A wide range of HighEfficiency air filtersdesigned to suit a varietyof applications andexacting performancerequirements are availablefrom Nationwide FilterCompany Ltd. Efficiencies of HEPA andULPA filters range from95% to 99.99999%.

SPECIALIST HEPA & ULPA FILTERS

Through continuous in-house research and development a combination of conventional and specialist filtermaterials (some developed in-house) are employed in the production of high performance filters to deal effectivelywith particulate matter, gaseous, bacterial and viral contaminants.

As the largest UK manufacturer of HEPA filters, Nationwide Filter Company’s design expertise and vast range ofproducts are utilised in a variety of market sectors, including:

In addition to providingconventional HEPA filterproducts, NFC is guidedby the principles ofdeveloping effective,innovative andaffordable solutions to arapidly increasingnumber of air quality andair filtration relatedproblems.

Critical clean rooms Laminar flow benches Mechanical ventilation systems Fume cupboards & safety cabinets Health & safety (respirator) industry Domestic appliance market Research laboratories Medical sector Military sector

HEPA & ULPA FILTERS

Available in efficiencies between 95% and 99.999%(H10 – H14).

Construction High grade filter media (water repellent, fireretardant, anti-fungicide treated micro-fine glass) isdeep pleated with each pleat separated from thenext by either corrugated ‘safety-edge’ aluminium orkraft paper spacers. The assembly is sealed into a galvanised steel orparticle board casing, and a single or double gasketis added as required. Each individual completed filteris then tested to the required standard. Face grillescan be fitted if required, and alternative casematerials, such as stainless steel, can be providedfor special applications.

High Capacity Deep Pleat (HCDP) models(utilising up to 50% greater media area) are availableto meet the demands of higher air volumes, or toprovide extended life in standard installations.

DEEP PLEAT ‘CONVENTIONAL’ HEPA FILTERS

Sizes Face Sizes: From 203 x 203mm to 760 x 1830mm Standard Depth: 298mm, and 156mm. Standard Capacity: velocities up to 1.26m/s High Capacity: velocities up to 2.15m/s.

Applications Pharmaceutical and medical industries Central plant – air supply systems Research laboratories Nuclear establishments

The Multi-Wedge cartridge utilises close pleat technology toprovide a ‘deep case’ filter capable of handling high air volumeswhilst providing filter efficiencies ranging from 95% to 99.999%(H10 to H14).

Construction Individual filter ‘cells’ are produced from continuously pleatedfilter media with each pleat separated from the next by uniformlyspaced thermosetting adhesive beads. Individual cells are thensealed within an outer steel case in vee-formation providing atotal media area in excess of 30m2. A single or double neoprenegasket is fitted as required.

MULTI-WEDGE HEPA CARTRIDGES

Sizes Face Sizes: 610 x 610mm and 305 x 610mm Standard Depth: 292 mm plus gasket(s) Rated Face Velocity: 2.5m/s

Applications Pharmaceutical and Micro-Electronics industries Air handling units & central air supply systems Optical and medical applications

The ability to handle relatively high air volumes makes the Multi-wedge an ideal selection for central plant, air handling units and duct mounted installations.

MINI-PLEAT HEPA FILTERS

Available in efficiencies ranging from 95% to 99.999% (H10 to H14).

Construction NFC Mini-Pleat filters incorporate acontinuously pleated high-grade filtermedium, separated from the next byuniformly formed thermosetting adhesivebeads. The assembly is sealed into a satinfinished anodised aluminium case (asstandard), with an appropriate single ordouble gasket added as required. Doubleface grilles are fitted as standard, to provideprotection for the filter face during transport,installation and under operating conditions.

‘Gel-Seal’ A range of Mini-Pleat filters are available with an extended case extrusion utilising a ‘liquid gel-seal’ (as opposed to a neoprene gasket). Alternatively, filters are supplied with a ‘knife edge’ to suit ‘liquid gel-seal’ frame installations. Special Features The shallow depth, combined with its uniform ‘close-pleat’ design (light weight with high air volume capacity), makes the Mini-Pleat the ideal filter for all laminar flow applications.

All NFC HEPA and ULPA products are individually tested and suitably packed for ‘mainland’ transportation. In the event that any packages show any sign of visible damage, they must be signed for as ‘damaged’, and reported. Filters must be handled carefully and stored in clean dry areas no more than 3 filters high. Deep pleat HEPA filters should bestored with the pleats in the vertical plane. Care must be exercised in unpacking of boxes (particularly in instances where the filter has no face grilles). The box should beopened from the top, turned through 180o and the box removed from the filter.

CAUTION

TERMINAL HOUSINGS

A range of fixed and disposable terminal housings (top inlet) is available from NFC. These may be either standardsizes or custom-built according to client specification.

Sizes Face Sizes: Wide range available Standard Depth: 68mm Rated Face Velocity: 0.45m/s

Applications Laminar flow benches Fume cupboards and safety cabinets Clean rooms Sterile packaging Pharmaceutical production Operating theatres and critical hospital areas Opto and Micro-Electronics industries Bio and Nano technology industries Aerospace industry

PERFORMANCE

NFC 12 BS EN ISO 9001The Company reserves the right to alter design without prior notice

NORTHERN OFFICE Tel: 01524 389713 Fax: 01524 555769 NFC House, Vickers Industrial Estate Mellishaw Lane, Morecambe Lancashire LA3 3EN

STANDARD CAPACITY DEEP PLEAT HEPAS

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0.00 0.25 0.50 0.75 1.00 1.25 1.50 1.75 2.00 2.25 2.50 2.75 3.00 3.25 3.50 3.75

Face Velocity - M/s

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HEPA Filter Type Product Code Face Velocity versus Resistance

Standard Capacity Deep Pleat Wood Case/Kraft Spacers SCDP/WK Wood Case/Aluminium Spacers SCDP/WA Steel Case/Kraft Spacers SCDP/SK Steel Case/Aluminium Spacers SCDP/SA Key to Graph: 1 = H10 2 = H12, H13, H14

High Capacity Deep Pleat Wood Case/Aluminium Spacers HCDP/WASteel Case/Aluminium Spacers HCDP/SAKey to Graph: 1 = H13, H14 Multi-Wedge Steel Case MWF Key to Graph: 2 = H13, H14

Face velocity versus pressure lossis depicted below for selectivefilter grades as ‘standard’.However, all HEPA product typesshown below are available in eachof the five filter grades detailedopposite in Filter Selection Guide.

Filter Selection Guide: BS EN 1822 Grade Efficiency @ 0.3 micron Efficiency @ MPPS

H10 >95% >85%

H11 >98% >95%

H12 >99.99% >99.5%

H13 >99.997% >99.95%

H14 >99.999% >99.995%

HIGH CAPACITY DEEP PLEAT & MULTI-WEDGE HEPA

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0 0.25 0.5 0.75 1 1.25 1.5 1.75 2 2.25 2.5 2.75 3

Face Velocity - M/s

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Mini-Pleat Filters Extruded Aluminium Case MIN Key to Graph: 1 = H10 2 = H11 3 = H12 H13, H14

MINI-PLEAT HEPAS

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0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9

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SOUTHERN OFFICE Tel 01372 728548 Fax 01372 742831Unit 16, First Quarter Business Park

Blenheim Road, Epsom Surrey, KT19 9QN

HEPA PRODUCT CENTRETel 01355 226811 Fax 01355 226811

www.nationwidefilters.cominfo@nationwidefilters.com

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