Spiral Lock Seam Duct Is Constructed With An Interlocking Helical Seam That Runs The Length Of The Duct. The Lockseam Is Formed On The Outside Of The Duct, Providing A Smooth Interior That Results In Minimal Friction Loss. This Seam Increases The Duct’s Rigidity. Spiral Lockseam Duct Can Be Fabricated In Lengths Of 6 Meter Or Greater Heavy Gauges Or Large Diameters. The Longitudinal Seam Of The Duct Is Solid Welded.

Type: SP, SPC (Corrugation), SPL

Material: Galvanized, Stainless Steel, Aluminum