Page 269 - Facility Piping Systems Handbook for Industrial, Commercial, and Healthcare Facilities
P. 269
HEAT TRANSFER, INSULATION, AND FREEZE PROTECTION
HEAT TRANSFER, INSULATION, AND FREEZE PROTECTION 5.53
FIGURE 5.23 Typical installation of steam tracing lines for horizontal piping.
(a) Single and multiple tracing; (b) multiple tracing.
FIGURE 5.24 Typical installation of steam tracing lines for vertical piping.
The purpose of the joints at these points is to allow replacement of the pipe in the future and
to allow for expansion. Often, a union is installed to allow for changes, testing, and blow-
out, eliminating the need to make up another fitting whenever these actions are required.
Valves include gate valves, IBBM for main supplies, and bronze for tracer lines, with
screwed or flanged ends.
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