How to Guide

100
Plastics Technical Manual
Total Length: End
of Pipe to Vanish
Point In Inches
(C)
Length of
Effective Thread
In Inches
(B)
Normal
Engagement By
Hand In Inches
(A)
Number
of Threads
Per Inch
Outside
Diameter In
Inches
(D)
Nominal
Size In
Inches
* EXTERNAL THREADPIPE
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1
⁄4 .540 18 .228 .4018 .5946 .500 9.00
3
⁄8 .675 18 .240 .4078 .6006 .500 9.00
1
⁄2 .840 14 .320 .5337 .7815 .640 8.96
3
⁄4 1.050 14 .339 .5457 .7935 .650 9.10
1 1.315 11
1
⁄2 .400 .6828 .9845 .810 9.32
1
1
⁄4 1.660 11
1
⁄2 .420 .7068 1.0085 .850 9.78
1
1
⁄2 1.900 11
1
⁄2 .420 .7235 1.0252 .850 9.78
2 2.375 11
1
⁄2 .436 .7565 1.0582 .900 10.35
2
1
⁄2 2.875 8 .682 1.1375 1.5712 1.210 9.68
3 3.500 8 .766 1.2000 1.6337 1.300 10.40
4 4.500 8 .844 1.3000 1.7337 1.380 11.04
6 6.625 8 .958 1.5125 1.9462 1.600 12.80
8 8.625 8 1.063 1.7125 2.1462 1.780 14.24
Taper Thread Dimensions
INSTALLATION PROCEDURES
Important Information for Fittings with Plastic or Metal Nuts:
WARNING! To reduce the risk of death or serious injury,
read and follow important safety, installation and application
information at www.charlottepipe.com
For additional safety, installation and application information
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24 hours a day by calling our fax-on-demand number at
800-745-9382 or by visiting our website at
www.charlottepipe.com.
Failure to follow safety and installation instructions may
result in death, serious injury or property damage.
Pipe or fittings may be damaged by contact with
products containing incompatible chemicals, resulting
in property damage.
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Exceeding recommended torque for threaded
connections may result in component damage, system
failure, and property damage.
Never use thread sealant when installing a P-Trap or a
Trap adapter with a plastic or metallic nut. Use of thread
sealants could cause seal separation or cause damage to
the fitting through over-tightening.
Always hand-tighten threaded connections, plus
approximately two turns. Plastic or metal nuts should be
tightened with a strap wrench only. Never use common
wrenches or tools designed for metallic pipe systems.
P-Traps and Trap Adapters
Number of
Threads per Inch
Internally
(E)
Overall Thread
Internal Length
In Inches
(D)
* INTERNAL THREAD