(3) Insulated pipes: Except for type 3, pipe hangers on
horizontal insulated pipe shall be the size of the outside
diameter of the insulation.
3.1.3.3
Piping in Trenches
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NOTE: Detail pipe in trenches on the drawings.
Show exact locations of pipe supports. Include
individual hanger identification. Provide schedule
of data to include, but not be limited to
identification number, detail references, load, and
movement.
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Piping shall be supported as indicated.
3.1.4
Pipe Anchors
Anchors shall be provided wherever necessary or indicated to localize
expansion or 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 in
places where they will injure the construction during installation, or by
the weight of expansion of the pipeline. Detailed drawings of pipe anchors
shall be submitted for approval before installation.
3.1.5
Pipe Sleeves
Pipe passing through concrete or masonry walls or concrete floors or roofs
shall be provided with pipe sleeves fitted into place at the time of
construction. Sleeves shall not be installed in structural members except
where indicated or approved. Rectangular and square openings shall be as
indicated. Each sleeve shall extend through its respective wall, floor, or
roof, and shall be cut flush with each surface. Unless otherwise
indicated, sleeves shall be of a size that will provide a minimum of 6.35
mm 1/4 inch all around clearance between bare pipe or insulation jacket and
sleeves. Sleeves in bearing walls, waterproofing membrane floors, and wet
areas shall be steel pipe or cast iron pipe. Sleeves in non-bearing walls,
floors, or ceilings may be steel pipe, cast iron pipe, or galvanized sheet
metal with lock type longitudinal seam and of the metal thickness
indicated. Except in pipe chases or interior walls, the annular space
between pipe and sleeve or between jacket over insulation and sleeve in
non-fire rated walls and floors shall be sealed as indicated and specified
in Section 07920 JOINT SEALANTS and in fire rated walls and floors shall be
sealed as indicated and specified in Section 07840 FIRESTOPPING. Pipes
passing through wall waterproofing membrane shall be sleeved as described
above. In addition, a waterproofing clamping flange shall be installed as
indicated.
3.1.5.1
Pipes Passing Through Roof or Floor Waterproofing Membrane
Pipes shall be installed through a 1.8 kg 4 pound lead flashing sleeve, a
0.450 kg 16 ounce copper sleeve, or a 0.8 mm 0.032 inch thick aluminum
sleeve, each having an integral skirt or flange. Flashing sleeve shall be
suitably formed, and the skirt or flange shall extend not less than 200 mm
SECTION 15561A
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