Round galvanized steel spiral duct with continuous helical lock seam

클린룸 공기 분배 시스템

나선형 아연금 강철 덕트

A round galvanized steel duct formed with a continuous spiral lock seam for rigid, aerodynamically efficient cleanroom supply and return routes.

Continuous Spiral Lock Seam
Rigid Round Geometry
Low-Friction Air Path
Gasketed Fitting System

견적 요청 제품 찾아보기

상품 소개

Spiral duct is manufactured by helically forming galvanized strip into a rigid round tube with a continuous locked seam. The circular cross-section resists pressure deformation efficiently and usually requires less reinforcement than a broad rectangular panel. Factory-made elbows, branches and reducers use male insertion ends with double-lip gaskets or sealed slip joints. Exposed installations benefit from the regular spiral appearance, while concealed cleanroom services gain a compact duct with predictable support and airflow characteristics.

주요 기능

The helical lock seam stiffens the duct wall along its full length without separate external bracing.

A circular bore distributes internal pressure uniformly and supports smooth airflow through long runs.

Double-lip gasketed fittings shorten assembly time and create repeatable insertion joints.

Standard round accessories simplify changes in diameter, direction and branch layout.

고객 제품 관심사

Round duct routes must balance ceiling-space use, joint leakage, hanger spacing and clean fitting transitions at every branch.

Thin round duct ovalizes during transport or hanging.Spiral seam stiffness and correctly spaced circular supports retain the designed diameter.

Field-applied sealant is inconsistent around every fitting.Factory-fitted double-lip gaskets provide uniform circumferential sealing at insertion joints.

Abrupt branch fittings create turbulence and excess pressure loss.Swept bends and gradual conical transitions preserve the round flow path.

Condensation forms on exposed cold supply duct.A continuous external vapor-sealed insulation system is added for the scheduled air temperature and humidity.

일반적인 응용 프로그램

Cleanroom supply-air branchesExposed technical-space ductworkReturn-air systemsLaboratory general exhaustAir-handling equipment connections

기술 매개변수

Typical manufacturing ranges for galvanized spiral duct used in HVAC air distribution are listed below.

핵심 재료	Hot-dip galvanized carbon-steel strip
패널 두께	0.45–0.90 mm spiral-formed wall
유효 폭	80–1250 mm nominal internal diameter
최대 길이	3000–6000 mm standard straight length
강철 면면 두께	0.45–0.90 mm galvanized steel wall
코어 밀도	Approximately 7850 kg/m³ solid steel construction
열전도도 (Thermal Conductivity)	Approximately 48–54 W/(m·K) for spiral-forming galvanized strip
표면 마무리	Bright galvanized surface with optional external powder coating
접합 유형	Gasketed male-female slip joint secured with screws or sealed rivets
사용자 정의	의도된 응용 프로그램 및 운영 환경에 따라 사용할 수 있습니다.

사용 가능한 옵션

Galvanized, aluminum or stainless constructionFactory-applied external insulationPowder-coated exposed finishGasketed elbows, tees and reducers

Planning a Spiral Galvanized Steel Duct specification?

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