HomeMy WebLinkAbout200140 SUPPORTS AND ANCHORSTHE KENT
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SECTION 20 01 40 - SUPPORTS AND ANCHORS
PART 1 - GENERAL
1.01 RELATED SECTIONS:
A. Drawings, general provisions of the Contract, including General and Supplementary
Conditions, and Division-1 Specification Sections and Division 21, 22, and 23 Specification
Sections, apply to work of this Section.
B. This section applies to Division 21, 22 and 23 Specification Sections.
1.02 DESCRIPTION OF WORK:
A. Extent of supports and anchors required by this section is indicated on drawings and/or
specified in other Division 21, 22 and 23 sections.
B. Types of supports and anchors specified in this section include the following:
1. Horizontal-Piping Hangers and Supports
2. Vertical-Piping Clamps
3. Hanger-Rod Attachments
4. Building Attachments
5. Saddles and Shields
6. Miscellaneous Materials
7. Roof Equipment Supports
8. Anchors
C. Supports and anchors furnished as part of factory-fabricated equipment are specified as part of
equipment assembly in Division 21, 22 and 23 sections.
1.03 QUALITY ASSURANCE:
A. Manufacturer's Qualifications: Firms regularly engaged in manufacture of supports and
anchors, of types and sizes required, whose products have been in satisfactory use in similar
service for not less than 5 years.
B. Codes and Standards:
1. Code Compliance: Comply with applicable plumbing codes pertaining to product
materials and installation of supports and anchors.
2. UL and FM Compliance: Provide products which are UL-listed and FM approved.
3. MSS Standard Compliance:
a. Provide pipe hangers and supports of which materials, design, and
manufacture comply with MSS SP-58.
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b. Select and apply pipe hangers and supports, complying with MSS SP-69.
c. Fabricate and install pipe hangers and supports, complying with MSS SP-89.
d. Terminology used in this section is defined in MSS SP-90.
1.04 SUBMITTALS:
A. Product Data: Submit manufacturer's technical product data, including installation instructions
for each type of support and anchor. Submit pipe hanger and support schedule showing
Manufacturer's figure number, size, location, and features for each required pipe hanger and
support.
B. Shop Drawings: Submit manufacturer's assembly-type shop drawings for each type of support
and anchor, indicating dimensions, weights, required clearances, and methods of assembly of
components.
PART 2 - PRODUCTS
2.01 ACCEPTABLE MANUFACTURERS:
A. Manufacturers: Subject to compliance with requirements, provide hangers and supports of one
of the following:
1. Anvil International Inc. (formerly ITT Grinnell)
2. Carpenter and Patterson, Inc.
3. Cooper B-Line, Inc.
4. Elcen Metal Products Co.
5. Fee & Mason Mfg. Co.
6. Michigan Hanger
7. NIBCO/TOLCO
8. Persing & Co.
9. PHD Manufacturing
10. Powerstrut
11. Thomas & Betts Superstrut
2.02 HORIZONTAL-PIPING HANGERS AND SUPPORTS:
A. General: Except as otherwise indicated, provide factory fabricated horizontal-piping hangers
and supports complying with MSS SP-58, of one of the following MSS types listed, selected by
Installer to suit horizontal-piping systems, in accordance with MSS SP-69 and manufacturer's
published product information. Use only one type by one manufacturer for each piping service.
Select size of hangers and supports to exactly fit pipe size for bare piping, and to exactly fit
around piping insulation with saddle or shield for insulated piping. Provide copper-plated
hangers and supports for copper-piping systems.
B. Adjustable Steel Clevis Hangers: MSS Type 1.
C. Pipe Hangers: MSS Type 5.
D. Adjustable Steel Band Hangers: MSS Type 7.
E. Extension Split Pipe Clamps: MSS Type 12.
F. U-Bolts: MSS Type 24.
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G. Pipe Stanchion Saddles: MSS Type 37, including steel pipe base support and cast-iron floor
flange.
H. Adjustable Pipe Saddle Supports: MSS Type 38, including steel pipe base support and
cast-iron floor flange.
2.03 VERTICAL-PIPING CLAMPS:
A. General: Except as otherwise indicated, provide factory fabricated vertical-piping clamps
complying with MSS SP-58, of one of the following types listed, selected by Installer to suit
vertical piping systems, in accordance with MSS SP-69 and manufacturer's published product
information. Select size of vertical piping clamps to exactly fit pipe size of bare pipe. Provide
copper- plated clamps for copper-piping systems.
B. Two-Bolt Riser Clamps: MSS Type 8.
2.04 HANGER-ROD ATTACHMENTS:
A. General: Except as otherwise indicated, provide factory fabricated hanger-rod attachments
complying with MSS SP-58, of one of the following MSS types listed, selected by Installer to
suit horizontal-piping hangers and building attachments, in accordance with MSS SP-69 and
manufacturer's published product information. Use only one type by one manufacturer for
each piping service. Select size of hanger-rod attachments to suit hanger rods. Provide
copper-plated hanger-rod attachments for copper-piping systems.
B. Steel Turnbuckles: MSS Type 13.
C. Malleable Iron Sockets: MSS Type 16.
2.05 BUILDING ATTACHMENTS:
A. General: Except as otherwise indicated, provide factory fabricated building attachments
complying with MSS SP-58, of one of the following MSS types listed, selected by Installer to
suit building substrate conditions, in accordance with MSS SP-69 and manufacturer's
published product information. Select size of building attachments to suit hanger rods.
Provide copper-plated building attachments for copper-piping systems.
B. Concrete Inserts: MSS Type 18.
C. Side Beam or Channel Clamps: MSS Type 20.
D. Center Beam Clamps: MSS Type 21.
E. Top Beam Clamps: MSS Type 25.
F. Side Beam Clamps: MSS Type 27.
G. Steel Brackets: One of the following for indicated loading
1. Light Duty: MSS Type 31.
2. Medium Duty: MSS Type 32.
3. Heavy Duty: MSS Type 33.
H. Side Beam Brackets: MSS Type 34.
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2.06 SADDLES AND SHIELDS:
A. General: Except as otherwise indicated, provide saddles or shields under piping hangers and
supports, factory-fabricated, for all insulated piping. Size saddles and shields for exact fit to
mate with pipe insulation.
B. Protection Saddles: MSS Type 39 protection saddles if insulation without vapor barrier is
indicated. Fill interior voids with segments of insulation matching adjoining insulation.
C. Protection Shields: MSS Type 40 insulation protection shields on cold piping with vapor
barrier. Shields shall span an arc of 180 degrees.
1. Shield Dimensions for pipe: Not less than the following:
a. 1/4” to 3-1/2” 12 inches long and 0.048 inch thick
b. 4” 12 inches long and 0.06 inch thick
c. 5” and 6” 18 inches long and 0.06 inch thick
2. Pipes 3” and larger include hardwood or 20# density fiberglass insulation inserts of
length at least as long as protective shield. Reference detail on the drawings.
D. Thermal Hanger Shields: Constructed of 360 insert of high density, 100 psi, water-proofed
calcium silicate, encased in 360 sheet metal shield. Provide assembly of same thickness as
adjoining insulation.
1. Manufacturers: Subject to compliance with requirements, provide thermal hanger
shields of one of the following:
a. Value Engineered Products, Inc.
b. Pipe Shields, Inc.
2.07 MISCELLANEOUS MATERIALS:
A. Metal Framing: Provide products complying with NEMA STD ML 1.
B. Steel Plates, Shapes and Bars: Provide products complying with ASTM A 36.
C. Heavy-Duty Steel Trapezes: Fabricate from steel shapes selected for loads required; weld
steel in accordance with AWS standards.
2.08 ROOF EQUIPMENT SUPPORTS:
A. General: Construct roof equipment supports using minimum 18-gage galvanized steel with
fully mitered and welded corners, 3" cant, internal bulkhead reinforcing, integral base plates,
pressure treated wood nailer, and 18-gage galvanized steel counterflashing.
B. Configuration: Construct to sizes as indicated, compensate for slope in roof so top of support
is dead level.
C. Manufacturers: Subject to compliance with requirements, provide roof equipment supports of
one of the following:
1. Custom Curb, Inc.
2. Pate Co.
3. Thycurb Div.; Thybar Corp.
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PART 3 - EXECUTION
3.01 INSPECTION:
A. Examine areas and conditions under which supports and anchors are to be installed. Do not
proceed with work until unsatisfactory conditions have been corrected in manner acceptable to
Installer.
3.02 PREPARATION:
A. Proceed with installation of hangers, supports and anchors only after required building
structural work has been completed in areas where the work is to be installed. Correct
inadequacies including (but not limited to) proper placement of inserts, anchors and other
building structural attachments.
B. Prior to installation of hangers, supports, anchors and associated work, Installer shall meet at
project site with Contractor, installer of each component of associated work, inspection and
testing agency representatives (if any), installers of other work requiring coordination with work
of this section and Architect/Engineer for purpose of reviewing material selections and
procedures to be followed in performing the work in compliance with requirements specified.
3.03 INSTALLATION OF BUILDING ATTACHMENTS:
A. Install building attachments at required locations within concrete or on structural steel for
proper piping support. Space attachments within maximum piping span length indicated in
MSS SP-69. Install additional building attachments where support is required for additional
concentrated loads, including valves, flanges, guides, strainers, expansion joints, and at
changes in direction of piping. Install concrete inserts before concrete is placed; fasten insert
securely to forms. Where concrete with compressive strength less than 2500 psi is indicated,
install reinforcing bars through openings at top of inserts.
3.04 INSTALLATION OF HANGERS AND SUPPORTS:
A. General: Install hangers, supports, clamps and attachments to support piping properly from
building structure; comply with MSS SP-69. Arrange for grouping of parallel runs of horizontal
piping to be supported together on trapeze type hangers where possible. Install supports with
maximum spacing complying with MSS SP-69. Where piping of various sizes is to be
supported together by trapeze hangers, space hangers for smallest pipe size or install
intermediate supports for smaller diameter pipe. Do not use wire or perforated metal to
support piping, and do not support piping from other piping.
B. Install hangers and supports complete with necessary inserts, bolts, rods, nuts, washers and
other accessories. Except as otherwise indicated for exposed continuous pipe runs, install
hangers and supports of same type and style as installed for adjacent similar piping.
C. Existing concrete floor slabs for piping less than 1 ½” diameter: In concrete floor slabs where
no inserts are in place, anchoring into the existing concrete shall be done with expansion screw
anchors and/or other means approved by the Engineer. At no time shall anchors be greater
than 5/8” diameter.
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D. Existing concrete floor slabs for piping 1 ½” and larger: In concrete construction where no
inserts are in place, Unistrut or equal supports shall be fastened to the slab and have a
continuous length between at least two joists, beams or columns. Unistrut shall be sized as
recommended by the manufacturer for hanging indicated diameter piping. Anchoring into
existing concrete shall be done with expansion screw anchors and/or other means approved by
the Engineer.
E. Existing concrete beams and joists: In concrete construction where no inserts are in place,
steel hanger rod clips shall be fastened to the sides of joists or beams as necessary for
hanging indicated diameter piping. Anchoring shall be done with expansion screw anchors
and/or other means as approved by the Engineer. Anchors shall be located at least 3” from the
bottom of joists and 5” from the bottom of beams. Anchors for hangers shall not be inserted in
the bottom of concrete beams or joists.
F. Support fire protection system piping independently of other piping.
G. Prevent electrolysis in support of copper tubing by use of hangers and supports which are
copper plated, or by other recognized industry methods.
H. Install hangers and supports to allow controlled movement of piping systems and to permit
freedom of movement between pipe anchors, and to facilitate action of expansion joints,
expansion loops, expansion bends and similar units.
I. Load Distribution: Install hangers and supports so that piping live and dead loading and
stresses from movement will not be transmitted to connected equipment.
J. Pipe Slopes: Install hangers and supports to provide indicated pipe slopes, and so that
maximum pipe deflections allowed by ANSI B31 Pressure Piping Codes are not exceeded.
K. Insulated Piping: Comply with the following installation requirements.
1. Clamps: Attach clamps, including spacers (if any), to piping with clamps projecting
through insulation; do not exceed pipe stresses allowed by ANSI B31.
2. Shields: Where low-compressive-strength insulation or vapor barriers are indicated on
cold or chilled water piping, install coated protective shields. For pipe 3" and over,
install wood insulation saddles.
3. Saddles: Where insulation without vapor barrier is indicated, install protection saddles.
3.05 INSTALLATION OF ANCHORS:
A. Install anchors at proper locations to prevent stresses from exceeding those permitted by ANSI
B31, and to prevent transfer of loading and stresses to connected equipment.
B. Fabricate and install anchor by welding steel shapes, plates and bars to piping and to structure.
Comply with ANSI B31 and with AWS standards.
C. Where expansion compensators are indicated, install anchors in accordance with expansion
unit manufacturer's written instructions, to limit movement of piping and forces to maximums
recommended by manufacturer for each unit.
D. Anchor Spacing: Where not otherwise indicated, install anchors at ends of principal pipe-runs,
at intermediate points in pipe runs between expansion loops and bends. Make provisions for
preset of anchors as required to accommodate both expansion and contraction of piping.
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3.06 EQUIPMENT SUPPORTS:
A. Provide concrete housekeeping bases for all floor-mounted equipment. Size bases to extend
minimum of 4" beyond equipment base in any direction; and 4" above finished floor elevation or
as otherwise noted on the Drawings. Construct of 3000-psi, 28-day compressive-strength
reinforced concrete, roughen floor slab beneath base for bond, and provide steel rod anchors
between floor and base. Locate anchor bolts using equipment manufacturer's templates.
Chamfer top and edge corners.
B. Provide structural steel stands to support equipment not floor mounted or hung from structure.
Construct of structural steel members or steel pipe and fittings. Provide factory-fabricated
tank saddles for tanks mounted on steel stands.
C. Furnish roof equipment supports to Contractor for installation as part of work of Division 7; not
work of this section.
3.07 ADJUSTING AND CLEANING:
A. Hanger Adjustment: Adjust hangers so as to distribute loads equally on attachments.
B. Support Adjustment: Provide grout under supports so as to bring piping and equipment to
proper level and elevations.
C. Cleaning: Clean factory-finished surfaces. Repair any marred or scratched surfaces with
manufacturer's touch-up paint.
END OF SECTION
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