Low-noise fan filter unit in a three-quarter cutaway view with black plenum lining and a perforated outlet panel

FFU およびターミナル空気浄化装置

低雑音ファンフィルターユニット

An EC-powered FFU for occupied cleanroom work areas, combining a vibration-isolated fan assembly with acoustic treatment in the upstream plenum.

Acoustically Treated Plenum
Elastomeric Fan Isolation
Radiused Air Inlet
Variable EC Speed Control

見積もりリクエスト製品案内

商品紹介

The low-noise fan filter unit combines a backward-curved EC fan, vibration-isolated motor support and an acoustically treated plenum. A radiused inlet guides air into the wheel, while the final filter forms the clean-air outlet. The housing arrangement is intended for occupied cleanroom work areas where access for service, acoustic performance and filtered airflow all affect equipment selection.

主要な特徴

Elastomeric fan mounts reduce the vibration transferred from the rotating assembly into the plenum and ceiling grid.

A radiused intake bell lowers inlet turbulence and the broadband noise associated with a sharp-edged opening.

The acoustic treatment is located within the upstream plenum rather than on the downstream filter face.

Continuous EC speed control allows the unit to operate at the lowest practical rotational speed for the required airflow.

アプリケーションのソリューション

Noise control in an occupied cleanroom depends on the selected duty and the installed sound-transmission paths, not the fan label alone.

A single headline noise value gives little indication of sound at a seated workstation.Compare acoustic results at the intended airflow and measurement position before selecting the unit.

Fan vibration travels through a rigid casing and turns the suspended ceiling into a sounding board.Elastomeric mounts interrupt the structural transmission path between the fan and the module frame.

A sound-absorbing material must also suit the cleanroom air path and cleaning regime.Include liner facing and sealing in the construction selection, keeping acoustic treatment upstream of the final filter.

A unit selected at maximum speed remains unnecessarily loud after room balancing.Variable EC control lets each module run only fast enough to meet the measured airflow setpoint.

典型的な用途

Pharmaceutical inspection roomsClean laboratories with seated operatorsMedical-device assembly areasHospital pharmacy cleanroomsMetrology and optical inspection spaces

技術的なパラメータ

Common reference configuration choices for a low-noise ceiling FFU.

Ceiling-Format Options	Common nominal formats: 2 x 2 ft and 2 x 4 ft
参照面速度	Typical selection target: 0.45 m/s, with adjustable EC fan speed
Fan Assembly	Backward-curved centrifugal EC fan
Acoustic Treatment	Acoustically treated upstream plenum, with lining outside the final-filter discharge path
Vibration Isolation	Elastomeric isolation between the fan assembly and housing
Air-Inlet Construction	Radiused inlet feeding the centrifugal fan
Supply-Voltage Option	Common option: 230 V AC
Speed-Control Options	Local adjustment or 0-10 V analogue input; network control with a compatible controller
Final-Filter Options	HEPA or ULPA panel with a matched frame and perimeter seal
フィルター保持	Gasket-compression frame with removable outlet access
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

Acoustic-lined or standard plenumLow-sound EC motor selectionRemote speed controller or network interfaceLow-resistance final filter sized for reduced fan speed

Acoustic Selection and Installation

Compare sound at the required duty

Include the airflow requirement, filter resistance and operator position when requesting a low-noise selection. Acoustic comparisons need the same operating point, weighting, microphone distance and installation conditions. A sound-power figure is not interchangeable with a sound-pressure reading in the room.

Choose the filter and controls together

The final-filter grade and resistance affect the fan speed needed for the duty. Specify the filter seal and service access with the unit. Remote speed controllers and network interfaces are configuration choices; the acoustic construction should also identify the liner facing, enclosure and cleaning compatibility.

Protect the installation and maintenance path

Match the unit to the ceiling opening, load-bearing supports and available overhead space. Keep the inlet clear and avoid rigid service connections that bridge the vibration isolation. Electrical installation must match the supplied motor rating. Isolate the power before servicing and protect the final-filter media during handling.

If ceiling depth is the main constraint, compare the low-profile fan filter unit. For selections driven by added system resistance, see the high-static-pressure fan filter unit.

Planning a Low-Noise Fan Filter Unit specification?

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