Double-wall stainless steel high-temperature exhaust duct section

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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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Ürün tanıtımı

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.

Ana Özellikler

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.

Müşteri Ürün Sorunları

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.

Tipik uygulamalar

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

Teknik parametreler

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

Temel malzemeler	High-temperature mineral-fiber insulation between stainless steel walls
Panel kalınlığı	25–50 mm insulation thickness
Effective Width (Etkili Genişlik)	100–1200 mm nominal internal diameter
Maksimum uzunluk	1000 mm per standard modular straight section
Çelik yüz yüze kalınlığı	0.6–1.0 mm 316L inner liner and 0.5–0.7 mm 304 outer casing
Core Density (Çekirdek Yoğunluğu)	100–180 kg/m³ high-temperature mineral fiber
Termal İletkenlik	0.040–0.060 W/(m·K), depending on insulation and mean temperature
Yüzey bitirme	Bright or brushed stainless inner liner with stainless outer casing
Ortak tip	Male-female modular socket with temperature-rated seal and external locking band
Customization (Özelleşme)	Kullanılan uygulama ve çalışma ortamına göre kullanılabilir.

Mevcut Seçenekler

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

Planning a High-Temperature Double-Wall Exhaust Duct specification?

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