"wc, PSIG, BTUH, feet, inches
kPa, kW, meters, mm
Nominal Pipe Size
NPS
(inches)
Diameter Nominal
DN
(mm)
1/8
6
1/4
8
3/8
10
1/2
15
3/4
20
1
25
1 1/4
32
1 1/2
40
2
50
2 1/2
65
