Polyvinyl Duct (PVS)
Sheet Metal Connectors, Inc. PVS spiral pipe is formed from a coil of metal into a rigid PVC tube with a 4-ply spiral lockseam. It has smooth interior for low friction loss with the grooved seam entirely on the outside. This pipe has a resistance to crushing approximately 2 1/2 times that of longitudinal lockseam. Optional corrugations are available which increase the rigidity of the pipe by approximately 300%. Pipe sections can be joined together by an E-Z Flange with Barrel Clamp, E-Z Flange Jr. with Barrel Clamp, or Standard Spiral Pipe Connector.
https://www.smcduct.com/polyvinyl-coated-underground-duct-systems-and-fume-exhaust-systems-catalog/
Polyvinyl Duct (PVS) Catalog & Specs
Polyvinyl Duct (PVS)
Polyvinyl Duct (PVS)
Polyvinyl Duct (PVS)
Polyvinyl Duct (PVS)
Polyvinyl Duct (PVS)
Polyvinyl Duct (PVS)
Polyvinyl Duct (PVS)
Polyvinyl Duct (PVS)
Polyvinyl Duct (PVS)
Polyvinyl Duct (PVS)
Polyvinyl Duct (PVS)
Polyvinyl Duct (PVS)