The special usages of PVC canvas tarpaulin-The air duct system
The air duct is a flexible duct that guides the flow of wind along a certain direction. At present, the first generation of rubber covered with a wind duct, the third generation of plastic coated with a wind duct and the third Generation of horizontal and horizontal seamless ducts. The PVC tarpaulin Air duct is divided into a positive pressure air cylinder and a negative pressure air cylinder. The difference between the two is that the positive pressure air cylinder is a 10M section with no skeleton in the middle; and the negative pressure air cylinder is composed of numerous wind tunnel steel rings, also known as the skeleton air cylinder. The positive pressure PVC coated tarpaulin air duct is blown to the outside, while the negative pressure air duct is sucking air inside.
Features and performance
Positive pressure air duct: It adopts heat-sealing integral one-time forming process, with no joints in the longitudinal direction, and has the characteristics of flame retardant, antistatic, small wind resistance, low air leakage rate and high strength.
Negative pressure air duct: It is made of seamless tube blank and carbon spiral spring steel wire, which is made by advanced heat sealing process. When the air is blown, air duct tarpaulin material is easy to turn, and another purpose is to draw air from the roadway, which is convenient for transportation and storage (can be stretched) and has a long service life.
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