Ductile iron pipe solutions for highly aggressive soils TT PE / TT PUX range Water supply and distribution NEW EN 545: 2010 ISO 2531: 2009 Compliant with European standards EN 14628, EN 14901, EN 15189, EN 15655 STANDARD TT PE DN 600 TO 700 UNIVERSAL TT PE DN 80 TO 700 UNIVERSAL TT PUX DN 800 TO 1200 UNIVERSAL FITTINGS DN 800 TO 1200 Comprehensive pipe systems

| Ductile iron pipe solutions | for highly aggressive soils Introduction•••••••••••••••••••••••••••••••••••••••••• p 2 Highly aggressive soils••••••••••••••••••••••••••••••• p 3 Protection solutions•••••••••••••••••••••••••••••••••• p 6 The TT range on-site!••••••••••••••••••••••••••••••••• p 9  TT PE range - DN 80 to 700•••••••••••••••••••••••••• p 11 TT PUX range - DN 800 to 2000•••••••••••••••••••••• p 15 Fittings coatings••••••••••••••••••••••••••••••••••••• p 18 Pipe specifications •••••••••••••••••••••••••••••••••• p 20 Joints and anchoring solutions' performances••••••• p 24 Working with...

Ductile iron pipes are appreciated for their outstanding durability. Whenever water supply players require high quality of service, particularly in terms of performance, leaktightness and reliability, they systematically turn to ductile iron products. This applies both in industrialized nations (Europe, USA, Japan, etc.) and in the emerging countries such as China, India and Middle Eastern countries, where ductile iron is used to build hydraulic infrastructures. Not only is this infrastructure of strategic importance to their economic and industrial development, it also plays a key role in their...

| Ductile iron pipe solutions | for highly aggressive soils Highly aggressive soils Buried pipes are subjected to various loads and aggressions, including soil and backfill corrosivity. Standard version of Saint-Gobain PAM pipes feature either a conventional zinc coating or the new ZINALIUM coating, which provide a sufficient level of corrosion resistance for most situations. However, the soils's corrosivity must be assessed to determine whether special protective measures and high performance coatings are required. Saint-Gobain PAM engineering teams carry out soil analyses on customers' request....

| Ductile iron pipe solutions | for highly aggressive soils Highly aggressive soils Based on an initial analysis, soil can be categorized as: > Low risk: • Sand and gravel • Hardcore materials • Limestone > High risk: • Marl • Clay > Very high risk: • Gypsum • Pyrites (iron pyrite, chalcopyrite: copper pyrite) • alts for chemical industries S (sodium chloride, lime sulphate) (lignite, peat, coal, bituminous materials). Any information relating to fossil present in the soil is valuable. In particular, the presence of pyritised ammonites indicates that the soil contains pyrites (iron sulphide)...

Protection solutions for highly aggressive soils Experience acquired by Saint-Gobain PAM over several decades shows that a large proportion of soils is only weakly or moderately corrosive, enabling Saint-Gobain PAM pipes to be safely used with their standard, zinc, or ZINALIUM external protection. Saint-Gobain PAM's offering is structured around 2 levels of protection: - Standard solution - ZINALIUM for DN 60 to 600 (700 to 1000 alternatively) range and zinc for DN 700 to 2000 products for the vast majority of circumstances - Special solution - TT PE for the DN 80 to 700 range, and TT PUX for...

Ductile iron pipe solutions | 2011-2 for highly aggressive soils Tramways - TT PE and TT PUX offer the ideal solutions Over the last few years, tramways have been making a comeback as a means of urban public transport. Stray currents generated by the tramway's electric power supply system can corrode metal unless appropriate protective measures are taken. TT PE and TT PUX coatings are the best answer to this problem. The dielectric properties of the polyethylene or polyurethane layers dependably insulate ductile iron pipes against the effects of stray currents. Alternative coatings, particularly...

New European standards The TT range complies with the four recently-introduced European standards relating to special coatings for ductile iron pipe systems. Standards available at www.afnor.org and www.bsigroup.com

| Ductile iron pipe solutions | for highly aggressive soils

| Ductile iron pipe solutions | for highly aggressive soils TT PE range - DN 80 to 700 A polyethylene coating applied in Saint-Gobain PAM factories The polyethylene coating is extruded over the pipes at Saint-Gobain PAM plants. By performing this process in-house, the company is able to carefully monitor and control the conditions in which the coating is applied. After being coated, each pipe is individually tested using a holiday detector, to check that the coating affords uninterrupted protection by forming a sealed barrier against the external environment. Two different manufacturing processes...