Double-wall stainless steel high-temperature exhaust duct section

Sistemas de Distribuição de Ar para Sala Limpa

Ducto de exaustão de parede dupla de alta temperatura

A modular double-wall exhaust system with a 316L stainless inner liner, mineral-fiber insulation and stainless outer casing for hot dry process air.

316L Stainless Inner Liner
Integrated Mineral-Fiber Insulation
Double-Wall Modular Body
Up to 600°C Dry Service

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Introdução do produto

High-temperature double-wall exhaust duct contains hot dry process gases within a welded stainless inner liner while mineral-fiber insulation reduces heat transfer to the external casing. Straight cylindrical modules connect with precision male-female ends, high-temperature seals where appropriate and external locking bands. The inner column can expand relative to the outer shell, limiting thermal stress through long routes. The system is suited to ovens, sterilizers, generators and selected industrial exhaust sources where conventional HVAC sheet duct and insulation are inadequate.

Características-chave

A 316L stainless inner liner provides a continuous high-temperature gas path with good corrosion resistance.

Mineral-fiber insulation lowers outer-wall temperature and limits heat loss from the conveyed exhaust.

Modular locking-band joints allow sections, bends and access components to be assembled without broad field welds.

Independent inner-wall movement accommodates thermal expansion along extended exhaust routes.

Preocupações do produto do cliente

A hot exhaust route must contain temperature and pressure while allowing thermal growth and keeping adjacent surfaces within a manageable heat exposure.

Single-wall duct radiates excessive heat into the mechanical space.A mineral-fiber layer separates the hot inner liner from the stainless outer casing.

Rigid joints crack when a long duct line expands during heat-up.The modular inner column is detailed to expand without forcing the outer support shell.

Ordinary elastomer gaskets degrade at process exhaust temperature.Metallic or selected high-temperature joint seals match the actual dry-service temperature.

Thin carbon-steel duct oxidizes rapidly in hot humid exhaust.A welded 316L inner gas path resists heat and a broader range of condensate exposures.

Aplicações típicas

Industrial oven exhaustSterilizer hot-air dischargeGenerator and engine exhaustHigh-temperature process ventilationCommercial kitchen exhaust risers

Parâmetros técnicos

Representative construction ranges for modular high-temperature double-wall exhaust duct are shown below.

Material principal	High-temperature mineral-fiber insulation between stainless steel walls
Painel de espessura	25–50 mm insulation thickness
Largura efetiva	100–1200 mm nominal internal diameter
Comprimento máximo	1000 mm per standard modular straight section
Aço enfrentando espessura	0.6–1.0 mm 316L inner liner and 0.5–0.7 mm 304 outer casing
Densidade Core	100–180 kg/m³ high-temperature mineral fiber
Condutividade térmica	0.040–0.060 W/(m·K), depending on insulation and mean temperature
Superfície acabado	Bright or brushed stainless inner liner with stainless outer casing
Tipo conjunto	Male-female modular socket with temperature-rated seal and external locking band
Customização	Disponível com base na aplicação pretendida e no ambiente operacional.

Opções disponíveis

25 mm or 50 mm mineral insulation304 or 316L outer casingPressure-tight sealing systemElbows, tees, drains and inspection modules

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