What do the pressure ratings and classes of pvc pipe and ABS pipe mean?
The different classes refer to different pressure ratings There are several groups of pvc pipe and abs pipe classification, the most typical being the American ASTM D 1785 Schedule and BS 3505/6 Class systems (such as class C or class E) and the Metric DIN 8062 or KIWA 49 / UNE 53.112 PN systems (such as PN10 or PN16) . The tables below give information for such systems. Note that with the Class system, the pressure rating of every pipe size is the same within that class, but with the Schedule system the pressure ratings change. This gets even more confusing for the metric pipe as both the DN and KIWA pipe are rated at the same pressure (i.e. 10 bar for PN10), but the DN rating has a greater wall thickness. The most common classifications used are Schedule 40, Class C and PN10. We are also able to supply other classifications such as ASTM D 2241 SDR.
