In April 2016, Sulong became the gold supplier of ventilation tubes for Guangzhou Metro construction projects. To ensure the Metro tunnel construction in safety, Sulong has already produced more environmental friendly and lower air leakage rate PVC ventilation tubes. This kind of ventilation tubes are light weight to reduce the labor costs, but also have the advantages of strong compressive and easy installation, and there are resistance against flame, anti-static, cold, UV-light, etc.
Sulong ventilation tubes can be used in many fields: Metro tunnel, Immersed tube tunnel, Highway, Railway, Hydropower Station, Underground mine project, etc. We are committed to work closely with customers and develop tailored optimizing ventilation solution. We believe that Sulong ventilation technology is a good choice for all kinds of infrastructure construction projects.
Sulong ventilation tube have positive flow tube and negative flow tube. Positive flow tube includes lay flat tube, spiral tube and special sharp tube, its diameter can be made from 150mm to 3000mm and its length from 10m to 500m. Negative flow tube also called flexible ventilation tube, its diameter can be made from 300mm to 2000mm, its length from 10m to 50m, and its spiral wire pitch from 50mm to 300mm. Every two sections are connected with industrial zipper or end coil.