ČSN EN 17176-2+A1 (646446)

Die Annotation des Normtextes ČSN EN 17176-2+A1 (646446):

A1 This part of EN 17176 specifies the characteristics of solid-wall pipes made of oriented unplasticized poly(vinyl chloride) (PVC-O) for piping systems intended for water supply and for buried drainage, sewerage, treated waste water and irrigation under pressure or above-ground where protected from direct sunlight. It also specifies the test parameters for the test methods referred to in this document. In conjunction with EN 17176-1 and EN 17176-5, it is applicable to oriented PVC-O pipes with or without integral socket intended to be used for the following: a) water mains and services lines; b) conveyance of water for both outside and inside buildings; c) drainage, sewerage and treated waste water under pressure; d) irrigation under pressure. It is applicable to piping systems intended for the supply of water with a maximum allowable operating pressure (PFA) up to and including 25 bar1). The piping system according to this document is intended for the conveyance of cold water up to and including 45 °C and especially in those applications where special performance requirements are needed, such as impact loads and pressure fluctuations. For temperatures between 25 °C and 45 °C, Figure C.1 of this document applies. This part of EN 17176 specifies a range of pipe sizes and pressure classes and gives a requirement and recommendations concerning colours. NOTE - It is the responsibility of the purchaser or specifier to make the appropriate selections from these aspects, taking into account their particular requirements and any relevant national regulations and installation practices or codes