SP R.20

Diameter Nominal - DN - (mm) Nominal Pipe Size - NPS - (inches) 6 1/8 8 ¼ 10 3/8 15 ½ 20 ¾ 25 1 32 1 ¼ 40 1 ½ 50 2 65 2 ½ 80 3 100 4 150 6 200 8 250 10 300 12 350 14 400 16 450 18 500 20 550 22 600 24 650 26 700 28 750 30 800 32 900 36 1 000 40 1 100 42 1 200 48 1 400 54 1 500 60 1 600 64 1 800 72 2 000 80 2 200 88 ................
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