The EPP duct system is made of expanded polypropylene. The system has a number of design and installation advantages:
Quick installation (no additional connectors or screws required),
The system EPP achieves airtightness class C (according to EN 12237),
The inner diameter of the EPP duct system fits the size of the SPIRAL®System components with male ends.
Ducts and fittings are available in the following diameters (inner): Ø100, Ø125, Ø160 and Ø180. The ducts are sold in two lengths: 500 and 1000 mm. The wall thickness is 15mm (standard version, graphite color) or 43mm (expanded
version, black color). Each duct or fitting is supplied with 1 female coupling.