Ductile sewer pipes

Ductile sewer pipes are standardised in DIN EN 598 for gravity-flow sewers and forced-flow pipelines pressurised up to 6 bar (600 kPa) in the nominal diameters DN 100 to DN 2000 [20]. They are used for combined, sanitary or storm water pipe-... 

Table 2 Material characteristics and properties of ductile sewer pipes [21]...

To check the suitability of the sewer pipes for their use as a one-pipe system for waste water pipelines in drinking-water protected areas, an expert s report was commissioned [23]. Table 3 summarises the results of this report. Ductile sewer pipes are particularly suitable for the repetitive tests specified in the guidelines [24] with water or air or vacuum tests [25],... 

The vacuum testing of ductile sewer pipes has been newly developed for this. In contrast to the water overpressure test procedure, this new test method has the advantage that it can be carried out in a few hours, it doesn t require large amounts of test water and the test itself is especially enhanced. 

ASTM A746—Ductile iron gravity sewer, pipe. 

---