Galvanized steel rectangular air duct section with reinforced flat panels

クリーンルーム空気分配システム

亜鉛メッキ鋼の長方形の空気ダクト

A rigid G90 galvanized sheet-steel duct fabricated in rectangular sections for space-efficient cleanroom supply, return and general ventilation routes.

G90 Zinc-Coated Steel
Space-Efficient Rectangular Form
Reinforced Flat Panels
Sealed Flange Connections

見積もりリクエスト製品案内

商品紹介

Galvanized steel rectangular ductwork provides a durable and economical air path where ceiling zones, risers or equipment connections favor a rectangular section. Straight sections are formed from zinc-coated sheet steel with Pittsburgh-lock or welded longitudinal seams, transverse reinforcement and flanged ends selected for the duct dimensions and pressure duty. Smooth internal surfaces reduce friction and provide accessible wipe-down areas, while mastic or closed-cell gaskets seal the transverse joints. The format integrates readily with dampers, filters, terminal housings and rectangular equipment plenums.

主要な特徴

Zinc-coated sheet steel provides practical corrosion protection for conditioned indoor air systems.

Rectangular proportions use shallow ceiling voids more efficiently than equivalent circular ductwork.

Standing seams, beading or external reinforcement limit panel vibration on larger duct faces.

Flanged transverse joints allow long routes to be assembled from replaceable factory-made sections.

お客様の製品に関する懸念事項

Rectangular ductwork must remain rigid, clean and sufficiently airtight even when broad panels and numerous field joints are installed above a congested cleanroom ceiling.

Wide duct faces drum or flex when fan pressure changes.Sheet gauge, cross-breaking and reinforcement spacing are selected for the largest panel dimension and pressure class.

Air leakage at repeated transverse joints wastes conditioned cleanroom airflow.Matched flange corners, continuous gasket and exterior sealant create a consistent joint compression path.

A round duct cannot fit the available shallow ceiling zone.A low-profile rectangular aspect ratio preserves flow area while reducing installed depth.

Exposed cut edges corrode after site modification.Cut edges are deburred, cleaned and protected with a compatible zinc-rich repair coating.

典型的な用途

Cleanroom supply-air mainsReturn-air and recirculation ductsAir-handling-unit connectionsCeiling service corridorsGeneral laboratory ventilation

技術的なパラメータ

Common fabrication ranges for indoor G90 galvanized rectangular air duct are listed below.

コア材料	G90 hot-dip galvanized carbon-steel sheet
パネルの厚さ	0.55–1.50 mm, selected by duct size and pressure duty
有効幅	150–2000 mm rectangular side dimension
最大長さ	1500 mm per standard fabricated section
鋼鉄の厚さを直面する	0.55–1.50 mm galvanized sheet body
コア密度	Approximately 7850 kg/m³ solid steel construction
熱伝導率	Approximately 50–55 W/(m·K) for low-carbon galvanized sheet
表面仕上げ	Continuous G90 zinc coating with optional external powder coating
ジョイントタイプ	TDC/TDF or angle flange with closed-cell gasket and sealed corners
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

Internal or external thermal insulationPowder-coated external finishAccess doors and test portsTransitions, offsets and equipment plenums

Planning a Galvanized Steel Rectangular Air Duct 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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