NIBCO INC. WORLD HEADQUARTERS • 1516 MIDDLEBURY ST. • ELKHART, IN 46516-4740 • USA • PH: 1.800.234.0227
TECH SERVICES PH: 1.888.446.4226 • FAX: 1.888.336.4226 • INTERNATIONAL OFFICE PH: +1.574.295.3327 • FAX: +1.574.295.3455
www.nibco.com
16
www.nibco.com
AHEAD OF THE FLOW
®
Technical Data
PRESSURE DROP AT AMBIENT TEMPERATURE (PSI / FT)
GPM 3/8” 1/2” 5/8” 3/4” 1” 11/4”
1 0.071 0.016 0.006
2 0.254 0.058 0.021
3 0.538 0.122 0.045
4 0.207 0.076
5 0.313 0.115 0.054
6 0.439 0.161 0.076
7 0.584 0.214 0.101
8 0.224 0.130
9 0.340 0.161 0.051
10 0.196 0.062 0.023
12.5 0.274 0.094 0.035
15 0.414 0.132 0.049
20 0.224 0.084
25 0.339 0.127
30 0.178
40 0.304
50 0.459
NIBCO
®
PEX PIPE DIMENSIONS
Nominal ID OD Wall Thickness Average ID
1/4” 0.275 0.062 0.225
3/8” 0.500 0.070 0.350
1/2” 0.625 0.070 0.475
5/8” 0.750 0.083 0.574
3/4” 0.875 0.097 0.681
1” 1.125 0.125 0.862
1-1/4” 1.275 0.153 1.054
Water Velocity too high
Water Velocity too low
NOTE: Pressure Drop x 2.307 = Feet of Head
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