STJH-GALVANIZED-STEEL-RECTANGULAR-AIR-DUCT-300X200

Galvanized Steel Rectangular Air Duct 300 x 200 mm

Compact rectangular branch duct for distributing conditioned air through shallow service spaces.

Low-height section fits constrained branch routes.
Zinc-coated steel protects concealed indoor duct surfaces.
Profiled ends simplify repeatable transverse connections.

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Product Introduction

The 300 x 200 mm airway provides a modest rectangular section for terminal branches. Folded galvanized sheet walls terminate in joining profiles, allowing adjacent sections to be clamped around a continuous seal.

Key Features

Low-height section fits constrained branch routes.
Zinc-coated steel protects concealed indoor duct surfaces.
Profiled ends simplify repeatable transverse connections.

Technical Parameters

Internal Width	300 mm
Internal Height	200 mm
Airway Area	0.060 m²
Material	Z275 hot-dip galvanized steel
Joint Type	Joining profiles with seal moulding
Pressure Range	-750 to +1000 Pa
Airtightness Configuration	Class C sealed duct system
Maximum Support Spacing	2400 mm
Seal Temperature Range	-70 to +80 °C
Customization	Available for the intended application and operating environment.

Applications

Individual terminal supply branches
Small return-air connections

Solutions for Your Application

The branch must pass below other ceiling services.

The 200 mm airway height provides a shallow rectangular routing option.

Numerous short sections can introduce leakage points.

Continuous joint seals and mechanically secured profiles close the transverse interfaces.

Available Options

Cut-to-length sections
Matching rectangular bends and transitions

Planning a Galvanized Steel Rectangular Air Duct 300 x 200 mm specification?

Send us your dimensions, installation conditions, performance targets and required surface finish.

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