How to Guide

104
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
Nominal
Size In
Inches
* EXTERNAL THREADPIPE
*Per ANSI/ASME B1.20.1 and ASTM F 1498
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
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
please call 800-438-6091. You may also get information
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.
All pipe thread sealants must conform to the requirements
of IAPMO’s PS 36 and with the thread sealant manufacturer
to confirm that these sealants are chemically compatible
with ABS, PVC, and CPVC. Incompatible pipe thread
sealants may result in the degradation of plastic pipe or
fittings resulting in product failure and property damage.
• Verify that paints, thread sealants, lubricants, plasticized
PVC products, foam insulations, caulks, leak detectors,
insecticides, termiticides, antifreeze solutions, pipe
sleeves, firestop materials or other materials are
chemically compatible with ABS, PVC, or CPVC.
• Do not use edible oils such as Crisco
®
for lubricant.
• Confirm compatibility of pipe marking adhesive tape
with the manufacturer of the tape to ensure chemical
compatibility with CPVC pipe and fittings.
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.
Maximum wrench-tightness is two turns past finger
tight. Plastic or metal nuts should be tightened with a
strap wrench only. Never use common wrenches or tools
designed for metallic pipe systems.
Number of
Threads per Inch
Internally
(E)
Overall Thread
Internal Length
In Inches
(D)
* INTERNAL THREAD