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