How to Guide

90
Plastics Technical Manual
Joininglargerdiameterpipingsystems,particularlyforpres-
sure applications, requires a higher degree of skill. Proper
installation technique is critical. Close attention to the steps
below will help professional mechanics to complete success-
ful installations.
8. Join Pipe and
Fittings
• Assemble pipe
and fittings quick-
ly while cement is
fluid. If cement
has hardened, cut
pipe, dispose of
fitting and start
over.
• Insert pipe into
the fitting hub
INSTALLATION PROCEDURES
8
giving a quarter turn as the pipe is being inserted, ensur-
ing an even distribution of the cement within the joint.
Do not quarter turn the pipe after contact with socket
bottom.
• Oncethepipecontactsthesocketbottomholdpipeand
fitting together until the pipe does not back out.
• Seetableforrecommendedsetandcuretimes.
• Remove excess
cement from the
exterior. A prop-
erly made joint
will show a con-
tinuous bead of
cement around
the perimeter. If
voids appear suf-
ficient cement
may not have
been applied and
joint failure may
6” and Larger Iron Pipe Size ABS, PVC
and CPVC Pipe and Fitting Systems
1
1. Cut Pipe
• Cut pipe square
with the axis. All
joints are sealed
at the base of the
fitting hub. An
angled cut may
result in joint
failure.
• Acceptable tools
include recipro-
cating saw, me-
chanical cut off saw with carbide tipped blade or other
appropriate tool.
• Ifanyindicationofdamageorcrackingisevidentatthe
(tube/pipe)end,cutoffatleast2”ofpipebeyondany
visible cracks.
Primers and cements are extremely flammable and may be
explosive. Do not store or use near open flame or elevated
temperatures, which may result in injury or death.
• Solvent fumes created during the joining process are
heavier than air and may be trapped in newly installed
piping systems.
• Ignition of the solvent vapors caused by spark or flame
may result in injury or death from explosion or fire.
• Read and obey all manufacturers' warnings and any
instructions pertaining to primers and cements.
• Provide adequate ventilation to reduce fire hazard and
to minimize inhalation of solvent vapors when working
with cements, primers and new piping systems.
result.
• Align all piping system components properly without
strain. Do not bend or pull pipe into position after being
solvent welded.
ASTMstandard for thepiping system asshown in the
accompanying table. All purpose cement is not recom-
mended