Buying Guide

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: [phone] • INTERNATIONAL OFFICE PH: +1.574.295.3327 • FAX: [phone]
www.nibco.com
70
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AHEAD OF THE FLOW
®
Revised 4/26/2019
N.R. - Not Recommended.
Operating FACTORS
Temperature, °F PVC CPVC-CTS
70 1.00 1.00
80 0.90 0.96
90 0.75 0.92
100 0.62 0.85
110 0.50 0.77
120 0.40 0.70
130 0.30 0.55
140 0.22 0.50
150 N.R. 0.47
160 N.R. 0.40
170 N.R. 0.32
180 N.R. 0.25
200 N.R. 0.18
210 N.R. 0.15
Operating Maximum Non-Shock Operating
Temperature, °F Pressure, psi
PVC CPVC
100 150 150
110 135 140
120 110 130
130 75 120
140 50 110
150 N.R. 100
160 N.R. 90
170 N.R. 80
180 N.R. 70
190 N.R. 60
200 N.R. 50
Pressure Ratings (Continued)
Valves, Flanges, and Unions
The maximum pressure rating for NIBCO valves, flanges, and
unions, regardless of size, is 150 psi at 73°F. As with all other
thermoplastic piping components, the maximum non-shock
operating pressure is related to temperature. Above 100°F
refer to the chart below.
Temperature Correction Factors
N.R. - Not Recommended
Fittings Temperature Correction Factors