The PP-HT internal drainage system consists of a set of polypropylene pipes and fittings, adapted for interconnection by bell couplings with elastomer seals. The pipes are manufactured by extrusion, while the couplings are injection moulded. Polypropylene is characterised by high resistance to various types of aggressive chemical substances found in wastewater (e.g. from laboratories, laundries, hospitals).

Restrictions on the use of this material relate to wastewater containing highly oxidising substances, such as concentrated sulphuric acid, nitric acid, chlorine, bromine and derivatives. Due to the biological neutrality of the material from which the individual elements of the sewage system are made, the above system is recommended for use in the food industry.

Pipes and fittings are manufactured from imported Western European pellets of grey and white polypropylene granules of guaranteed quality, as confirmed by the quality assurance system implemented in the company ISO 9001:2000.

Purpose of the programme

They are intended, among other things, for the construction of water supply networks, sewerage networks and for the transport of aggressive liquids.

• Construction of single and multi-family houses
• Offices, hospitals, laboratories, hotels
• Industrial installations
• Food industry and agriculture

Standards

EN 1451-1 - Plastics piping systems for waste and wastewater drainage and sewerage (low and high temperature) in buildings - Polypropylene (PP) - Part 1: Specification for pipes, fittings and systems.