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Filtres à air et filtration chimique
Filtre ULPA basse résistance
An extended-area U15 mini-pleat filter engineered to reduce pressure loss in high-recirculation cleanrooms while maintaining uniform airflow across the terminal face.
- Extended Media Area
- Optimized U15 Resistance
- Uniform Pleat Channels
- High-Recirculation Duty
Introduction de produit
The low-resistance ULPA filter balances U15-class filtration with the fan-energy demands of continuously recirculated semiconductor cleanrooms. A deeper mini-pleat pack provides increased effective area, and calibrated hot-melt separators keep each narrow air channel open at design flow. The pack is bonded into a rigid anodized-aluminium frame and protected by low-obstruction faceguards. Careful pleat density, pack depth and face velocity selection reduce resistance without thinning the filter structure or compromising clean terminal airflow.
Key Features
Calibrated separator spacing prevents narrow pleat channels from pinching under operating pressure.
Low-obstruction protective grids shield the pack while preserving an open discharge area.
The rigid aluminium perimeter maintains a flat seal plane in large ceiling and FFU modules.
Préoccupations du client produit
Because recirculation fans operate continuously, even a modest unnecessary pressure loss across each ULPA terminal becomes a significant energy penalty.
U15 filters force FFU motors to operate near their upper speed range.Extended media area reduces local velocity and preserves more available fan pressure.
Aggressive pleat spacing creates blocked channels and inconsistent resistance.Controlled hot-melt bead geometry keeps a repeatable clear path between adjacent pleats.
A protective screen blocks too much of the discharge area.A thin open-grid faceguard protects the pack with limited obstruction.
Large ULPA panels bow and lose their perimeter seal.Reinforced aluminium extrusions and bonded corners maintain flatness across the terminal opening.
Les applications typiques
High-recirculation semiconductor cleanroomsEnergy-conscious wafer fabrication baysUltra-clean flat-panel display facilitiesPrecision metrology clean spacesLarge fan filter unit arrays
Paramètres techniques
Typical construction ranges for an extended-area low-resistance ULPA filter are listed below.
| Matériaux de base | Extended-area ultra-fine glass-microfibre or ePTFE ULPA media with optimized mini-pleat separators |
|---|---|
| Panneau épaisseur | 90–150 mm overall aluminium-frame depth |
| Largeur effective | 305 - 610 mm Largeur nominale du visage |
| Longueur maximale | Jusqu'à 1220 mm de longueur nominale du visage |
| Acier face épaisseur | 0.4–0.5 mm low-obstruction coated-steel or stainless faceguard |
| Densité Core | Approximately 28–45 kg/m³ equivalent extended-media-pack density |
| Conductivité thermique | Approximately 0.032–0.043 W/(m·K) for the dry ULPA media pack |
| surface finie | Natural anodized aluminium with clean white or stainless open-grid faceguards |
| Type joint | Continuous EPDM gasket, polyurethane gel trough or knife-edge perimeter |
| Customisation | Disponible en fonction de l'application prévue et de l'environnement d'exploitation. |
Options disponibles
U15 or U16 filtration classGlass-microfibre or ePTFE media90 mm or 150 mm extended-depth frameGasket, gel or knife-edge terminal seal
Planning a Low-Resistance ULPA Filter specification?
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