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Figure 3-42.—Methods of measuring pipe and tubing. | Up
Utilitiesman Volume 01 - Manual for electric, plumbing, water and other utilities | Next
Figure 3-45.—Presto-lite heating unit. |
Figure 3-44.—Typical copper fittings.
“Tinning” is the process of applying a small amount of
solder to the end of the copper before it is inserted into
the sweat fitting.
generally use methylacetylene propadiene (MAPP)
cutting/welding equipment or a Presto-lite heating
unit.
In soft soldering, heat is applied directly to the
metal with a flame. Various types of heat-generating
equipment are available. In your work, however, you
The Presto-lite torch is ideal for SOFT SOLDER-
ING because it delivers a small controllable flame. The
Presto-lite unit consists of a small MAPP-gas cylinder,
3-33
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