Συστήματα πλαστικών σωληνώσεων υπόγειων και υπέργειων δικτύων αποστράγγισης και αποχέτευσης υπό πίεση - Μη πλαστικοποιημένο πολυ(βινυλοχλωρίδιο) (PVC-U) - Μέρος 1: Προδιαγραφές για τα δομικά στοχεία του δικτύου σωληνώσεων και το σύστημα

This European Standard specifies requirements for unplasticized poly(vinyl chloride) (PVC-U) piping systems in the field of buried and above-ground drainage and sewerage under pressure. In conjunction with one or more of Parts 1 to 5 of EN 1452 and ENV 1452-6, it is applicable to PVC-U pipes, fittings, valves and ancillary equipment, their joints and to joints with components of other plastics and non-plastics materials intended to be used for the conveyance of sewage and drainage under pressure at approximately 20 °C as follows: a) buried in the ground; b) sea outfalls; c) laid in inland waters and/or in ducts; d) suspended below bridges. This standard is also applicable to components for the continuous conveyance of sewage and drainage up to and including 45 °C as required in EN 773 [1]. NOTE 1 In this case the pressure derating factors given in EN 1452-2:1999, Figure A.1 apply. NOTE 2 No pressure reduction is necessary for the drainage of waste waters at short-term peak temperatures up to 45 °C (cumulated for 2 years during a service life of 50 years).