Gray polypropylene corrosion-resistant exhaust duct with welded flanges

Sistem Distribusi Udara Cleanroom

Saluran Knalpot Tahan Korosi PP

A welded polypropylene duct system for extracting humid or chemically aggressive air that would rapidly attack ordinary galvanized steel ductwork.

Chemical-Resistant PP Wall
Thermoplastic Welded Seams
Smooth Non-Metallic Interior
Rectangular or Round Fabrication

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Perkenalan produk

Polypropylene exhaust ductwork provides a non-metallic path for corrosive vapors from laboratories, chemical rooms and wet processes. Straight sections and fittings are fabricated from homogeneous PP sheet or pipe, joined by hot-gas or extrusion welding to create continuous thermoplastic seams. Round duct is preferred for pressure stability, while rectangular sections integrate with scrubbers and equipment plenums. Supports allow for thermal expansion, and the selected PP grade is matched to the chemical concentration and operating temperature.

Fitur utama:

Homogeneous polypropylene resists many acids, alkalis and humid exhaust conditions without a metal coating.

Thermoplastic welding creates continuous seams of compatible material rather than exposed mechanical folds.

The smooth low-surface-energy interior discourages residue adhesion and simplifies rinsing.

Lightweight fabricated sections reduce support loads compared with thick corrosion-resistant metal systems.

Kekhawatiran produk pelanggan

Corrosive exhaust selection must consider the complete chemical mixture, condensate, temperature and thermal movement rather than material name alone.

Acidic condensate removes zinc coating and perforates steel exhaust duct.A compatible PP grade provides corrosion resistance through the full wall thickness.

Rigidly fixed plastic duct buckles as operating temperature changes.Guided supports and planned expansion sections allow controlled axial movement.

Poor field welds leave pinholes in hazardous exhaust seams.Qualified thermoplastic welding and visual seam inspection produce continuous fusion joints.

An incompatible solvent softens the selected plastic.Material selection is checked against the actual vapor and condensate composition before fabrication.

Aplikasi yang Tipis

Laboratory fume extractionChemical storage-room exhaustWet-process ventilationBattery manufacturing exhaustScrubber inlet and outlet ductwork

Parameter teknis

Representative ranges for fabricated polypropylene corrosive-exhaust ductwork are listed below.

Bahan inti	PP-H polypropylene sheet or extruded pipe
Ketebalan Panel (Panel Thickness)	3–10 mm, selected by section size and pressure
Efektif lebar	110–1200 mm round diameter or rectangular side dimension
Panjang maksimum	3000–5000 mm per fabricated straight section
Baja menghadap ketebalan	3–10 mm homogeneous PP wall in place of steel facing
Kepadatan inti (core density)	Approximately 900–920 kg/m³ solid polypropylene
Konduktivitas Termal (Thermal Conductivity)	Approximately 0.22 W/(m·K) for polypropylene
Permukaan selesai	Smooth natural gray PP surface with optional conductive black grade
Jenis Bersama	Hot-gas or extrusion-welded seam with welded flange or socket connection
Customization (Kustomisasi)	Tersedia berdasarkan aplikasi yang dimaksudkan dan lingkungan operasi.

Pilihan yang tersedia

PP-H, flame-retardant PP or conductive PPRound or rectangular geometryWelded inspection openings and drainsExpansion joints and scrubber transition pieces

Planning a PP Corrosion-Resistant Exhaust Duct specification?

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