HDPE black pipe with yellow coextruded stripes for underground and gas pressure networks.
High Density Polyethylene pipe of PE100 – RC type for transport of pressurized fluids. The material has a high shock resistance. It is particularly recommended in unstable soils and has excellent corrosion resistance even in aggressive soils and in the presence of stray currents; therefore, it can be embedded without sand-bed. The smooth internal wall surface results in reduced pressure loss and the low roughness of the material prevents the occurrence of scaling. Polyethylene is resistant to a wide range of chemicals and solvents and to most biological agents present in the soil. In installations with “trenchless” techniques (similar to negligent poses “without sand bedding”), point loads and incisions can originate on the external wall leading to pipe break through the mechanism of slow crack growth (SCG). This product is resistant to SCG, as prescribed by PAS 1075 and other specifications regarding RC pipes.
TECHNICAL SPECIFICATION (type1)
RC pipe (Resistant to Crack) of TYPE1 for gas underground pressure networks, made of High Density Polyethylene PE100 resin with high resistance to slow crack growth, pigmented and stabilized in granules at source, black with yellow-orange coextruded stripes, fully complying with UNI EN 1555, ISO 4437 and technical specification DIN PAS 1075, both included in the “technical specification IIP MOD. 1.1/14 – Rev. 0″ with issue of Piip/C quality mark. Pipe samples shall have successfully passed all the tests required by the reference standards above, including the PLT (Point Loading Test) for resistance to slow crack growth > 8760 h. The marking shall report the code of the raw material used for the production of the pipe, as well as other elements required by the reference standards.