Double-layer pipes for gas supply are manufactured using PE 100 RC, which is more resistant than conventional PE 100 to abrasive media. PE 100 RC is specifically designed for alternative pipe laying methods. This material complies with the requirements of PAS 1075: 2009-04 and EN 1555-1-2010.
Due to the high melt viscosity during extrusion of PE 100 RC, its long-term hydrostatic strength, exceptional resistance to long-term loads and high resistance to crack propagation, polyethylene pipes made with PE 100 RC can be more widely used in the installation of pressure gas pipelines (for example: it is possible to lay pipes without sand cushion and sanding, as well as the possibility of reusing excavated soil when installing in open trenches, as well as with trenchless laying methods).
The main advantages of the protective layer PE 100 RC:
Polyethylene gas pipes with a PE 100 RC protective layer are connected in the same way as conventional PE 100 pipes by welding (with a heated butt tool or with the use of thermistor couplings).
The upper protective layer can be easily removed from the ends of the pipes, if necessary, allowing the use of socket thermistor welding.
Butt welding is allowed without removing the coating. The range of PROTECT pipes includes standard sizes from 110 mm to 630 mm.