(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 rested 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 rested on a steel slide plate.
(2) Where there are high system temperatures and welding to
piping is not desirable, 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.
j.
Except for Type 3, pipe hangers on horizontal insulated pipe shall
be the size of the outside diameter of the insulation.
k.
Piping in trenches shall be supported as indicated.
l.
Structural steel attachments and brackets required to support
piping, headers, and equipment, but not shown, shall be provided
under this section. Material and installation shall be as
specified under Section 05120 STRUCTURAL STEEL. Pipe hanger loads
suspended from steel joist between panel points shall not exceed
22 kg 50 pounds. Loads exceeding 22 kg 50 pounds shall be
suspended from panel points.
3.2.14.3
Multiple Pipe Runs
In the support of multiple pipe runs on a common base member, a clip or
clamp shall be used where each pipe crosses the base support member.
Spacing of the base support member shall not exceed the hanger and support
spacing required for any individual pipe in the multiple pipe run. The
clips or clamps shall be rigidly attached to the common base member. A
clearance of 3 mm 1/8 inch shall be provided between the pipe insulation
and the clip or clamp for piping which may be subjected to thermal
expansion.
3.2.15
Anchors
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NOTE: Anchors will be coordinated with seismic
bracing. Seismic bracing should not interfere with
the thermal expansion design.
**************************************************************************
Anchors shall be provided where necessary to localize expansion or to
prevent undue strain on piping. Anchors shall consist of heavy steel
collars with lugs and bolts for clamping and attaching anchor braces,
unless otherwise indicated. Anchor braces shall be installed in the most
effective manner to secure the desired results, using turnbuckles where
required. Supports, anchors, or stays shall not be attached where they
will injure the structure or adjacent construction during installation or
by the weight of expansion of the pipeline.
3.2.16
Valves
Valves shall be installed where indicated, specified, and required for
SECTION 15569A
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