Gray polypropylene corrosion-resistant exhaust duct with welded flanges

클린룸 공기 분배 시스템

PP 부식 저항성 배기 덕트

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

견적 요청 제품 찾아보기

상품 소개

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.

주요 기능

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.

고객 제품 관심사

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.

일반적인 응용 프로그램

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

기술 매개변수

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

핵심 재료	PP-H polypropylene sheet or extruded pipe
패널 두께	3–10 mm, selected by section size and pressure
유효 폭	110–1200 mm round diameter or rectangular side dimension
최대 길이	3000–5000 mm per fabricated straight section
강철 면면 두께	3–10 mm homogeneous PP wall in place of steel facing
코어 밀도	Approximately 900–920 kg/m³ solid polypropylene
열전도도 (Thermal Conductivity)	Approximately 0.22 W/(m·K) for polypropylene
표면 마무리	Smooth natural gray PP surface with optional conductive black grade
접합 유형	Hot-gas or extrusion-welded seam with welded flange or socket connection
사용자 정의	의도된 응용 프로그램 및 운영 환경에 따라 사용할 수 있습니다.

사용 가능한 옵션

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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