bafbrwhq13915.pdf

SECTION 13915 REPAIR WING HEADQUARTERS, BLDG 706

FIRE SUPPRESSION PIPING CRWU 06-2071

06/09/09 13915-1 BUCKLEY AFB

SECTION 13915 - FIRE-SUPPRESSION PIPING

PART 1 - GENERAL

1.01 SUMMARY:

A. This Section includes the following fire-suppression piping inside the building:

1. Wet-pipe sprinkler systems.

2. Preaction sprinkler systems.

B. Related Work Specified Elsewhere:

1. Alarm devices not specified in this Section: SECTION 16721 - FIRE ALARM

SYSTEMS.

1.02 REFERENCES:

A. Applicable Standards (Latest Edition):

1. Unified Facilities Criteria (UFC):

a. 3-600-01 - Fire Protection Engineering for Facilities

2. American Society for Testing and Materials (ASTM):

a. A53/A53M - Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and

Seamless.

b. A106 - Seamless Carbon Steel Pipe for High-Temperature Service.

c. A135 - Electric-Resistance-Welded Steel Pipe.

d. A234/A234M - Pipe Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High Temperature Service.

e. A733 - Welded and Seamless Carbon Steel and Austenitic Stainless Steel Pipe

Nipples.

f. A795 - Black and Hot-Dipped Zinc-Coated (Galvanized) Welded and Seamless

Steel Pipe for Fire Protection Use.

g. A865 - Threaded Couplings, Steel, Black or Zinc-Coated (Galvanized) Welded or

Seamless, for Use in Steel Pipe Joints.

3. American Society of Civil Engineers (ASCE):

a. 7 - Minimum Design Loads for Buildings and Other Structures: Section 9, Earthquake Loads.

4. American Welding Society (AWS):

a. A5.8 - Filler Metals for Brazing and Braze Welding.

5. ASME International (ASME):

a. B1.20.1 - Pipe Threads, General Purpose (Inch).

b. B16.5 - Pipe Flanges and Flanged Fittings.

c. B16.9 - Factory-Made Wrought Steel Buttwelding Fittings.

d. B16.11 - Forged Fittings, Socket Welding and Threaded.

e. B36.10M - Welded and Seamless Wrought Steel Pipe.

f. Boiler and Pressure Vessel Code: Section IX, "Welding and Brazing

Qualifications."

6. FM Global:

a. Fire Protection Approval Guide.

7. Manufacturers Standardization Society of the Valve and Fittings Industry, Inc. (MSSSP):

a. 80 - Bronze Gate, Globe, Angle, and Check Valves.

b. 110 - Ball Valves Threaded, Socket-Welding, Solder-Joint, Grooved and Flared

Ends.

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8. National Electrical Manufacturers Association (NEMA):

a. ICS 6 - Industrial Control and Systems: Enclosures.

9. National Fire Protection Association (NFPA):

a. 13 - Installation of Sprinkler Systems.

b. 24 - Installation of Private Fire Service Mains and Their Appurtenances.

c. 291 - Recommended Practice for Fire Flow Testing and Marking of Hydrants.

d. 1963 - Standard for Fire Hose Connections.

10. Underwriters Laboratories Inc. (UL):

a. 45 - Portable Electric Tools.

b. 193 -Alarm Valves for Fire-Protection Service.

c. 199 - Automatic Sprinklers for Fire-Protection Service.

d. 213 - Rubber Gasketed Fittings for Fire Protection Service.

e. 260 - Dry Pipe and Deluge Valves for Fire-Protection Service.

f. 262 - Gate Valves for Fire-Protection Service.

g. 312 - Check Valves for Fire-Protection Service.

h. 346 - Waterflow Indicators for Fire Protection Signaling Systems.

i. 393 - Indicating Pressure Gauges for Fire-Protection Service.

j. 401 - Portable Spray Hose Nozzles for Fire-Protection Service.

k. 464 - Audible Signal Appliances.

l. 486A - Wire Connectors and Soldering Lugs for Use with Copper Conductors.

m. 486B - Wire Connectors for Use with Aluminum Conductors.

n. 668 - Hose Valves for Fire Protection Service.

o. 753 - Alarm Accessories for Automatic Water-Supply Control Valves for Fire

Protection Service.

p. 789 - Indicator Posts for Fire-Protection Service.

q. 1091 - Butterfly Valves for Fire-Protection Service.

r. 1468 - Direct Acting Pressure Reducing and Pressure Restricting Valves.

s. 1474 - Adjustable Drop Nipples for Sprinkler Systems.

t. Fire Protection Equipment Directory.

1.03 DEFINITIONS:

A. CR: Chlorosulfonated polyethylene synthetic rubber.

B. High-Pressure Piping System: Fire-suppression piping system designed to operate at working pressure higher than standard 175 psig (1200 kPa).

1.04 SYSTEM DESCRIPTIONS:

A. Wet-Pipe Sprinkler System: Automatic sprinklers are attached to piping containing water and that is connected to water supply. Water discharges immediately from sprinklers when they are opened. Sprinklers open when heat melts fusible link or destroys frangible device. Hose connections are included if indicated.

1.05 SYSTEM PERFORMANCE REQUIREMENTS:

A. Design and obtain approval from authority having jurisdiction for fire protection system specified. Design system in accordance with criteria on Drawings.

1.06 SUBMITTALS:

A. General: Submit each item in this Article in accordance with SECTION 15050 - BASIC

MECHANICAL MATERIALS AND METHODS.

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B. Product Data: For the following:

1. Piping materials, including sprinkler specialty fittings.

2. Pipe hangers and supports.

3. Valves, including listed fire-protection valves, unlisted general-duty valves, and specialty valves and trim.

4. Sprinklers, escutcheons, and guards. Include sprinkler flow characteristics, mounting, finish, and other pertinent data.

5. Alarm devices, including electrical data.

C. Shop Drawings: Diagram power, signal, and control wiring.

D. Fire-hydrant flow test report.

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" and "Contractor's Material and Test Certificate for Underground Piping."

G. Welding certificates.

H. Field quality-control test reports.

I. Operation and Maintenance Data: For sprinkler specialties to include in emergency, operation, and maintenance manuals.

1.07 QUALITY ASSURANCE:

A. Installer Qualifications:

1. Installer's responsibilities include designing, fabricating, and installing fire-suppression systems and providing professional engineering services needed to assume engineering responsibility. Base calculations on results of fire-hydrant flow test.

a. Engineering Responsibility: Preparation of working plans, calculations, and field test reports by a qualified professional engineer.

B. Welding: Qualify processes and operators according to ASME Boiler and Pressure Vessel

Code: Section IX.

C. NFPA Standards: Fire-suppression-system equipment, specialties, accessories, installation, and testing shall comply with the following:

1. NFPA 13.

1.08 COORDINATION:

A. Coordinate layout and installation of sprinklers with other construction that penetrates ceilings, including light fixtures, HVAC equipment, and partition assemblies.

1.09 EXTRA MATERIALS:

A. Furnish extra materials described below that match products installed and that are packaged with protective covering for storage and identified with labels describing contents.

1. Sprinkler Cabinets: Finished, wall-mounting, steel cabinet with hinged cover, with space for minimum of six spare sprinklers plus sprinkler wrench. Include number of sprinklers required by NFPA 13 and sprinkler wrench. Include separate cabinet with sprinklers and wrench for each type of sprinkler on Project.

PART 2 - PRODUCTS

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2.01 MANUFACTURERS:

A. Manufacturers: Subject to compliance with requirements, provide products by one of those listed below.

2.02 STEEL PIPE AND FITTINGS:

A. Threaded-End, Standard-Weight Steel Pipe: ASTM A53/A53M, ASTM A135, or

ASTM A795 with factory- or field-formed threaded ends.

1. Cast-Iron Threaded Flanges: ASME B16.1.

2. Malleable-Iron Threaded Fittings: ASME B16.3.

3. Gray-Iron Threaded Fittings: ASME B16.4.

4. Steel Threaded Pipe Nipples: ASTM A733, made of ASTM A53/A53M or ASTM A106, Schedule 40, seamless steel pipe. Include ends matching joining method.

5. Steel Threaded Couplings: ASTM A865.

B. Plain-End, Standard-Weight Steel Pipe: ASTM A53/A53M, ASTM A135, or ASTM A795.

1. Locking-Lug Fittings: UL 213, ductile-iron body with retainer lugs that require one-quarter turn to secure pipe in fitting.

a. Manufacturers:

(1) Victaulic Co. of America.

C. Plain-End, Standard-Weight Steel Pipe: ASTM A53/A53M, ASTM A135, or ASTM A795.

1. Steel Welding Fittings: ASTM A234/A234M, and ASME B16.9 or ASME B16.11.

2. Steel Flanges and Flanged Fittings: ASME B16.5.

2.03 SPRINKLER SPECIALTY FITTINGS:

A. Sprinkler specialty fittings shall be UL listed or FMG approved, with 175-psig (1200-kPa) minimum working-pressure rating, and made of materials compatible with piping. Sprinkler specialty fittings shall have 250-psig (1725-kPa) minimum working-pressure rating if fittings are components of high-pressure piping system.

B. Outlet Specialty Fittings:

1. Manufacturers:

a. Central Sprinkler Corp.

b. Ductilic, Inc.

c. National Fittings, Inc.

d. Star Pipe Products; Star Fittings Div.

e. Victaulic Co. of America.

2. Mechanical-T and -Cross Fittings: UL 213, ductile-iron housing with gaskets, bolts and nuts, and threaded, locking-lug, or grooved outlets.

3. Snap-On and Strapless Outlet Fittings: UL 213, ductile-iron housing or casting with gasket and threaded outlet.

C. Sprinkler Drain and Alarm Test Fittings: Cast- or ductile-iron body; with threaded or locking-lug inlet and outlet, test valve, and orifice and sight glass.

1. Manufacturers:

a. Central Sprinkler Corp.

b. Viking Corp.

c. Victaulic Co. of America.

D. Sprinkler Branch-Line Test Fittings: Brass body with threaded inlet, capped drain outlet, and threaded outlet for sprinkler.

1. Manufacturers:

a. Elkhart Brass Mfg. Co., Inc.

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b. Potter-Roemer; Fire-Protection Div.

E. Sprinkler Inspector's Test Fitting: Cast- or ductile-iron housing with threaded inlet and drain outlet and sight glass.

1. Manufacturers:

a. Central Sprinkler Corp.

F. Drop-Nipple Fittings: UL 1474, adjustable with threaded inlet and outlet, and seals.

1. Manufacturers:

a. CECA, LLC.

b. Merit.

2.04 LISTED FIRE-PROTECTION VALVES:

A. Valves shall be UL listed or FMG approved, with 175-psig (1200 kPa) minimum pressure rating. Valves shall have 250-psig (1725-kPa) minimum pressure rating if valves are components of high-pressure piping system.

B. Ball Valves: Comply with UL 1091, except with ball instead of disc.

1. NPS 1-1/2 (DN 40) and Smaller: Bronze body with threaded ends.

2. NPS 2 and NPS 2-1/2 (DN 50 and DN 65): Bronze body with threaded ends or ductile-iron body with grooved ends.

3. NPS 3 (DN 80): Ductile-iron body with grooved ends.

4. Manufacturers:

a. NIBCO.

b. Victaulic Co. of America.

C. Butterfly Valves: UL 1091.

1. NPS 2 (DN 50) and Smaller: Bronze body with threaded ends.

a. Manufacturers:

(1) Milwaukee Valve Company.

2. NPS 2-1/2 (DN 65) and Larger: Bronze, cast-iron, or ductile-iron body; wafer type or with flanged or grooved ends.

a. Manufacturers:

(1) Central Sprinkler Corp.

(2) McWane, Inc.; Kennedy Valve Div.

(3) Mueller Company.

(4) NIBCO.

(5) Pratt, Henry Company.

(6) Victaulic Co. of America.

D. Check Valves NPS 2 (DN 50) and Larger: UL 312, swing type, cast-iron body with flanged or grooved ends.

1. Manufacturers:

a. Central Sprinkler Corp.

b. Crane Co.; Crane Valve Group; Crane Valves.

c. Crane Co.; Crane Valve Group; Jenkins Valves.

d. Grinnell Fire Protection.

e. Hammond Valve.

f. McWane, Inc.; Kennedy Valve Div.

g. Mueller Company.

h. NIBCO.

i. Potter-Roemer; Fire Protection Div.

j. Reliable Automatic Sprinkler Co., Inc.

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k. Stockham.

l. Victaulic Co. of America.

m. Watts Industries, Inc.; Water Products Div.

E. Gate Valves: UL 262, OS&Y type.

1. NPS 2 (DN 50) and Smaller: Bronze body with threaded ends.

a. Manufacturers:

(1) Crane Co.; Crane Valve Group; Crane Valves.

(2) Hammond Valve.

(3) NIBCO.

2. NPS 2-1/2 (DN 65) and Larger: Cast-iron body with flanged ends.

a. Manufacturers:

(1) Clow Valve Co.

(2) Crane Co.; Crane Valve Group; Crane Valves.

(3) Crane Co.; Crane Valve Group; Jenkins Valves.

(4) Hammond Valve.

(5) Milwaukee Valve Company.

(6) Mueller Company.

(7) NIBCO.

F. Indicating Valves: UL 1091, with integral indicating device and ends matching connecting piping.

1. Indicator: Electrical, 115-Vac, prewired, single-circuit, supervisory switch.

2. NPS 2 (DN 50) and Smaller: Ball or butterfly valve with bronze body and threaded ends.

a. Manufacturers:

(1) Milwaukee Valve Company.

(2) NIBCO.

(3) Victaulic Co. of America.

3. NPS 2-1/2 (DN 65) and Larger: Butterfly valve with cast- or ductile-iron body; wafer type or with flanged or grooved ends.

a. Manufacturers:

(1) Central Sprinkler Corp.

(2) Grinnell Fire Protection.

(3) McWane, Inc.; Kennedy Valve Div.

(4) Milwaukee Valve Company.

(5) NIBCO.

(6) Victaulic Co. of America.

2.05 UNLISTED GENERAL-DUTY VALVES:

A. Ball Valves NPS 2 (DN 50) and Smaller: MSS SP-110, 2-piece copper-alloy body with chrome-plated brass ball, 600-psig (4140-kPa) minimum CWP rating, blowout-proof stem, and threaded ends.

B. Check Valves NPS 2 (DN 50) and Smaller: MSS SP-80, Type 4, Class 125 minimum, swing type with bronze body, nonmetallic disc, and threaded ends.

C. Gate Valves NPS 2 (DN 50) and Smaller: MSS SP-80, Type 2, Class 125 minimum, with bronze body, solid wedge, and threaded ends.

D. Globe Valves NPS 2 (DN 50) and Smaller: MSS SP-80, Type 2, Class 125 minimum, with bronze body, nonmetallic disc, and threaded ends.

2.06 SPECIALTY VALVES:

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A. Sprinkler System Control Valves: UL listed or FMG approved, cast- or ductile-iron body with flanged or grooved ends, and 175-psig (1200-kPa) minimum pressure rating. Control valves shall have 250-psig (1725-kPa) minimum pressure rating if valves are components of high-pressure piping system.

1. Manufacturers:

a. Central Sprinkler Corp.

b. Grinnell Fire Protection.

c. Reliable Automatic Sprinkler Co., Inc.

d. Star Sprinkler Inc.

e. Victaulic Co. of America.

f. Viking Corp.

2. Alarm Check Valves: UL 193, designed for horizontal or vertical installation, with bronze grooved seat with O-ring seals, single-hinge pin, and latch design. Include trim sets for bypass, drain, electrical sprinkler alarm switch, pressure gages, and fill-line attachment with strainer.

a. Drip Cup Assembly: Pipe drain with check valve to main drain piping.

B. Pressure-Regulating Valves: UL 1468, brass or bronze, NPS 1-1/2 and NPS 2-1/2 (DN 40 and DN 65) 400-psig (2760-kPa) minimum rating. Include female NPS inlet and outlet, adjustable setting feature, and straight or 90-degree-angle pattern design as indicated.

1. Finish: Rough metal or chrome-plated.

a. Manufacturers:

(1) Elkhart Brass Mfg. Co., Inc.

(2) Grinnell Fire Protection.

(3) Potter-Roemer; Fire Protection Div.

(4) Zurn Industries, Inc.; Wilkins Div.

C. Automatic Drain Valves: UL 1726, NPS 3/4 (DN 20), ball-check device with threaded ends.

1. Manufacturers:

a. Grinnell Fire Protection.

2.07 SPRINKLERS:

A. Sprinklers shall be UL listed or FMG approved, with 175-psig (1200-kPa) minimum pressure rating. Sprinklers shall have 250-psig (1725-kPa) minimum pressure rating if sprinklers are components of high-pressure piping system.

B. Manufacturers:

1. Central Sprinkler Corp.

2. Grinnell Fire Protection.

3. Reliable Automatic Sprinkler Co., Inc.

4. Star Sprinkler Inc.

5. Victaulic Co. of America.

6. Viking Corp.

C. Automatic Sprinklers: With heat-responsive element complying with the following:

1. UL 199, for nonresidential applications.

D. Sprinkler Types and Categories: Nominal 1/2-inch (12.7-mm) orifice for "Ordinary" temperature classification rating, unless otherwise indicated or required by application.

1. Orifice: 1/2 inch (12.7 mm), with discharge coefficient K between 5.3 and 5.8.

2. Orifice: 17/32 inch (13.5 mm), with discharge coefficient K between 7.4 and 8.2.

E. Sprinkler types, features, and options as follows:

1. Pendent sprinklers.

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2. Recessed sprinklers, including escutcheon.

3. Upright sprinklers.

F. Sprinkler Finishes: Chrome plated, bronze, and painted.

G. Special Coatings: Wax, lead, and corrosion-resistant paint.

H. Sprinkler Escutcheons: Materials, types, and finishes for the following sprinkler mounting applications. Escutcheons for concealed, flush, and recessed-type sprinklers are specified with sprinklers.

1. Ceiling Mounting: Chrome-plated steel, one piece, flat.

2. Sidewall Mounting: Chrome-plated steel, one piece, flat.

I. Sprinkler Guards: Wire-cage type, including fastening device for attaching to sprinkler.

2.08 ALARM DEVICES:

A. Alarm-device types shall match piping and equipment connections.

B. Water-Motor-Operated Alarm: UL 753, mechanical-operation type with pelton-wheel operator with shaft length, bearings, and sleeve to suit wall construction and 10-inch- (250-mm-) diameter, cast-aluminum alarm gong with red-enamel factory finish. Include NPS 3/4 (DN 20) inlet and NPS 1 (DN 25) drain connections.

1. Manufacturers:

a. Central Sprinkler Corp.

b. Globe Fire Sprinkler Corporation.

c. Grinnell Fire Protection.

d. Reliable Automatic Sprinkler Co., Inc.

e. Star Sprinkler Inc.

f. Viking Corp.

C. Electrically Operated Alarm: UL 464, with 6-inch- (150-mm-) minimum- diameter, vibrating-type, metal alarm bell with red-enamel factory finish and suitable for outdoor use.

1. Manufacturers:

a. Potter Electric Signal Company.

b. System Sensor.

D. Water-Flow Indicator: UL 346, electrical-supervision, paddle-operated-type, water-flow detector with 250-psig (1725-kPa) pressure rating and designed for horizontal or vertical installation. Include two single-pole, double-throw circuit switches for isolated alarm and auxiliary contacts, 7 A, 125-V ac and 0.25 A, 24-V dc; complete with factory-set, field-adjustable retard element to prevent false signals and tamperproof cover that sends signal if removed.

1. Manufacturers:

a. ADT Security Services, Inc.

b. Grinnell Fire Protection.

c. ITT McDonnell & Miller.

d. Potter Electric Signal Company.

e. System Sensor.

f. Viking Corp.

g. Watts Industries, Inc.; Water Products Div.

E. Pressure Switch: UL 753, electrical-supervision-type, water-flow switch with retard feature.

Include single-pole, double-throw, normally closed contacts and design that operates on rising pressure and signals water flow.

1. Manufacturers:

a. Grinnell Fire Protection.

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b. Potter Electric Signal Company.

c. System Sensor.

d. Viking Corp.

F. Valve Supervisory Switch: UL 753, electrical, single-pole, double-throw switch with normally closed contacts. Include design that signals controlled valve is in other than fully open position.

1. Manufacturers:

a. McWane, Inc.; Kennedy Valve Div.

b. Potter Electric Signal Company.

c. System Sensor.

2.09 PRESSURE GAUGES:

A. Manufacturers:

1. Dresser Equipment Group; Instrument Div.

2. Marsh Bellofram.

B. Description: UL 393, 3-1/2- to 4-1/2-inch- (90- to 115-mm-) diameter, dial pressure gauge with range of 0 to 300 psig (0 to 2070 kPa).

1. Water System Piping: Include caption "WATER" or "AIR/WATER" on dial face.

2. Air System Piping: Include retard feature and caption "AIR" or "AIR/WATER" on dial face.

PART 3 - EXECUTION

3.01 PREPARATION:

A. Perform fire-hydrant flow test according to NFPA 13 and NFPA 291. Use results for system design calculations required in Part 1 "Quality Assurance" Article.

B. Report test results promptly and in writing.

3.02 EXAMINATION:

A. Examine roughing-in for hose connections to verify actual locations of piping connections before installation.

B. Examine walls and partitions for suitable thicknesses, fire- and smoke-rated construction, and other conditions where hose connections are to be installed.

C. Proceed with installation only after unsatisfactory conditions have been corrected.

3.03 PIPING APPLICATIONS, GENERAL:

A. Shop weld pipe joints where welded piping is indicated.

B. Do not use welded joints for galvanized-steel pipe.

C. Flanges, flanged fittings, unions, nipples, and transition and special fittings with finish and pressure ratings same as or higher than system's pressure rating may be used in aboveground applications, unless otherwise indicated.

D. Piping between Fire Department Connections and Check Valves: Galvanized, standard-weight steel pipe with either threaded ends; cast- or malleable-iron threaded fittings; and threaded joints or grooved ends; grooved-end fittings; grooved-end-pipe couplings; and grooved joints.

3.04 SPRINKLER SYSTEM PIPING APPLICATIONS:

A. Standard-Pressure, Wet-Pipe Sprinkler System, 175-psig (1200-kPa) Maximum Working

Pressure:

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1. Sprinkler-Piping Fitting Option: Specialty sprinkler fittings, NPS 2 (DN 50) and smaller, including mechanical-T and -cross fittings, may be used downstream from sprinkler zone valves.

2. NPS 1-1/2 (DN 40) and Smaller: Threaded-end, black, standard-weight steel pipe; cast-or malleable-iron threaded fittings; and threaded joints.

3. NPS 1-1/2 (DN 40) and Smaller: Plain-end, black, standard-weight steel pipe; locking-lug fittings; and twist-locked joints.

4. NPS 2 (DN 50): Threaded-end, black, standard-weight steel pipe; cast- or malleable-iron threaded fittings; and threaded joints.

5. NPS 2 (DN 50): Plain-end, black, standard-weight steel pipe; locking-lug fittings; and twist-locked joints.

6. NPS 2 (DN 50): Plain-end, black, standard-weight steel pipe; steel welding fittings; and welded joints.

7. NPS 2-1/2 to NPS 3-1/2 (DN 65 to DN 90): Threaded-end, black, standard-weight steel pipe; cast- or malleable-iron threaded fittings; and threaded joints.

8. NPS 2-1/2 to NPS 3-1/2 (DN 65 to DN 90): Plain-end, black, standard-weight steel pipe;

steel welding fittings; and welded joints.

9. NPS 4 to NPS 6 (DN 100 to DN 150): Threaded-end, black, standard-weight steel pipe;

cast- or malleable-iron threaded fittings; and threaded joints.

10. NPS 4 to NPS 6 (DN 100 to DN 150): Plain-end, black, standard-weight steel pipe; steel welding fittings; and welded joints.

3.05 VALVE APPLICATIONS:

A. Drawings indicate valve types to be used. Where specific valve types are not indicated, the following requirements apply:

1. Listed Fire-Protection Valves: UL listed and FMG approved for applications where required by NFPA 13.

a. Shutoff Duty: Use ball, butterfly, or gate valves.

2. Unlisted General-Duty Valves: For applications where UL-listed and FMG-approved valves are not required by NFPA 13.

a. Shutoff Duty: Use ball, butterfly, or gate valves.

b. Throttling Duty: Use ball or globe valves.

3.06 JOINT CONSTRUCTION:

A. Refer to SECTION 15050 for basic piping joint construction.

B. Threaded Joints: Comply with NFPA 13 for pipe thickness and threads. Do not thread pipe smaller than NPS 8 (DN 200) with wall thickness less than Schedule 40 unless approved by authorities having jurisdiction and threads are checked by a ring gage and comply with

ASME B1.20.1.

C. Twist-Locked Joints: Insert plain-end piping into locking-lug fitting and rotate retainer lug one-quarter turn.

3.07 WATER-SUPPLY CONNECTION:

A. Connect fire-suppression piping to building's interior water distribution piping. Refer to

SECTION 15140 - DOMESTIC WATER PIPING for interior piping.

B. Install shutoff valve, check valve, pressure gauge, and drain at connection to water supply.

3.08 PIPING INSTALLATION:

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A. Refer to SECTION 15050 for basic piping installation.

B. 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 Engineer before deviating from approved working plans.

C. Use approved 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. Unions are not required on flanged devices or in piping installations using grooved joints.

E. Install flanges or flange adapters on valves, apparatus, and equipment having NPS 2-1/2 (DN 65) and larger connections.

F. Install "Inspector's Test Connections" in sprinkler system piping, complete with shutoff valve, sized and located according to NFPA 13.

G. Install sprinkler piping with drains for complete system drainage.

H. Install ball drip valves to drain piping between fire department connections and check valves.

Drain to floor drain or outside building.

I. Install alarm devices in piping systems.

J. Hangers and Supports: Comply with NFPA 13 for hanger materials.

1. Install sprinkler system piping according to NFPA 13.

K. Earthquake Protection: Install piping according to NFPA 13 to protect from earthquake damage.

L. Install pressure gauges on riser or feed main and at each sprinkler test connection. Include pressure gages with connection not less than NPS 1/4 (DN 8) and with soft metal seated globe valve, arranged for draining pipe between gauge and valve. Install gauges to permit removal, and install where they will not be subject to freezing.

M. Fill wet-pipe sprinkler system piping with water.

3.09 SPRINKLER APPLICATIONS:

A. Drawings indicate sprinkler types to be used. Where specific types are not indicated, use the following sprinkler types:

1. Rooms without Ceilings: Upright sprinklers

2. Rooms with Suspended Ceilings: Recessed sprinklers as indicated.

3. Wall Mounting: Sidewall sprinklers.

4. Sprinkler Finishes:

a. Upright, Pendent, and Sidewall Sprinklers: Chrome plated in finished spaces exposed to view; rough bronze in unfinished spaces not exposed to view; wax coated where exposed to acids, chemicals, or other corrosive fumes.

b. Concealed Sprinklers: Rough brass, with factory-painted white cover plate.

c. Flush Sprinklers: Bright chrome, with painted white escutcheon.

d. Recessed Sprinklers: Bright chrome, with bright chrome escutcheon.

e. Residential Sprinklers: Dull chrome.

3.10 SPRINKLER INSTALLATION:

A. Install sprinklers in suspended ceilings in center of narrow dimension of acoustical ceiling panels and tiles.

B. Do not install pendent or sidewall, wet-type sprinklers in areas subject to freezing. Use dry-type sprinklers with water supply from heated space.

SECTION 13915 REPAIR WING HEADQUARTERS, BLDG 706

FIRE SUPPRESSION PIPING CRWU 06-2071

BUCKLEY AFB 13915-12 06/09/09

3.11 CONNECTIONS:

A. Drawings indicate general arrangement of piping, fittings, and specialties.

B. Install piping adjacent to equipment to allow service and maintenance.

C. Connect piping to specialty valves, hose valves, specialties, and accessories.

D. Electrical Connections: Power wiring is specified in DIVISION 16.

E. Connect alarm devices to fire alarm.

F. Ground equipment according to DIVISION 16.

G. Connect wiring according to DIVISION 16.

H. Tighten electrical connectors and terminals according to manufacturer's published torque-tightening values. If manufacturer's torque values are not indicated, use those specified in UL 486A and UL 486B.

3.12 LABELING AND IDENTIFICATION:

A. Install labeling and pipe markers on equipment and piping according to requirements in

NFPA 13 and in SECTION 15075 - MECHANICAL IDENTIFICATION.

3.13 FIELD QUALITY CONTROL:

A. Perform the following field tests and inspections and prepare test reports:

1. Leak Test: After installation, charge system 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.

3. Energize circuits to electrical equipment and devices.

4. Flush, test, and inspect sprinkler systems according to NFPA 13, "Systems Acceptance"

Chapter.

5. Coordinate with fire alarm tests. Operate as required.

6. Verify that equipment hose threads are same as local fire department equipment.

B. Report test results promptly and in writing to Engineer and authorities having jurisdiction.

3.14 CLEANING AND PROTECTION:

A. Clean dirt and debris from sprinklers.

B. Remove and replace sprinklers with paint other than factory finish.

C. Protect sprinklers from damage until Substantial Completion.

3.15 DEMONSTRATION:

A. Engage a factory-authorized service representative to train Owner's maintenance personnel to adjust, operate, and maintain specialty valves.

END OF SECTION 13915

SECTION 13915 - FIRE-SUPPRESSION PIPING