HomeMy WebLinkAbout21 13 13 Wet-Pipe Sprinkler SystemsBEARDSLEY DESIGN ASSOCIATES
CORNELL-NCP WET-PIPE SPRINKLER SYSTEMS
STANDARD SPECIFICATIONS 21 13 13 – PAGE 1 OF 9
MARCH 29, 2013
SECTION 211313 -- WET-PIPE SPRINKLER SYSTEMS
PART 1 GENERAL
1.1 DEFINITIONS
A. Standard-Pressure Sprinkler Piping: Wet-pipe sprinkler system piping
designed to operate at working pressure of 175 psig (1200 kPa) maximum.
1.2 SYSTEM DESCRIPTIONS
A. Wet-Pipe Sprinkler System: Automatic sprinklers are attached to piping
containing water and that is connected to water supply through alarm valve.
Water discharges immediately from sprinklers when they are opened.
Sprinklers open when heat melts fusible link or destroys frangible device.
1.3 PERFORMANCE REQUIREMENTS
A. Standard-Pressure Piping System Component: Listed for 175-psig (1200-
kPa) minimum working pressure.
B. Delegated Design: Design sprinkler system(s), modifications including
comprehensive engineering analysis by a qualified licensed Fire Sprinkler
Contractor, using performance requirements and design criteria indicated.
C. Sprinkler system design shall be approved by authorities having jurisdiction.
1. Sprinkler Occupancy Hazard Classifications:
a. Telecom Equipment Rooms: Ordinary Hazard, Group 1.
b. Corridor, Lobbies, General Offices: Light Hazard.
2. Minimum Density for Automatic-Sprinkler Piping Design:
a. Ordinary-Hazard, Group 1 Occupancy: 0.15 gpm over 1500-sq. ft. or
entire area if less than 1500 sq. ft.
b. Light Hazard: 0.10 gpm over 1500 sq. ft, or entire area if less than
1500 sq. ft.
3. Maximum Protection Area per Sprinkler: Per UL listing.
4. Maximum Protection Area per Sprinkler:
a. Telecom Equipment Rooms: 130 sq. ft. (12.1 sq. m).
b. Other Areas: According to NFPA 13 recommendations unless
otherwise indicated.
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CORNELL-NCP WET-PIPE SPRINKLER SYSTEMS
STANDARD SPECIFICATIONS 21 13 13 – PAGE 2 OF 9
MARCH 29, 2013
5. Total Combined Hose-Stream Demand Requirement: According to
NFPA 13 unless otherwise indicated:
a. Light-Hazard Occupancies: 100 gpm (6.3 L/s) for 30 minutes.
b. Ordinary-Hazard Occupancies: 250 gpm (15.75 L/s) for 60 to 90
minutes.
1.4 SUBMITTALS
A. Product Data: For each type of product indicated.
1. Equipment
a. Provide manufacturer’s catalog data for each separate piece of
equipment which indicates the name of the manufacturer of each item
of equipment, with data highlighted to indicate model, size, options, etc.
proposed for installation.
B. Shop Drawings: For wet-pipe sprinkler systems. Include plans, elevations,
sections, details, and attachments to other work. Provide layout drawing of
the complete automatic sprinkler system modifications indicating relationship
of all other items including HVAC equipment, lighting fixtures, structural
members and all other significant items of all piping. Complete details and
sections as required to clearly define and clarify the design including details
of each type of riser assembly and pipe hangers.
C. Delegated-Design Submittal: For sprinkler systems indicated to comply with
performance requirements and design criteria, including analysis data signed
and sealed by the qualified professional engineer responsible for their
preparation.
D. Qualification Data: For qualified Installer.
E. Approved Sprinkler Piping Drawings: Working plans, prepared according to
NFPA 13, that have been approved by authorities having jurisdiction,
including hydraulic calculations if applicable.
F. Field Test Reports and Certificates: Indicate and interpret test results for
compliance with performance requirements and as described in NFPA 13.
Include "Contractor's Material and Test Certificate for Aboveground Piping."
G. Field quality-control reports.
H. Operation and Maintenance Data: For sprinkler specialties to include in
emergency, operation, and maintenance manuals.
1.5 QUALITY ASSURANCE
A. Installer Qualifications:
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CORNELL-NCP WET-PIPE SPRINKLER SYSTEMS
STANDARD SPECIFICATIONS 21 13 13 – PAGE 3 OF 9
MARCH 29, 2013
1. Installer's responsibilities include designing, fabricating, and installing
sprinkler system modifications and providing services needed to assume
engineering responsibility.
a. Engineering Responsibility: Preparation of working plans, calculations,
and field test reports by a qualified licensed Fire Sprinkler Contractor.
B. NFPA Standards: Sprinkler system equipment, specialties, accessories,
installation, and testing shall comply with the following:
1. NFPA 13, "Installation of Sprinkler Systems."
1.6 PROJECT CONDITIONS
A. Interruption of Existing Sprinkler Service: Do not interrupt sprinkler service to
facilities occupied by Owner or others unless permitted under the following
conditions and then only after arranging to provide temporary sprinkler
service according to requirements indicated:
1. Notify Construction Manager and/or Owner no fewer than two days in
advance of proposed interruption of sprinkler service.
2. Do not proceed with interruption of sprinkler service without Construction
Manager's written permission.
1.7 COORDINATION
A. Coordinate layout and installation of sprinklers with other construction that
penetrates ceilings, including light fixtures, HVAC equipment, and partition
assemblies.
1.8 EXTRA MATERIALS
A. Furnish extra materials that match products installed and that are packaged
with protective covering for storage and identified with labels describing
contents.
1. Spare Sprinklers: Provide to Owner the number of sprinklers required by
NFPA 13 and sprinkler wrench. Include spares of each type of sprinkler
used on Project.
PART 2 PRODUCTS
2.1 STEEL PIPE AND FITTINGS
A. Schedule 40, Black-Steel Pipe: ASTM A 53/A 53M, Type E, Grade B. Pipe
ends may be factory, shop fabrication or field formed to match joining method.
BEARDSLEY DESIGN ASSOCIATES
CORNELL-NCP WET-PIPE SPRINKLER SYSTEMS
STANDARD SPECIFICATIONS 21 13 13 – PAGE 4 OF 9
MARCH 29, 2013
B. Black-Steel Pipe Nipples: ASTM A 733, made of ASTM A 53/A 53M,
standard-weight, seamless steel pipe with threaded ends.
C. Uncoated, Steel Couplings: ASTM A 865, threaded.
D. Uncoated, Gray-Iron Threaded Fittings: ASME B16.4, Class 125, standard
pattern.
E. Malleable- or Ductile-Iron Unions: UL 860.
F. Cast-Iron Flanges: ASME 16.1, Class 125.
G. Steel Flanges and Flanged Fittings: ASME B16.5, Class 150.
H. Steel Welding Fittings: ASTM A 234/A 234M and ASME B16.9.
I. Grooved-Joint, Steel-Pipe Appurtenances:
1. Pressure Rating: 175 psig (1200 kPa) minimum.
2. Uncoated, Grooved-End Fittings for Steel Piping: ASTM A 47/A 47M,
malleable-iron casting or ASTM A 536, ductile-iron casting; with
dimensions matching steel pipe.
3. Grooved-End-Pipe Couplings for Steel Piping: AWWA C606 and UL 213,
rigid pattern, unless otherwise indicated, for steel-pipe dimensions.
Include ferrous housing sections, EPDM-rubber gasket, and bolts and
nuts.
J. For buildings with existing sprinkler systems, which use galvanized steel
piping, new piping shall be galvanized
2.2 PIPING JOINING MATERIALS
A. Pipe-Flange Gasket Materials: AWWA C110, rubber, flat face, 1/8 inch (3.2
mm) thick or ASME B16.21, nonmetallic and asbestos free.
1. Class 125, Cast-Iron Flanges and Class 150, Bronze Flat-Face Flanges:
Full-face gaskets.
B. Metal, Pipe-Flange Bolts and Nuts: ASME B18.2.1, carbon steel unless
otherwise indicated.
2.3 TRIM AND DRAIN VALVES
A. General Requirements:
1. Standard: UL's "Fire Protection Equipment Directory" listing or "Approval
Guide," published by FM Global, listing.
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CORNELL-NCP WET-PIPE SPRINKLER SYSTEMS
STANDARD SPECIFICATIONS 21 13 13 – PAGE 5 OF 9
MARCH 29, 2013
2. Pressure Rating: 175 psig (1200 kPa) minimum.
3. Types: Angle, ball, and globe
2.4 SPRINKLER SPECIALTY PIPE FITTINGS
A. Branch Outlet Fittings:
1. Standard: UL 213.
2. Pressure Rating: 175 psig (1200 kPa) minimum.
3. Body Material: Ductile-iron housing with EPDM seals and bolts and nuts.
4. Type: Mechanical-T and -cross fittings.
5. Configurations: Snap-on and strapless, ductile-iron housing with branch
outlets.
6. Size: Of dimension to fit onto sprinkler main and with outlet connections
as required to match connected branch piping.
7. Branch Outlets: Grooved, plain-end pipe, or threaded.
B. Adjustable Drop Nipples:
1. Standard: UL 1474.
2. Pressure Rating: 250 psig (1725 kPa) minimum.
3. Body Material: Steel pipe with EPDM-rubber O-ring seals.
4. Size: Same as connected piping.
5. Length: Adjustable.
6. Inlet and Outlet: Threaded.
2.5 SPRINKLERS
A. General Requirements:
1. Standard: UL's "Fire Protection Equipment Directory" listing or "Approval
Guide," published by FM Global, listing.
2. Pressure Rating for Automatic Sprinklers: 175 psig (1200 kPa) minimum.
B. Automatic Sprinklers with Heat-Responsive Element:
BEARDSLEY DESIGN ASSOCIATES
CORNELL-NCP WET-PIPE SPRINKLER SYSTEMS
STANDARD SPECIFICATIONS 21 13 13 – PAGE 6 OF 9
MARCH 29, 2013
1. Nonresidential Applications: UL 199.
2. Characteristics: Nominal 1/2-inch (12.7-mm) orifice with Discharge
Coefficient K of 5.6, and for "Ordinary" temperature classification rating
unless otherwise indicated or required by application.
3. For buildings with existing sprinkler systems, provide the same make and
model sprinkler heads that are used in the building.
C. Sprinkler Finishes:
1. Chrome plated.
2. Bronze.
3. Factory painted finish where required to match existing.
D. Sprinkler Escutcheons: Materials, types, and finishes for the following
sprinkler mounting applications. Escutcheons for concealed, flush, and semi-
recessed-type sprinklers are specified with sprinklers.
1. Ceiling Mounting: Chrome-plated steel, one piece, flat or Chrome-plated
steel, two piece, with 1-inch (25-mm) vertical adjustment or Plastic, white
finish, one piece, flat.
2. Sidewall Mounting: Chrome-plated steel or Plastic, white finish, either
one or two piece.
E. Sprinkler Guards:
1. Standard: UL 199.
2. Type: Wire cage with fastening device for attaching to sprinkler.
2.6 DRY SPRINKLER ASSEMBLY
A. Dry sprinkler assembly shall be of the sidewall type as indicated. Assembly
shall include an integral escutcheon. Maximum length shall not exceed
maximum indicated in UL Fire Prot Dir. Sprinklers shall have a polished
chrome finish.
2.7 SLEEVES
A. Cast-Iron Wall Pipe Sleeves: Cast of fabricated of cast iron and equivalent to
ductile-iron pressure pipe, with plain ends and integral waterstop unless
otherwise indicated.
B. Galvanized –Steel-Sheet Sleeves: 0.0239-inch (0.6 mm) minimum thickness,
round tube closed with welded longitudinal joint.
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CORNELL-NCP WET-PIPE SPRINKLER SYSTEMS
STANDARD SPECIFICATIONS 21 13 13 – PAGE 7 OF 9
MARCH 29, 2013
2.8 GROUT
A. Standard: ASTM C 1107, Grade B, posthardening and volume adjusting, dry,
hydraulic-cement grout.
B. Characteristics: Nonshrink, and recommended for interior and exterior
applications.
C. Design Mix: 5000 psi (34-MPa), 28-day compressive strength.
D. Packaging: Premixed and factor packaged.
PART 3 EXECUTION
3.1 PIPING INSTALLATION
A. Locations and Arrangements: Drawing plans, schematics, and diagrams
indicate general location and arrangement of piping. Install piping as
indicated, as far as practical.
1. Deviations from approved working plans for piping require written
approval from authorities having jurisdiction. File written approval with
Architect before deviating from approved working plans.
B. Piping Standard: Comply with requirements for installation of sprinkler piping
in NFPA 13.
C. Use listed fittings to make changes in direction, branch takeoffs from mains,
and reductions in pipe sizes.
D. Install unions adjacent to each valve in pipes NPS 2 (DN 50) and smaller.
E. Install hangers and supports for sprinkler system piping according to
NFPA 13. Comply with requirements for hanger materials in NFPA 13.
F. Install sleeves for piping penetrations of walls and ceilings.
G. Install escutcheons for piping penetrations of walls and ceilings.
3.2 JOINT CONSTRUCTION
A. Install couplings, unions, nipples, and transition and special fittings that have
finish and pressure ratings same as or higher than system's pressure rating
for aboveground applications unless otherwise indicated.
B. Ream ends of pipes and remove burrs. Bevel plain ends of steel pipe.
C. Remove scale, slag, dirt, and debris from inside and outside of pipes and
fittings before assembly.
BEARDSLEY DESIGN ASSOCIATES
CORNELL-NCP WET-PIPE SPRINKLER SYSTEMS
STANDARD SPECIFICATIONS 21 13 13 – PAGE 8 OF 9
MARCH 29, 2013
D. Threaded Joints: Thread pipe with tapered pipe threads according to
ASME B1.20.1. Cut threads full and clean using sharp dies. Ream threaded
pipe ends to remove burrs and restore full ID. Join pipe fittings and valves as
follows:
1. Apply appropriate tape or thread compound to external pipe threads.
2. Damaged Threads: Do not use pipe or pipe fittings with threads that are
corroded or damaged.
E. Steel-Piping, Cut-Grooved Joints: Cut square-edge groove in end of pipe
according to AWWA C606. Assemble coupling with housing, gasket,
lubricant, and bolts. Join steel pipe and grooved-end fittings according to
AWWA C606 for steel-pipe joints.
F. Steel-Piping, Roll-Grooved Joints: Roll rounded-edge groove in end of pipe
according to AWWA C606. Assemble coupling with housing, gasket,
lubricant, and bolts. Join steel pipe and grooved-end fittings according to
AWWA C606 for steel-pipe grooved joints.
3.3 VALVE AND SPECIALTIES INSTALLATION
A. Install drain valves according to NFPA 13 and authorities having jurisdiction.
3.4 SPRINKLER INSTALLATION
A. Install sprinklers in suspended ceilings in center of narrow dimension of
acoustical ceiling panels.
3.5 FIELD QUALITY CONTROL
A. Perform tests and inspections.
B. Tests and Inspections:
1. Leak Test: After installation, charge systems and test for leaks. Repair
leaks and retest until no leaks exist.
2. Test and adjust controls and safeties. Replace damaged and
malfunctioning controls and equipment.
C. Sprinkler piping system will be considered defective if it does not pass tests
and inspections.
D. Prepare test and inspection reports.
3.6 CLEANING
A. Clean dirt and debris from sprinklers.
BEARDSLEY DESIGN ASSOCIATES
CORNELL-NCP WET-PIPE SPRINKLER SYSTEMS
STANDARD SPECIFICATIONS 21 13 13 – PAGE 9 OF 9
MARCH 29, 2013
B. Remove and replace sprinklers with paint other than factory finish.
END OF SECTION 211313