INTEGRAL TT PUX Range
Ductile iron pipe solutions for highly aggressive soils
STANDARD All Terrain or TT (“Tous Terrain”) ductile iron pipes are protected by an exterior coating that is suitable for extremely corrosive soil in which a zinc coating is no longer sufficient.
The pipes come in two types according to the diameter - PE or PUX:
- For diameters between DN80 and 1000 mm: TT PE pipes, coated with a 2 mm layer of extruded polyethylene over a BioZinalium coating (conforming to standard EN 14628)
- For diameters between DN800 and 2000 mm: TT PUX pipes, coated with a 1 mm layer of polyurethane thermally sprayed onto shot-blasted ductile cast iron (conforming to standard EN 15189)
The fittings for these pipes have a thick epoxy external coating for the small diameters and a polyurethane coating for the larger ones. The range of application of coatings is specified in Annex D of standard EN 545: please consult the list of associted fittings.
These products comply with recently-introduced European standards relating to special coatings for ductile iron pipes intended for highly corrosive soils: EN 14628 for TT PE, EN15189 for TT PUX, EN 14901 for epoxy coating for fittings, and EN 15655 for polyurethane coating for large-diameter fittings.
Compliance with these standards is the guarantee of a highly demanding level in terms of performances, production and quality control.
- Tried and tested: in addition to rigorous tests performed in the laboratory, the coatings on pipes laid in the aggressive marine soil of the bay of Mont Saint Michel in France have been observed over a very long period, demonstrating their efficiency and longevity. They have also been tried and tested in the large Taweelah and Shuweihat projects in the salt deserts of the United Arab Emirates.
- On-site support: the PAM expert technical teams can conduct soil surveys on request to establish which ductile iron pipe solution is most appropriate in the given geographical terrain and work site conditions.
These PAM technical teams can conduct soil surveys as per the customers’ request.
