Explosion proof ventilation flexible ducts

Flexible duct made of fire-retardant PVC material and spring steel ring, it is able to endure the high temperature,the acid,the alkali and the oleic acid. It is easy to turn and to connect and convenient to schlep. It is used to connect with the portable ventilator work for exhause air, extracting dust and supply fresh air.

Size: 100mm-1000mm

Thickness:0.28mm,0.35mm,0.4mm.

Length: 1m-100m.