if any motion of the piping should occur along the axis
handtight when the piping system is hot, indicating the
sway brace is in the desired neutral position.
of the sway brace. Figure 15-35 indicates some
applications and examples of braces. As shown on the
lower sketch, some old style sway braces are provided
SHIPBOARD PIPING SYSTEMS
with tension test collars used to determine if the spring
As a Hull Maintenance Technician, you will be
plates are against the end plates (neutral position) and
chiefly concerned with the maintenance and repair of
whether there is clearance between the rod coupling and
the freshwater system, firemain system, flushing
the spring plate. The tension test collar must be
system, and low-pressure air piping. Therefore, you
Figure 15-35.--Sway braces (single spring design).