PEX   Pipes
Outside Diameter ( mm ) PN 20 Wall Thickness ( mm ) PN 12.5 Wall Thickness ( mm )
Minimal Min Max Min Max Min Max
16 16 16.3 2.2 2.5 1.8 2.2
20 20 20.3 2.8 3.3 1.9 2.3
25 25 25.3 3.5 4.1 2.3 2.8
32 32 32.3 4.4 5.1 2.9 3.4
40 40 40.4 5.5 6.3 3.7 4.3