Flexible Ventilation Ducts

Flexible PVC ventilation ducts for tunnel and mine ventilation projects, manufactured with flame-retardant PVC membrane materials and available in long duct sections for underground air supply applications.

用于隧道和矿山通风工程的 PVC 柔性通风风筒，采用阻燃 PVC 膜材制造，可提供长节风筒，适用于地下施工送风应用。

Supplied by Sichuan Foresight Composite Materials Co., Ltd.

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Overview

Product overview

Foresight flexible ventilation ducts are designed for tunnel and mine ventilation projects, supporting air delivery in underground construction environments. The ducts are made from PVC flexible membrane materials and can be customized by diameter, length, fire resistance standard and optional antistatic performance according to project requirements.

Foresight conducts independent research and development of PVC flexible ventilation duct membrane formulations. The membrane composition can be tailored to season, application and performance requirements, helping improve product quality stability, cost-effectiveness, service life and environmental adaptability.

The JULI® tunnel ventilation duct is designed to comply with multiple fire resistance standards, including DIN4102 B1, NFPA701, EN13501, MSHA and DIN75200, with SGS test results for fire resistance. High flame-retardant performance helps reduce fire-related risks in underground ventilation environments.

Foresight’s self-developed automatic production line can produce long duct sections of 100 m, 200 m and 300 m. The line can complete duct body welding, folding and welding of suspension fins or reinforcement patches, improving production efficiency and helping reduce air leakage from tunnel ventilation ducts.

远见柔性通风风筒面向隧道和矿山通风工程，用于地下施工环境中的空气输送。产品采用 PVC 柔性膜材制造，可根据项目需求定制直径、长度、阻燃标准及可选抗静电性能。

远见具备 PVC 柔性通风风筒膜材配方自主研发能力，可根据季节、应用场景和性能要求调整膜材组成，从而提升产品质量稳定性、成本效益、使用寿命和环境适应性。

JULI® 隧道通风风筒可满足 DIN4102 B1、NFPA701、EN13501、MSHA 和 DIN75200 等多项阻燃标准，并具有相应 SGS 阻燃测试结果。较高的阻燃性能有助于降低地下通风环境中的火灾相关风险。

远见自研自动化生产线可生产 100 m、200 m 和 300 m 长节风筒，并可完成风筒筒体焊接、折叠以及吊挂边或补强片焊接，有助于提高生产效率并减少隧道通风风筒漏风。

Applications

Typical applications

Tunnel ventilation projects
Mine ventilation projects
Underground construction ventilation
Positive-pressure air supply systems
Long-distance temporary ventilation
Infrastructure tunneling works

隧道通风工程
矿山通风工程
地下施工通风
正压送风系统
长距离临时通风
基础设施隧道工程

Features

Key product features

PVC flexible membrane duct structure
Independent membrane formulation R&D
Fire-retardant standards with SGS test results
Optional antistatic performance
Long duct sections of up to 300 m
Automatic welding of duct body and suspension fins

PVC 柔性膜材风筒结构
具备膜材配方自主研发能力
阻燃标准具有 SGS 测试结果
可选抗静电性能
可提供最长 300 m 长节风筒
支持筒体及吊挂边自动化焊接

Technical Information

Technical parameters

Diameter: 300 mm to 3,000 mm.
Length: 10 m to 300 m.
Available long duct sections: 100 m, 200 m and 300 m.
Fire resistance standards: MSHA, DIN4102 B1, DIN75200, NFPA701 and EN13501.
Fire resistance testing: SGS test results available for relevant standards.
Antistatic performance: optional.
Production process: automatic duct body welding, folding and welding of suspension fins or reinforcement patches.
Application area: tunnel and mine ventilation projects.