Three-quarter view of a deep ivory blower filter unit with blue centrifugal blower cover

FFU およびターミナル空気浄化装置

送風機フィルターユニット（ BFU ）

A deeper ceiling clean-air unit using a dedicated centrifugal blower to overcome duct, damper and final-filter resistance at elevated airflow.

High-Pressure Centrifugal Blower
Ducted or Recirculating Inlet
Perforated Air Diffuser
Large Airflow Capacity

見積もりリクエスト製品案内

商品紹介

The blower filter unit houses a forward- or backward-curved centrifugal blower above a full-size HEPA or ULPA filter in a deep insulated enclosure. Unlike a shallow grid FFU, the BFU is designed with enough chamber height for a larger scroll or blower wheel and can accept a round duct collar, inlet damper or recirculating top intake. An internal perforated plate distributes the higher-volume discharge over the filter surface. The format is suited to turbulent-flow rooms, high air-change zones and ceiling positions where a long duct path or loaded filter creates more resistance than a compact FFU can handle.

主要な特徴

A dedicated centrifugal blower develops useful static pressure for ducted inlets, dampers and deeper final filters.

The large pressure chamber reduces direct fan imprint before air reaches the HEPA or ULPA surface.

A removable perforated plate smooths the discharge and protects the downstream filter face during service.

Duct-connected and self-recirculating intake arrangements use the same ceiling-mounted enclosure platform.

お客様の製品に関する懸念事項

Compact FFUs can lose airflow when the air path includes long ducts, dampers or a heavily loaded final filter.

Supply volume falls below target when duct and terminal pressure losses are added together.The larger centrifugal blower provides a higher available static-pressure range than a shallow axial module.

A concentrated blower outlet produces a visible high-velocity patch at the centre of the diffuser.The deep plenum and perforated equalising plate distribute pressure before final filtration.

A central air handler cannot independently trim airflow to one room or process zone.Each BFU can use its own speed setting or damper to balance the local ceiling supply.

Filter replacement requires dismantling the complete blower housing from above.A separated lower filter section permits the final filter and diffuser to be removed without lifting the blower assembly.

典型的な用途

High air-change cleanroomsDucted pharmaceutical supply pointsElectronics packaging roomsFood processing clean zonesLarge clean booths and corridors

技術的なパラメータ

Typical BFU enclosure and filter ranges for cleanroom ceiling service are shown below.

コア材料	Centrifugal blower, micro-glass HEPA or ULPA filter and optional closed-cell acoustic liner
パネルの厚さ	500-750 mm overall housing depth
有効幅	650-1300 mm nominal ceiling module width
最大長さ	Up to 1450 mm standard housing length
鋼鉄の厚さを直面する	1.0-1.5 mm powder-coated steel or 304 stainless-steel blower-filter casing
コア密度	Approximately 24-48 kg/m³ density for optional closed-cell acoustic insulation
熱伝導率	Approximately 0.033-0.040 W/(m·K) for the optional closed-cell acoustic liner
表面仕上げ	Ivory-white powder coat or brushed 304 stainless steel with stainless perforated diffuser
ジョイントタイプ	Flanged duct inlet with gasketed blower access panel and compression-seal or gel-seal final filter
カスタマイズ	意図したアプリケーションと動作環境に基づいて利用できます。

利用可能なオプション

Forward- or backward-curved centrifugal blowerRound duct inlet or recirculating top grilleHEPA H14 or ULPA U15 final filterStepped, inverter or EC airflow control

Planning a Blower Filter Unit (BFU) specification?

寸法、設置条件、性能目標、必要な表面仕上げをお送りください。

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送風機フィルターユニット （ BFU ）