Jiangsu Sulong Eco-Technologies Co., Ltd
pvc ventilation hose,ventilation air duct,ventilation hose,tunnel ventilation hose,negative ventilation hose, Manufacturer and Supplier - China(CN)
Information for Buyers
pvc positive ventilation
“SL” Positive ventilation hose has four types: Standard type, Zipper type, Y-Shaped type and Special-Shaped and can be customized for every section (Length from 10 to 200m).
Every two sections are connected with industrial zipper or end coil.
For the purpose of tunnel driving safety, 180℃ horizontal double hook is used for ducting diameter more than 1.5m. 45 ℃ spiral processing technique applied to reinforce strength of anti-pressure and anti-tear.
Quality standard abides by GB/T9900-2008 etc.
•Light weight and high strength
•Low air leakage
•Low air resistance
•Long service life
•Safe and Environmental protection
Positive Ventilation hose is also named as pushing type ventilation hose and widely used in underground project of coal mines, tunnels, subway and so on.
Working temperature: -20℃ ~ 70 ℃
Standard Length: 10m
Standard color: Yellow, black
Connection: Zipper connection
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