CH
Pipe HREX, extra sealed, spiral seam, HallströmArt. no.: 9945012
Locked spiral-seamed ventilation ducts that are extra-sealed at the seam (previously called liquid-tight). VENT pipes for ventilation systems.
Dimensions and tolerances according to standard SS-EN 1506. The pipes are made of hot-dip galvanized steel sheet DX51 + Z275MAC according to SS-EN 10346.
Surface coating with Z275 meets corrosion class C3 according to SS-EN ISO 12944-2. Ducts meet tightness class D according to SS-EN 12237.
Type approval 1666/78
The weight is expressed in kilograms per meter +/- 10%
