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

FFU 및 터미널 공기 정화 장비

Blower Filter Unit (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

견적 요청 제품 찾아보기

상품 소개

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.

주요 기능

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.

고객 제품 관심사

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.

일반적인 응용 프로그램

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

기술 매개변수

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

핵심 재료	Centrifugal blower, micro-glass HEPA or ULPA filter and optional closed-cell acoustic liner
패널 두께	500-750 mm overall housing depth
유효 폭	650-1300 mm nominal ceiling module width
최대 길이	Up to 1450 mm standard housing length
강철 면면 두께	1.0-1.5 mm powder-coated steel or 304 stainless-steel blower-filter casing
코어 밀도	Approximately 24-48 kg/m³ density for optional closed-cell acoustic insulation
열전도도 (Thermal Conductivity)	Approximately 0.033-0.040 W/(m·K) for the optional closed-cell acoustic liner
표면 마무리	Ivory-white powder coat or brushed 304 stainless steel with stainless perforated diffuser
접합 유형	Flanged duct inlet with gasketed blower access panel and compression-seal or gel-seal final filter
사용자 정의	의도된 응용 프로그램 및 운영 환경에 따라 사용할 수 있습니다.

사용 가능한 옵션

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?

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