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
87
www.nibco.com
AHEAD OF THE FLOW
®
Revised 4/26/2019
*For a well-lubricated bolt with flat washers under bolt head and nut.
The following tightening pattern is suggested for the
flange bolts:
5. If the flange is mated to a rigid and stationary flanged
object, or a metal flange, particularly in a buried situa-
tion where settling could occur with the plastic pipe,
the plastic flange must be supported to eliminate
potential stressing.
Flanged Joints (continued)
Flange Size Recommended Torque*
1/2 - 1
1
/2 10- 15 ft. lbs.
2 - 4 20- 30 ft. lbs.
6 - 8 33- 50 ft. lbs.
10 53- 75 ft. lbs.
12 80-110 ft. lbs.