Suggested Activities
1. Working as a group, make a set of sample
water supply pipe assemblies with each of
the different types of pipe and fittings
commonly used in your area. Each of these
completed exercises should be capped and
fitted with adapters so they can be tested
using standard procedures.
2. In a model framed structure, while working
in small groups, install the water supply
piping for a kitchen, utility room, or bath-
room. The completed piping system should
be tested using the testing procedure(s)
practiced in your community.
3. Calculate the thermal expansion or contrac-
tion of one or more of the piping installa-
tions listed in the next column and make a
dimensioned sketch of an expansion loop
for the installation.
A. 50′ straight run of 1⁄2″ CPVC pipe
installed at 45°F and expected to carry
hot water at a temperature of 155°F.
B. 75′ straight run of 3⁄4″ PVC pipe installed
at 50°F and exposed to 120°F in a
building that is not climate controlled.
C. 30′ straight run of 3⁄4″ PVC pipe installed
at 105°F and exposed to 35°F before the
building is completed.
D. 40′ straight run of 1⁄2″ copper pipe
installed at 10°F and expected to carry
hot water at 145°F.
E. 50′ straight run of 3⁄4″ copper cold water
pipe installed at 20°F and in a building
where the temperature is not expected
to exceed 80°F.
Chapter 20 Installing Water Supply Piping
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