(PTFE) or graphite slides shall be provided, where required, to
allow longitudinal pipe movement. Lateral restraints shall be
provided as required. Slide materials shall be suitable for the
system operating temperatures, atmospheric conditions, and bearing
loads encountered.
(1) Where steel slides do not require provisions for restraint of
lateral movement, an alternate guide method may be used. On
piping 100 mm 4 inches and larger, a Type 39 saddle may be welded
to the pipe and freely rest on a steel plate. On piping under 100
mm 4 inches, a Type 40 protection shield may be attached to the
pipe or insulation and freely rest on a steel slide plate.
(2) Where there are high system temperatures and welding to
piping is not desirable, then the Type 35 guide shall include a
pipe cradle, welded to the guide structure and strapped securely
to the pipe. The pipe shall be separated from the slide material
by at least 100 mm 4 inches, or by an amount adequate for the
insulation, whichever is greater.
k.
Pipe hangers on horizontal insulated pipes, except for Type 3,
shall be the size of the outside diameter of the insulation.
l.
Piping in trenches shall be supported as indicated.
2.27
INSULATION
Shop and field applied insulation shall be as specified in Section 15080A
THERMAL INSULATION FOR MECHANICAL SYSTEMS.
2.28
TOOLS
Special tools only shall be furnished and shall include all uncommon tools
necessary for the operation and maintenance of boilers, stokers, pumps,
fans, controls, meters, special piping systems, and other equipment. Small
hand tools shall be furnished with a suitable cabinet, mounted where
directed. The following tools shall also be furnished.
2.28.1
Tube Brush
**************************************************************************
NOTE: Applies to firetube boilers.
**************************************************************************
Tube brush, with steel bristles and jointed handle of sufficient length to
clean full length of firetubes, shall be provided.
2.28.2
Smoke Pipe Cleaner
Cleaner shall be provided to clean the breeching and smoke connections.
Cleaner shall have jointed handle of sufficient length to clean breeching
and smoke connections without dismantling.
2.28.3
Firing Tools
Firing tools including hoe, poker, and slice bar shall be provided for each
boiler.
SECTION 15559A
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