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Figure 7-7.—Expansion loop. | Up
Utilitiesman (Advanced) - Manual for electric, plumbing, water and other utilities | Next
Types of Corrosion |
Figure 7-10.—Meter stop.
individual fixture are sized according to table 7-12
for both cold- and hot-water risers. A typical
layout for branch lines and fixture risers is shown
in figure 7-11.
For more complete information, refer to the
latest edition of the National Standard Plumbing
Code. The code will guide you in determining all
required installation considerations of facility
water supply system needs.
CORROSION PREVENTION AND
PROTECTION
As a Utilitiesman, you must consider the
effects of corrosion on the equipment that you
are installing. When planning a project, the
Figure 7-11.—Water supply branch line.
Table 7-12.—Water Pipe Size Chart for Plumbing Fixtures
PLUMBING FIXTURE
PIPE DIAMETER
(inches)
Dishwasher . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1/2 or 3/4
Water closet tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1/2
Water closet flushometer valve. . . . . . . . . . . . . . . . . . . .1
Urinal with flushometer valve. . . . . . . . . . . . . . . . . . . . . 1/2
Lavatory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1/2
Shower bath . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1/2
Kitchen sink . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..1/2
Slop sink . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..1/2
Scullery sink . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..3/4
Laundry tray . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. .1/2
Drinking fountain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..1/2
Hot-water heater (domestic) . . . . . . . . . . . . . . . . . . . . . .3/4
Bathtub . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ..1/2
7-19
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