220529 - pipe hangers supports for plumbing piping.doc
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- Construct Addition/Fire Suppression B104
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- FA6656-09-R-0005
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Specification Section 22 05 29 Pipe Hangers Supports for Plumbing Piping
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SECTION 22 05 29
PIPE HANGERS AND SUPPORTS FOR PLUMBING PIPING
PART 1 - GENERAL
1.01 Related Documents:
A.
Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.
1.02
SECTION INCLUDES:
A.
Pipe hangers and supports.
1.03
RELATED SECTIONS:
A.
Section 22 01 00 - General Plumbing Requirements
F.
Section 22 07 19 - Plumbing Piping Insulation
G.
Section 22 10 00 - Plumbing Piping
1.04
SUBMITTALS:
A.
Shop drawings and product data in accordance with Section 22 01 00.
PART 2 - PRODUCTS
2.01
ACCEPTABLE MANUFACTURERS:
A.
Grinnell
B.
Michigan
C.
Unistrut
2.02
PIPE HANGERS AND SUPPORTS:
A.
All hangers and supports shall be galvanized or cadmium plated except those indicated as copper plated.
B.
Hangers for Pipe Sizes 1/2 to 1-1/2 Inch: Malleable iron, adjustable swivel split ring.
C.
Hangers for Pipe Sizes 2 to 4 Inches and Cold Pipe Sizes 6 Inches and Over: Carbon steel, adjustable, clevis.
D.
Multiple or Trapeze Hangers: Steel channels with welded spacers and hanger rods; cast iron roll and stand for hot pipe sizes 6 inches and over.
E.
Wall Support for Pipe Sizes to 3 Inches: Cast iron hook.
F.
Vertical Support: Steel riser clamp.
G.
Floor Support for Pipe Sizes to 4 Inches and All Cold Pipe Sizes: Cast iron adjustable pipe saddle, locknut nipple, floor flange, and concrete pier or steel support.
H.
Copper Pipe support: Carbon steel ring, adjustable, copper plated.
I.
Shield for Insulated Piping 2 Inches and Smaller: Eighteen (18) gauge galvanized steel shield over insulation in 180 degrees segments, minimum 12 inches long at pipe support.
J.
Shield for Insulated Piping 2-1/2 Inches and Larger (Except Cold Water Piping): Pipe covering protective saddles.
K.
Shields for Insulated Cold Water Piping 2-1/2 Inches and Larger: Hard block non-conducting saddles in 90 degrees segments, 12 inch minimum length, block thickness same as insulation thickness.
2.03
HANGER RODS:
A.
Steel Hanger Rods: Threaded both ends, threaded one end, or continuous threaded. Rods shall be galvanized.
2.04
INSERTS:
A.
Malleable iron case over galvanized steel shell and expander plug for threaded connection with lateral adjustment, top slot for reinforcing rods, lugs for attaching to forms: size inserts to suit threaded hanger rods.
PART 3 - EXECUTION
3.01
INSERTS:
A.
Provide inserts for placement in concrete formwork by others.
B.
Provide inserts for suspending hangers from reinforced concrete slabs and sides of reinforced concrete beams.
C.
Provide hooked rod to concrete reinforcement section for inserts carrying pipe over 4 inches.
D.
Where concrete slabs form finished ceilings, provide inserts to be flush with slab surface.
3.02
PIPE HANGERS AND SUPPORTS:
A.
Support horizontal piping as follows:
| PIPE SIZE |
| ROD DIAMETER |
| STEEL PIPE SPACING |
| COPPER PIPE SPACING |
| PVC |
PIPE SPACING
| Through 1" |
| 3/8" |
| 8' |
| 6' |
| 5' |
| 1-1/4" |
| 3/8" |
| 10' |
| 10' |
| 5' |
| 1-1/2" |
| 3/8" |
| 10' |
| 10' |
| 5' |
| 2" |
| 3/8" |
| 12' |
| 10' |
| 5' |
| 2-1/2" |
| 1/2" |
| 12' |
| 12' |
| 5' |
| 3" |
| 1/2" |
| 12' |
| 12' |
| 5' |
| 4" |
| 5/8" |
| 16' |
| 12' |
| 5' |
C.I. bell and spigot or no-hub - 3/4" diameter rod at maximum 5' spacing and at all joints.
B.
Install hangers to provide minimum 1/2" space between finished covering and adjacent work.
C.
Place a hanger within 12" of each horizontal elbow.
D.
Use hangers with 1-1/2" minimum vertical adjustment.
E.
Support vertical piping at every floor. Support vertical cast iron pipe at each floor at hub.
F.
Where several pipes can be installed in parallel and at same elevation, provide multiple or trapeze hangers.
G.
Support riser piping independently of connected horizontal piping.
END OF SECTION 22 05 29
22 05 29-4
PIPE HANGERS AND SUPPORTS FOR PLUMBING PIPING
12910-330
Revised 3/2/09
12910-330
PIPE HANGERS AND SUPPORTS FOR PLUMBING PIPING
22 05 29-3
Revised 3/2/09
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