Rectangular duct silencer with multiple internal acoustic splitters

クリーンルーム空気分配システム

矩形ダクトサイレンサー

A straight rectangular sound attenuator with aerodynamic splitters that absorbs fan and airflow noise within the duct path.

Aerodynamic Acoustic Splitters
Straight-Through Air Path
Perforated Protective Liners
Cleanroom Media Options

見積もりリクエスト製品案内

商品紹介

A rectangular duct silencer places parallel acoustic splitters inside a sealed galvanized casing. Perforated metal faces expose sound energy to the protected absorptive media while maintaining a defined straight airflow passage. Splitter thickness, air gap and overall length are selected to balance insertion loss against system pressure drop. For hygiene-sensitive air, polymer film liners or packless resonant construction isolate fibrous media from the airstream.

主要な特徴

Parallel splitter geometry provides broad-band attenuation without changing the direction of airflow.

Aerodynamic noses and tails reduce turbulence where air enters and leaves each baffle.

Perforated metal or film-protected faces prevent erosion of acoustic fill into the air stream.

Low-, medium- and high-velocity configurations match different pressure-drop allowances.

アプリケーションのソリューション

A duct silencer must reduce the relevant frequency bands without consuming the fan pressure needed for filters and terminal devices.

Fan blade-pass noise travels directly through the supply main.Selected splitter spacing and length absorb energy in the dominant octave bands.

A restrictive silencer increases fan energy and reduces cleanroom airflow.Air-gap area and aerodynamic splitter profiles are sized for the scheduled face velocity.

Fibrous acoustic media is unacceptable in a critical supply stream.Film-lined or packless construction isolates or eliminates exposed fibrous fill.

The silencer casing leaks around splitter penetrations and seams.Sealed outer construction maintains the same leakage duty as the connected duct system.

典型的な用途

Air-handling-unit discharge noise controlCleanroom supply-air mainsLaboratory exhaust systemsFan intake and outlet plenumsMechanical-room duct penetrations

技術的なパラメータ

Representative construction ranges for a rectangular HVAC duct silencer are summarized below.

コア材料	High-density glass fiber, mineral wool or packless resonant acoustic elements
パネルの厚さ	100–300 mm acoustic splitter thickness
有効幅	200–1600 mm duct connection width
最大長さ	600–2400 mm silencer casing length
鋼鉄の厚さを直面する	0.8–1.2 mm galvanized casing and perforated liner
コア密度	32–64 kg/m³ absorptive acoustic media
熱伝導率	0.034–0.041 W/(m·K) for straight-splitter absorptive fiber media
表面仕上げ	G90 galvanized casing with perforated galvanized, film-lined or stainless airstream faces
ジョイントタイプ	Rectangular flange connection matched to duct size with sealed casing seams
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

Absorptive, film-lined or packless constructionGalvanized, aluminum or stainless casingLow-, medium- or high-velocity splitter geometryExtended casing for enhanced low-frequency attenuation

Planning a Rectangular Duct Silencer specification?

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