I.P.S. Pressure/Irrigation (P.I.P) Installation Guide - JM Eagle

Caution: If joint is over-assembled causing the spigot to jam into the neck
of the bell, flexibility of the joint is lost. Uneven settlement of the trench or
additional loading may cause this type of joint assembly to leak or crack.
Do not assemble beyond the reference mark.
Figure 10
If undue resistance to insertion of the beveled end is encountered or the
reference mark does not reach the flush position, disassemble the joint and
check the position of the gasket. If it is twisted or pushed out of its seat, do
not attempt to realign gasket, replace with another piece of pipe. Be sure
both lengths are in proper alignment.
NOTICE: Should a spigot or bell end become deformed under load at higher
temperatures, it will be necessary to exercise more care in assembling the
joint in order to prevent fish-mouthing of the gasket.
6. No deflection at joint is allowed on 12 inches and smaller pipe. Pipe
curvature should be accomplished by bending the pipe rather than
deflecting the joints as noted in Section 2.2.
NOTICE: If a pry-bar or backhoe is used for any assembly, a wood plank
should be placed between the pipe and the machine to prevent damage. In
addition, the force applied must be steady and constant. Do not ram or hit
the pipe. For all pipe, a come-a-long jack is recommended over a backhoe.
The method of attachment to the pipe must not abrade or damage the pipe
in any way. Steps must be taken during installation using these methods to
maintain correct alignment of the pipe. In addition, a helper should be present
in all cases to assist the operator in knowing when the reference mark is
reached properly.
22 IRRIGATION & I.P.S. PRESSURE INSTALLATION GUIDE