21_13_13_00_10.pdf

WVA Multiple Building Fire Protection 2162942

SECTION 21 13 13.00 10

WET PIPE SPRINKLER SYSTEM, FIRE PROTECTION

05/09

PART 1 GENERAL

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

AMERICAN SOCIETY OF SANITARY ENGINEERING (ASSE)

ASSE 1015 (2011) Performance Requirements for Double Check Backflow Prevention Assemblies and Double Check Fire Protection Backflow Prevention Assemblies - (ANSI approved 2010)

ASME INTERNATIONAL (ASME)

ASME B16.1 (2015) Gray Iron Pipe Flanges and Flanged Fittings Classes 25, 125, and 250

ASME B16.11 (2011) Forged Fittings, Socket-Welding and Threaded

ASME B16.21 (2011) Nonmetallic Flat Gaskets for Pipe Flanges

ASME B16.3 (2011) Malleable Iron Threaded Fittings, Classes 150 and 300

ASME B16.4 (2011) Standard for Gray Iron Threaded Fittings; Classes 125 and 250

ASME B16.9 (2012) Standard for Factory-Made Wrought Steel Buttwelding Fittings

ASME B18.2.2 (2010) Nuts for General Applications:

Machine Screw Nuts, Hex, Square, Hex Flange, and Coupling Nuts (Inch Series)

ASTM INTERNATIONAL (ASTM)

ASTM A135/A135M (2009; R2014) Standard Specification for Electric-Resistance-Welded Steel Pipe

ASTM A183 (2014) Standard Specification for Carbon Steel Track Bolts and Nuts

ASTM A449 (2014) Standard Specification for Hex Cap Screws, Bolts, and Studs, Steel, Heat Treated, 120/105/90 ksi Minimum Tensile Strength, General Use

SECTION 21 13 13.00 10 Page 1 amendment 1.

09SEP2019

ASTM A47/A47M (1999; R 2014) Standard Specification for Ferritic Malleable Iron Castings

ASTM A53/A53M (2012) Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless

ASTM A536 (1984; R 2014) Standard Specification for Ductile Iron Castings

ASTM A795/A795M (2013) Standard Specification for Black and Hot-Dipped Zinc-Coated (Galvanized) Welded and Seamless Steel Pipe for Fire Protection Use

ASTM F436 (2011) Hardened Steel Washers

FM GLOBAL (FM)

FM APP GUIDE (updated on-line) Approval Guide http://www.approvalguide.com/

MANUFACTURERS STANDARDIZATION SOCIETY OF THE VALVE AND FITTINGS

INDUSTRY (MSS)

MSS SP-71 (2011; Errata 2013) Gray Iron Swing Check Valves, Flanged and Threaded Ends

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

NFPA 13 (2016) Standard for the Installation of Sprinkler Systems

NFPA 1963 (2014) Standard for Fire Hose Connections

NFPA 24 (2016) Standard for the Installation of Private Fire Service Mains and Their Appurtenances

U.S. DEPARTMENT OF DEFENSE (DOD)

UFC 3-600-01 (2016; with Change 1) Fire Protection Engineering for Facilities

UNDERWRITERS LABORATORIES (UL)

UL Bld Mat Dir (2012) Building Materials Directory

UL Fire Prot Dir (2012) Fire Protection Equipment Directory

1.2 SYSTEM DESCRIPTION

Furnish piping offsets, fittings, and any other accessories as required to provide a complete installation and to eliminate interference with other construction. Install sprinkler system over and under ducts, piping and platforms when such equipment can negatively effect or disrupt the sprinkler discharge pattern and coverage. Provide wet pipe sprinkler system in areas indicated on the drawings. Except as modified herein, the system

SECTION 21 13 13.00 10 Page 2 shall be designed and installed in accordance with NFPA 13 and UFC 3-600-01 .

Rack sprinklers shall be in accordance with NFPA 13 . Pipe sizes which are not indicated on drawings shall be determined by hydraulic calculation.

Design any portions of the sprinkler system that are not indicated on the drawings including locating sprinklers, piping and equipment, and size piping and equipment when this information is not indicated on the drawings or is not specified herein. The design of the sprinkler system shall be based on hydraulic calculations, and the other provisions specified herein.

1.2.1 Hydraulic Design

Hydraulically design each system to discharge a minimum density of 0.2 gpm/square foot over the hydraulically most demanding 2500 square feet of floor area. The minimum pipe size for branch lines in gridded systems shall be 1-inch. Hydraulic calculations shall be in accordance with the Area/Density Method of NFPA 13 . Water velocity in the piping shall not exceed 20 ft/s.

1.2.1.1 Hose Demand

Add an allowance for exterior hose streams of 250 gpm for ceilings 60 feet or less and 500 gpm for ceilings over 60 feet to the sprinkler system demand at the fire hydrant shown on the drawings closest to the point where the water service enters the building.

1.2.1.2 Basis for Calculations

Water Supply System Building Design :

a. The design of the system in Building 108 shall be based upon a water supply with a static pressure of 58 psi, and a flow of 1100 gpm at a residual pressure of 40 psi.

b. The design of the system in Building 126 shall be based upon a water supply with a static perssure of 58 psi, and a flow of 1045 gpm at a residual pressure of 35 psi.

c. The design of the system in Buildings 40-5, 40-6 and 41 shall be based upon a water supply with a static perssure of 78 psi, and a flow of 1115 gpm at a residual pressure of 58 psi.

d. The design of the system in Building 36 shall be based upon a water supply with a static pressure of 72 psi, and a flow of 1130 gpm at a residual pressure of 59 psi.

e. The design of the system in Building 22 shall be based upon a water supply with a static pressure of 54 psi, and a flow of 1130 gpm at a residual pressure of 47 psi.

Water supply shall be presumed available at the base of the riser.

Hydraulic calculations shall be based upon the Hazen-Williams formula with a "C" value of 120 for steel piping. Hydraulic calculations shall be based on operation of the fire pump(s) provided in Section 21 30 00 FIRE PUMPS.

1.2.1.3 Hydraulic Calculations

Submit hydraulic calculations, including a drawing showing hydraulic reference points and pipe segments and as outlined in NFPA 13 , except that calculations shall be performed by computer using software intended

SECTION 21 13 13.00 10 Page 3

WVA Mul t i pl e Bui l di ng Fi r e Pr ot ect i on 2162942 speci f i cal l y f or f i r e pr ot ect i on syst em desi gn usi ng t he desi gn dat a shown on t he dr awi ngs. Sof t war e t hat uses k- f act or s f or t ypi cal br anch l i nes i s not accept abl e. Cal cul at i ons shal l be based on t he wat er suppl y dat a shown on t he dr awi ngs t o subst ant i at e t hat t he desi gn ar ea used i n t he cal cul at i ons i s t he most demandi ng hydr aul i cal l y . Wat er suppl y cur ves and syst em r equi r ement s shal l be pl ot t ed on semi - l ogar i t hmi c gr aph paper so as t o pr esent a summar y of t he compl et e hydr aul i c cal cul at i on. Pr ovi de a summar y sheet l i s t i ng spr i nkl er s i n t he desi gn ar ea and t hei r r espect i ve hydr aul i c r ef er ence poi nt s, el evat i ons, act ual di schar ge pr essur es and act ual f l ows. El evat i ons of hydr aul i c r ef er ence poi nt s ( nodes) shal l be i ndi cat ed. Document at i on shal l i dent i f y each pi pe i ndi v i dual l y and t he nodes connect ed t her et o. I ndi cat e t he di amet er , l engt h, f l ow, vel oci t y, f r i c t i on l oss, number and t ype f i t t i ngs, t ot al f r i c t i on l oss i n t he pi pe, equi val ent pi pe l engt h and Hazen- Wi l l i ams coef f i c i ent f or each pi pe. For gr i dded syst ems, cal cul at i ons shal l show peaki ng of demand ar ea f r i c t i on l oss t o ver i f y t hat t he hydr aul i cal l y most demandi ng ar ea i s bei ng used.

Al so f or gr i dded syst ems, a f l ow di agr am i ndi cat i ng t he quant i t y and di r ect i on of f l ows shal l be i ncl uded. A dr awi ng showi ng hydr aul i c r ef er ence poi nt s ( nodes) and pi pe desi gnat i ons used i n t he cal cul at i ons shal l be i ncl uded and shal l be i ndependent of shop dr awi ngs.

1. 2. 2 Spr i nkl er Cover age

Spr i nkl er s shal l be uni f or ml y spaced on br anch l i nes. I n bui l di ngs pr ot ect ed by aut omat i c spr i nkl er s, spr i nkl er s shal l pr ovi de cover age t hr oughout 100 per cent of t he bui l di ng. Thi s i ncl udes, but i s not l i mi t ed t o, t el ephone r ooms, el ect r i cal equi pment r ooms, boi l er r ooms, swi t chgear r ooms, t r ansf or mer r ooms, and ot her el ect r i cal and mechani cal spaces.

Cover age per spr i nkl er shal l be i n accor dance wi t h NFPA 13, but shal l not exceed 130 squar e f eet f or or di nar y hazar d occupanci es, and 225 squar e f eet f or l i ght hazar d occupanci es.

1. 3 SUBMITTALS

Al l submi t t al s r equi r e Desi gner Appr oval and submi ssi on t o t he Gover nment f or i nf omat i on onl y. Submi t t he f ol l owi ng:

SD- 02 Shop Dr awi ngs

Shop Dr awi ngs

As- Bui l t Dr awi ngs

SD- 03 Pr oduct Dat a

Fi r e Pr ot ect i on Rel at ed Submi t t al s

Mat er i al s and Equi pment

Spar e Par t s

Pr el i mi nar y Test s

Fi nal Accept ance Test

Onsi t e Tr ai ni ng

Fi r e Pr ot ect i on Speci al i s t

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Spr i nkl er Syst em I nst al l er

SD- 05 Desi gn Dat a

Desi gn Anal ysi s

Hydr aul i c Cal cul at i ons

SD- 06 Test Repor t s

Pr el i mi nar y Test Repor t

Fi nal Accept ance Test Repor t

SD- 07 Cer t i f i cat es

I nspect i on by Fi r e Pr ot ect i on Speci al i s t

SD- 10 Oper at i on and Mai nt enance Dat a

Oper at i ng and Mai nt enance Manual s

1. 4 QUALI TY ASSURANCE

Compl i ance wi t h r ef er enced NFPA st andar ds i s mandat or y. I n t he event of a conf l i c t bet ween speci f i c pr ovi s i ons of t hi s speci f i cat i on and appl i cabl e NFPA st andar ds, t hi s speci f i cat i on gover nS. I nt er pr et r ef er ence t o " aut hor i t y havi ng j ur i sdi ct i on" t o mean t he Cont r act i ng Of f i cer .

1. 4. 1 Spr i nkl er Syst em I nst al l er

Wor k speci f i ed i n t hi s sect i on shal l be per f or med by t he Spr i nkl er Syst em I nst al l er who i s r egul ar l y engaged i n t he i nst al l at i on of t he t ype and compl exi t y of syst em speci f i ed i n t he cont r act document s, and who has ser ved i n a s i mi l ar capaci t y f or at l east t hr ee syst ems t hat have per f or med i n t he manner i nt ended f or a per i od of not l ess t han 6 mont hs. Submi t t he name and document at i on of cer t i f i cat i on of t he pr oposed Spr i nkl er Syst em I nst al l er , concur r ent wi t h submi t t al of t he Fi r e Pr ot ect i on Speci al i s t Qualifications.

Qual i f i cat i ons of Syst em Techni c i an: I nst al l at i on dr awi ngs, shop dr awi ng and as- bui l t dr awi ngs shal l be pr epar ed, by or under t he super vi s i on of , an i ndi v i dual who i s exper i enced wi t h t he t ypes of wor ks speci f i ed her ei n, and i s cur r ent l y cer t i f i ed by t he Nat i onal I nst i t ut e f or Cer t i f i cat i on i n Engi neer i ng Technol ogi es ( NI CET) as an engi neer i ng t echni c i an wi t h mi ni mum Level - I I I cer t i f i cat i on i n Aut omat i c Spr i nkl er Syst em pr ogr am. Cont r act or shal l submi t dat a f or appr oval showi ng t he name and cer t i f i cat i on of al l i nvol ved i ndi v i dual s wi t h such qual i f i cat i ons at or pr i or t o submi t t al of drawings.

1. 4. 2 Shop Dr awi ngs

Shop Dr awi ngs shal l conf or m t o t he r equi r ement s est abl i shed f or wor ki ng pl ans as pr escr i bed i n NFPA 13. Submi t 3 copi es of t he Spr i nkl er Syst em shop dr awi ngs, no l at er t han 21 days pr i or t o t he st ar t of spr i nkl er syst em i nst al l at i on. Dr awi ngs shal l i nc l ude pl an and el evat i on v i ews demonst r at i ng t hat t he equi pment wi l l f i t t he al l ot t ed spaces wi t h c l ear ance f or i nst al l at i on and mai nt enance. Each set of dr awi ngs shal l i ncl ude t he f ol l owi ng:

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a. Descr i pt i ve i ndex of dr awi ngs i n t he submi t t al wi t h dr awi ngs l i s t ed i n sequence by dr awi ng number . A l egend i dent i f y i ng devi ce symbol s, nomencl at ur e, and convent i ons used.

b. Fl oor pl ans dr awn t o a scal e not l ess t han 1/ 8" = 1' - 0" whi ch c l ear l y show l ocat i ons of spr i nkl er s, r i ser s, pi pe hanger s, sei smi c separ at i on assembl i es, i nspect or ' s t est connect i ons, dr ai ns, and ot her appl i cabl e det ai l s necessar y t o c l ear l y descr i be t he pr oposed ar r angement . Each t ype of f i t t i ng used and t he l ocat i ons of bushi ngs, r educi ng coupl i ngs, and wel ded j oi nt s shal l be i ndi cat ed.

c. Act ual cent er - t o- cent er di mensi ons bet ween spr i nkl er s on br anch l i nes and bet ween br anch l i nes; f r om end spr i nkl er s t o adj acent wal l s; f r om wal l s t o br anch l i nes; f r om spr i nkl er f eed mai ns, cr oss- mai ns and br anch l i nes t o f i ni shed f l oor and r oof or cei l i ng. A det ai l shal l show t he di mensi on f r om t he spr i nkl er and spr i nkl er def l ect or t o t he cei l i ng i n f i ni shed ar eas.

d. Longi t udi nal and t r ansver se bui l di ng sect i ons showi ng t ypi cal br anch l i ne and cr oss- mai n pi pe r out i ng as wel l as el evat i on of each t ypi cal spr i nkl er above f i ni shed f l oor .

e. Det ai l s of each t ype of r i ser assembl y; pi pe hanger ; r est r ai nt of under gr ound wat er mai n at poi nt - of - ent r y i nt o t he bui l di ng, and el ect r i cal devi ces and i nt er connect i ng wi r i ng. Submi t l oad cal cul at i ons f or s i z i ng of sway br aci ng, f or syst ems t hat ar e r equi r ed t o be pr ot ect ed agai nst damage f r om ear t hquakes.

1. 5 DELI VERY, STORAGE, AND HANDLI NG

Al l equi pment del i ver ed and pl aced i n st or age shal l be housed i n a manner t o pr ecl ude any damage f r om t he weat her , humi di t y and t emper at ur e var i at i ons, di r t and dust , or ot her cont ami nant s. Addi t i onal l y, al l pi pes shal l ei t her be capped or pl ugged unt i l i nst al l ed.

1. 6 EXTRA MATERI ALS

Submi t spar e par t s dat a f or each di f f er ent i t em of mat er i al and equi pment speci f i ed. The dat a shal l i ncl ude a compl et e l i s t of par t s and suppl i es, wi t h cur r ent uni t pr i ces and sour ce of suppl y, and a l i s t of par t s r ecommended by t he manuf act ur er t o be r epl aced af t er 1 year and 3 year s of ser vi ce. I ncl ude a l i s t of speci al t ool s and t est equi pment r equi r ed f or mai nt enance and t est i ng of t he pr oduct s suppl i ed.

PART 2 PRODUCTS

2. 1 STANDARD PRODUCTS

Pr ovi de mat er i al s and equi pment whi ch ar e st andar d pr oduct s of a manuf act ur er r egul ar l y engaged i n t he manuf act ur e of such pr oduct s and t hat essent i al l y dupl i cat e i t ems t hat have been i n sat i sf act or y use f or at l east 2 year s pr i or t o bi d openi ng.

2. 2 NAMEPLATES

Al l equi pment shal l have a namepl at e t hat i dent i f i es t he manuf act ur er ' s name, addr ess, t ype or st y l e, model or ser i al number , and cat al og number .

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2. 3 REQUI REMENTS FOR FI RE PROTECTI ON SERVI CE

Pr ovi de Mat er i al s and Equi pment t hat have been t est ed by Under wr i t er s Labor at or i es, I nc. and ar e l i s t ed i n UL Fi r e Pr ot Di r or appr oved by Fact or y Mut ual and l i s t ed i n FM APP GUI DE. Wher e t he t er ms " l i s t ed" or " appr oved" appear i n t hi s speci f i cat i on, such shal l mean l i s t ed i n UL Fi r e Pr ot Di r or FM APP GUI DE. Submi t manuf act ur er ' s cat al og dat a i ncl uded wi t h t he Spr i nkl er Syst em Dr awi ngs f or al l i t ems speci f i ed her ei n. The dat a shal l be hi ghl i ght ed t o show model , s i ze, opt i ons, et c. , t hat ar e i nt ended f or consi der at i on. Dat a shal l be adequat e t o demonst r at e compl i ance wi t h al l cont r act r equi r ement s. I n addi t i on, pr ovi de a compl et e equi pment l i s t t hat i ncl udes equi pment descr i pt i on, model number and quantity.

2. 4 ABOVEGROUND PI PI NG COMPONENTS

Abovegr ound pi pi ng shal l be st eel .

2. 4. 1 St eel Pi pi ng Component s

2. 4. 1. 1 St eel Pi pe

Except as modi f i ed her ei n, st eel pi pe shal l be bl ack as per mi t t ed by NFPA 13 and shal l conf or m t o appl i cabl e pr ovi s i ons of ASTM A795/ A795M, ASTM A53/ A53M, or ASTM A135/ A135M. Pi pe i n whi ch t hr eads or gr ooves ar e cut or r ol l ed f or med shal l be Schedul e 10 or Schedul e 40 or shal l be l i s t ed by Under wr i t er s ' Labor at or i es t o have a cor r osi on r esi st ance r at i o ( CRR) of

1. 0 or gr eat er af t er t hr eads or gr ooves ar e cut or r ol l ed f or med. Pi pe shal l be mar ked wi t h t he name of t he manuf act ur er , k i nd of pi pe, and ASTM designation.

2. 4. 1. 2 Fi t t i ngs f or Non- Gr ooved St eel Pi pe

Fi t t i ngs shal l be cast i r on conf or mi ng t o ASME B16. 4, st eel conf or mi ng t o ASME B16. 9 or ASME B16. 11, or mal l eabl e i r on conf or mi ng t o ASME B16. 3.

St eel pr ess f i t t i ngs shal l be appr oved f or f i r e pr ot ect i on syst ems.

Fi t t i ngs i nt o whi ch spr i nkl er s, dr op ni ppl es or r i ser ni ppl es ( spr i gs) ar e scr ewed shal l be t hr eaded t ype. Pl ai n- end f i t t i ngs wi t h mechani cal coupl i ngs, f i t t i ngs t hat use st eel gr i ppi ng devi ces t o bi t e i nt o t he pi pe and segment ed wel ded f i t t i ngs shal l not be used.

2. 4. 1. 3 Gr ooved Mechani cal Joi nt s and Fi t t i ngs

Joi nt s and f i t t i ngs shal l be desi gned f or not l ess t han 175 psi ser vi ce and shal l be t he pr oduct of t he same manuf act ur er ; segment ed wel ded f i t t i ngs shal l not be used. Fi t t i ng and coupl i ng houses shal l be mal l eabl e i r on conf or mi ng t o ASTM A47/ A47M, Gr ade 32510; duct i l e i r on conf or mi ng t o ASTM A536, Gr ade 65- 45- 12. Gasket shal l be t he f l ush t ype t hat f i l l s t he ent i r e cavi t y bet ween t he f i t t i ng and t he pi pe. Nut s and bol t s shal l be heat - t r eat ed st eel conf or mi ng t o ASTM A183 and shal l be cadmi um pl at ed or z i nc el ect r opl at ed.

2. 4. 1. 4 Flanges

Fl anges shal l conf or m t o NFPA 13 and ASME B16. 1. Gasket s shal l be non- asbest os compr essed mat er i al i n accor dance wi t h ASME B16. 21, 1/ 16 i nch t hi ck, and f ul l f ace or sel f - cent er i ng f l at r i ng t ype.

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2.4.1.5 Bolts, Nut, and Washers

Bolts shall be conform to ASTM A449, Type 1 and shall extend no less than three full threads beyond the nut with bolts tightened to the required torque. Nuts shall be hexagon type conforming to ASME B18.2.2 . Washers shall meet the requirements of ASTM F436. Flat circular washers shall be provided under all bolt heads and nuts.

2.4.2 Pipe Hangers

Hangers shall be listed in UL Fire Prot Dir or FM APP GUIDE and of the type suitable for the application, construction, and pipe type and sized to be supported.

2.4.3 Valves

2.4.3.1 Control Valve and Gate Valve

Manually operated sprinkler control valve and gate valve shall be outside stem and yoke (OS&Y) type and shall be listed in UL Bld Mat Dir or

FM APP GUIDE.

2.4.3.2 Check Valve

Check valve 2 inches and larger shall be listed in UL Bld Mat Dir or FM APP GUIDE. Check valves 4 inches and larger shall be of the swing type with flanged cast iron body and flanged inspection plate, shall have a clear waterway and shall meet the requirements of MSS SP-71 , for Type 3 or 4.

2.5 ALARM CHECK VALVE ASSEMBLY

Assembly shall include an alarm check valve, standard trim piping, pressure gauges, bypass, retarding chamber, testing valves, main drain, and other components as required for a fully operational system.

2.6 WATERFLOW ALARM

Electrically operated, exterior-mounted, waterflow alarm bell shall be provided and installed in accordance with NFPA 13 . Waterflow alarm bell shall be rated 24 VDC and shall be connected to the Fire Alarm Control Panel(FACP).

2.7 ALARM INITIATING AND SUPERVISORY DEVICES

2.7.1 Sprinkler Waterflow Indicator Switch, Vane Type

Switch shall be vane type with a pipe saddle and cast aluminum housing.

The electro-mechanical device shall include a flexible, low-density polyethylene paddle conforming to the inside diameter of the fire protection pipe. The device shall sense water movements and be capable of detecting a sustained flow of 10 gpm or greater. The device shall contain a retard device set to 30 seconds to reduce the possibility of false alarms caused by transient flow surges. The switch shall be tamper resistant and contain two SPDT (Form C) contacts arranged to transfer upon removal of the housing cover, and shall be equipped with a silicone rubber gasket to assure positive water seal and a dustproof cover and gasket to seal the mechanism from dirt and moisture.

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2.7.2 Sprinkler Pressure (Waterflow) Alarm Switch

Pressure switch shall include a metal housing with a neoprene diaphragm, SPDT snap action switches and a 1/2 inch NPT male pipe thread. The switch shall have a maximum service pressure rating of 175 psi. There shall be two SPDT (Form C) contacts factory adjusted to operate at 4 to 8 psi. The switch shall be capable of being mounted in any position in the alarm line trim piping of the alarm check valve.

2.7.3 Valve Supervisory (Tamper) Switch

Switch shall be suitable for mounting to the type of control valve to be supervised open. The switch shall be tamper resistant and contain one set of SPDT (Form C) contacts arranged to transfer upon removal of the housing cover or closure of the valve of more than two rotations of the valve stem.

2.8 FIRE DEPARTMENT CONNECTION

Fire department connection shall be projecting or flush type with cast brass body, matching wall escutcheon lettered "Auto Spkr" with a polished brass finish. The connection shall have two inlets with individual self-closing clappers, caps with drip drains and chains. Female inlets shall have 2-1/2 inch diameter American National Fire Hose Connection Screw Threads (NH) per NFPA 1963 .

2.9 SPRINKLERS

Sprinklers shall be used in accordance with their listed coverage limitations. Temperature classification shall be as indicated. Sprinklers in high heat areas including attic spaces or in close proximity to unit heaters shall have temperature classification in accordance with NFPA 13 .

Extended coverage sprinklers shall not be used.

2.9.1 Flush Sprinkler

Flush sprinkler shall be stainless steel, quick-response type and shall have a nominal 1/2 inch or 17/32 inch orifice. Provide escutcheon plate of baked enamel finished to match ceiling.

2.9.2 Pendent Sprinkler

Pendent sprinkler shall be of the fusible strut or glass bulb type, quick-response type with nominal 1/2 inch or 17/32 inch orifice. Pendent sprinklers shall have a stainless steel finish.

2.9.3 Upright Sprinkler

Upright sprinkler shall be stainless steel quick-response type and shall have a nominal 1/2 inch or 17/32 inch orifice.

2.9.4 Sidewall Sprinkler

Sidewall sprinkler shall have a nominal 1/2 inch orifice. Sidewall sprinkler shall have a stainless steel finish. Sidewall sprinkler shall be the quick-response type.

2.9.5 Intermediate Level Rack Sprinkler

Intermediate level rack sprinkler shall be of the upright or pendent type

SECTION 21 13 13.00 10 Page 9 with nominal 1/2 inch orifice and minimum "K" factor of 5.5. The sprinkler shall be equipped with a deflector plate to shield the fusible element from water discharged above it.

2.9.6 Dry Sprinkler Assembly

Dry sprinkler assembly shall be of the pendent, upright, or 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, polyester coating or white enamel finish.

2.10 ACCESSORIES

2.10.1 Sprinkler Cabinet

Spare sprinklers shall be provided in accordance with NFPA 13 and shall be packed in a suitable metal or plastic cabinet. Spare sprinklers shall be representative of, and in proportion to, the number of each type and temperature rating of the sprinklers installed. At least one wrench of each type required shall be provided.

2.10.2 Pendent Sprinkler Escutcheon

Escutcheon shall be one-piece metallic type with a depth of less than 3/4 inch and suitable for installation on pendent sprinklers. The escutcheon shall have a factory finish that matches the pendent sprinkler heads.

2.10.3 Pipe Escutcheon

Escutcheon shall be polished chromium-plated zinc alloy, or polished chromium-plated copper alloy. Escutcheons shall be either one-piece or split-pattern, held in place by internal spring tension or set screw.

2.10.4 Sprinkler Guard

Guard shall be a steel wire cage designed to encase the sprinkler and protect it from mechanical damage. Guards shall be provided on sprinklers located as indicated.

2.10.5 Identification Sign

Valve identification sign shall be minimum 6 inches wide by 2 inches high with enamel baked finish on minimum 18 gauge steel or 0.024 inch aluminum with red letters on a white background or white letters on red background.

Wording of sign shall include, but not be limited to "main drain," "auxiliary drain," "inspector's test," "alarm test," "alarm line," and similar wording as required to identify operational components.

2.11 DOUBLE-CHECK VALVE BACKFLOW PREVENTION ASSEMBLY

Double-check backflow prevention assembly shall comply with ASSE 1015 . The assembly shall have a bronze, cast-iron or stainless steel body with flanged ends. The assembly shall include pressure gauge test ports and OS&Y shutoff valves on the inlet and outlet, 2-positive-seating check valve for continuous pressure application, and four test cocks. Assemblies shall be rated for working pressure of 150 psi The maximum pressure loss shall be 6 psi at a flow rate equal to the sprinkler water demand, at the location of the assembly. A test port for a pressure gauge shall be provided both upstream and downstream of the double check backflow prevention assembly

SECTION 21 13 13.00 10 Page 10 valves.

PART 3 EXECUTION

3.1 FIELD MEASUREMENTS

After becoming familiar with all details of the work, verify all dimensions in the field, and advise the Contracting Officer of any discrepancy before performing the work.

3.2 INSTALLATION REQUIREMENTS

The installation shall be in accordance with the applicable provisions of NFPA 13 , NFPA 24 and publications referenced therein. Installation of in-rack sprinklers shall comply with applicable provisions of NFPA 13 .

3.3 INSPECTION BY FIRE PROTECTION SPECIALIST

Prior to ceiling installation and concurrent with the Final Acceptance Test Report, certification by the Fire Protection Specialist that the sprinkler system is installed in accordance with the contract requirements, including signed approval of the Preliminary and Final Acceptance Test Reports. The Fire Protection Specialist shall: 1) inspect the sprinkler system periodically during the installation to assure that the sprinkler system is being provided and installed in accordance with the contract requirements,

2) witness the preliminary and final tests, and sign the test results, 3) after completion of the system inspections and a successful final test, certify in writing that the system has been installed in accordance with the contract requirements. Any discrepancy shall be brought to the attention of the Contracting Officer in writing, no later than three working days after the discrepancy is discovered.

3.4 ABOVEGROUND PIPING INSTALLATION

3.4.1 Piping in Exposed Areas

Install exposed piping without diminishing exit access widths, corridors or equipment access. Exposed horizontal piping, including drain piping, shall be installed to provide maximum headroom.

3.4.2 Piping in Finished Areas

In areas with suspended or dropped ceilings and in areas with concealed spaces above the ceiling, piping shall be concealed above ceilings. Piping shall be inspected, tested and approved before being concealed. Risers and similar vertical runs of piping in finished areas shall be concealed.

3.4.3 Pendent Sprinklers

Drop nipples to pendent sprinklers shall consist of minimum 1 inch pipe with a reducing coupling into which the sprinkler shall be threaded.

Hangers shall be provided on arm-overs to drop nipples supplying pendent sprinklers when the arm-over exceeds 12 inches for steel pipe or 6 inches for copper tubing. Where sprinklers are installed below suspended or dropped ceilings, drop nipples shall be cut such that sprinkler ceiling plates or escutcheons are of a uniform depth throughout the finished space.

The outlet of the reducing coupling shall not extend more than 1 inch below the underside of the ceiling. On pendent sprinklers installed below suspended or dropped ceilings, the distance from the sprinkler deflector to

SECTION 21 13 13.00 10 Page 11 the underside of the ceiling shall not exceed 4 inches. Recessed pendent sprinklers shall be installed such that the distance from the sprinkler deflector to the underside of the ceiling shall not exceed the manufacturer's listed range and shall be of uniform depth throughout the finished area. Pendent sprinklers in suspended ceilings shall be centered in ceiling grid tiles.

3.4.4 Upright Sprinklers

Riser nipples or "sprigs" to upright sprinklers shall contain no fittings between the branch line tee and the reducing coupling at the sprinkler.

Riser nipples exceeding 30 inches in length shall be individually supported.

3.4.5 Pipe Joints

Pipe joints shall conform to NFPA 13 , except as modified herein. Not more than four threads shall show after joint is made up. Welded joints will be permitted, only if welding operations are performed as required by NFPA 13 at the Contractor's fabrication shop, not at the project construction site.

Flanged joints shall be provided where indicated or required by NFPA 13 .

Grooved pipe and fittings shall be prepared in accordance with the manufacturer's latest published specification according to pipe material, wall thickness and size. Grooved couplings, fittings and grooving tools shall be products of the same manufacturer. For copper tubing, pipe and groove dimensions shall comply with the tolerances specified by the coupling manufacturer. The diameter of grooves made in the field shall be measured using a "go/no-go" gauge, vernier or dial caliper, narrow-land micrometer, or other method specifically approved by the coupling manufacturer for the intended application. Groove width and dimension of groove from end of pipe shall be measured and recorded for each change in grooving tool setup to verify compliance with coupling manufacturer's tolerances. Grooved joints shall not be used in concealed locations, such as behind solid walls or ceilings, unless an access panel is shown on the drawings for servicing or adjusting the joint.

3.4.6 Reducers

Reductions in pipe sizes shall be made with one-piece tapered reducing fittings. The use of grooved-end or rubber-gasketed reducing couplings will not be permitted. When standard fittings of the required size are not manufactured, single bushings of the face type will be permitted. Where used, face bushings shall be installed with the outer face flush with the face of the fitting opening being reduced. Bushings shall not be used in elbow fittings, in more than one outlet of a tee, in more than two outlets of a cross, or where the reduction in size is less than 1/2 inch.

3.4.7 Pipe Penetrations

Cutting structural members for passage of pipes or for pipe-hanger fastenings will not be permitted. Pipes that must penetrate concrete or masonry walls or concrete floors shall be core-drilled and provided with pipe sleeves. Each sleeve shall be Schedule 40 galvanized steel, ductile iron or cast iron pipe and shall extend through its respective wall or floor and be cut flush with each wall surface. Sleeves shall provide required clearance between the pipe and the sleeve per NFPA 13 . The space between the sleeve and the pipe shall be firmly packed with mineral wool insulation. Where pipes penetrate fire walls, fire partitions, or floors, pipes shall be fire stopped. In penetrations that are not fire-rated or not a floor penetration, the space between the sleeve and the pipe shall be

SECTION 21 13 13.00 10 Page 12 sealed at both ends with plastic waterproof cement that will dry to a firm but pliable mass or with a mechanically adjustable segmented elastomer seal.

3.4.8 Escutcheons

Escutcheons shall be provided for pipe penetration of ceilings and walls.

Escutcheons shall be securely fastened to the pipe at surfaces through which piping passes.

3.4.9 Inspector's Test Connection

Unless otherwise indicated, test connection shall consist of 1 inch pipe connected at the riser as a combination test and drain valve; a test valve located approximately 7 feet above the floor; a smooth bore brass outlet equivalent to the smallest orifice sprinkler used in the system; a 1/2 inch listed pressure relief valve set to operate at 175 psi; and a painted metal identification sign affixed to the valve with the words "Inspector's Test." The discharge orifice shall be located outside the building wall directed so as not to cause damage to adjacent construction or landscaping during full flow discharge.

3.4.10 Drains

Main drain piping shall be provided to discharge at a safe point outside the building. Auxiliary drains shall be provided as required by NFPA 13 .

3.4.11 Installation of Fire Department Connection

Connection shall be mounted on the exterior wall approximately 3 feet above finished grade as indicated. The piping between the connection and the check valve shall be provided with an automatic drip in accordance with NFPA 13 and arranged to drain to the outside.

3.4.12 Identification Signs

Signs shall be affixed to each control valve, inspector test valve, main drain, auxiliary drain, test valve, and similar valves as appropriate or as required by NFPA 13 . Hydraulic design data nameplates shall be permanently affixed to each sprinkler riser as specified in NFPA 13 .

3.5 ELECTRICAL WORK

All wiring for supervisory and alarm circuits shall be #14 AWG solid copper installed in metallic tubing or conduit. Wiring color code shall remain uniform throughout the system.

3.6 PIPE COLOR CODE MARKING

Color code mark piping as specified in NFPA 13 and UFC 3-600-01. See Section 09 90 00 PAINTS AND COATINGS for sprinkler pipe painting.

3.7 PRELIMINARY TESTS

The system, including the underground water mains, and the aboveground piping and system components, shall be tested to assure that equipment and components function as intended. Submit proposed procedures for Preliminary Tests, no later than 14 days prior to the proposed start of the tests and proposed date and time to begin the preliminary tests. The underground and aboveground interior piping systems and attached

SECTION 21 13 13.00 10 Page 13 appur t enances subj ect ed t o syst em wor ki ng pr essur e shal l be t est ed i n accor dance wi t h NFPA 13 and NFPA 24. Upon compl et i on of speci f i ed t est s, submi t 3 copi es of t he compl et ed Pr el i mi nar y Test Repor t , no l at er t han 7 days af t er t he compl et i on of t he Test s. The Repor t shal l i ncl ude bot h t he Cont r act or ' s Mat er i al and Test Cer t i f i cat e f or Under gr ound Pi pi ng and t he Cont r act or ' s Mat er i al and Test Cer t i f i cat e f or Abovegr ound Pi pi ng. Al l i t ems i n t he Pr el i mi nar y Test s Repor t shal l be s i gned by t he Fi r e Pr ot ect i on Speci al i s t .

3. 7. 1 Under gr ound Pi pi ng

3. 7. 1. 1 Flushing

Under gr ound pi pi ng shal l be f l ushed i n accor dance wi t h NFPA 24. Thi s i ncl udes t he r equi r ement t o f l ush t he l ead- i n connect i on t o t he f i r e pr ot ect i on syst em at a f l ow r at e not l ess t hat t he cal cul at ed maxi mum wat er demand r at e of t he syst em.

3. 7. 1. 2 Hydr ost at i c Test i ng

New under gr ound pi pi ng shal l be hydr ost at i cal l y t est ed i n accor dance wi t h NFPA 24. The al l owabl e l eakage shal l be measur ed at t he speci f i ed t est pr essur e by pumpi ng f r om a cal i br at ed cont ai ner . The amount of l eakage at t he j oi nt s shal l not exceed 2 quar t s per hour per 100 gasket s or j oi nt s, r egar dl ess of pi pe di amet er .

3. 7. 2 Abovegr ound Pi pi ng

3. 7. 2. 1 Hydr ost at i c Test i ng

Abovegr ound pi pi ng shal l be hydr ost at i cal l y t est ed i n accor dance wi t h NFPA 13 at not l ess t han 200 psi or 50 psi i n excess of maxi mum syst em oper at i ng pr essur e and shal l mai nt ai n t hat pr essur e wi t hout l oss f or 2 hour s. Ther e shal l be no dr op i n gauge pr essur e or v i s i bl e l eakage when t he syst em i s subj ect ed t o t he hydr ost at i c t est . The t est pr essur e shal l be r ead f r om a gauge l ocat ed at t he l ow el evat i on poi nt of t he syst em or por t i on bei ng t est ed.

3. 7. 2. 2 Backf l ow Pr event i on Assembl y For war d Fl ow Test

Each backf l ow pr event i on assembl y shal l be t est ed at syst em f l ow demand, i ncl udi ng al l appl i cabl e hose st r eams, as speci f i ed i n NFPA 13. Pr ovi de al l equi pment and i nst r ument s necessar y t o conduct a compl et e f or war d f l ow t est , i ncl udi ng 2. 5 i nch di amet er hoses, pl aypi pe nozzl es, cal i br at ed pr essur e gauges, pi t ot t ube gauge, pl us al l necessar y suppor t s t o saf el y secur e hoses and nozzl es dur i ng t he t est . At t he syst em demand f l ow, t he pr essur e r eadi ngs and pr essur e dr op ( f r i c t i on) acr oss t he assembl y shal l be r ecor ded. Pr ovi de a met al pl acar d on t he backf l ow pr event i on assembl y t hat l i s t s t he pr essur e r eadi ngs bot h upst r eam and downst r eam of t he assembl y, t ot al pr essur e dr op, and t he syst em t est f l ow r at e. The pr essur e dr op shal l be compar ed t o t he manuf act ur er ' s dat a.

3. 7. 3 Test i ng of Al ar m Devi ces

Each al ar m swi t ch shal l be t est ed by f l owi ng wat er t hr ough t he i nspect or ' s t est connect i on. Each wat er - oper at ed al ar m devi ces shal l be t est ed t o ver i f y pr oper oper at i on.

SECTI ON 21 13 13. 00 10 Page 14

3. 7. 4 Mai n Dr ai n Fl ow Test

Fol l owi ng f l ushi ng of t he under gr ound pi pi ng, a mai n dr ai n t est shal l be made t o ver i f y t he adequacy of t he wat er suppl y. St at i c and r esi dual pr essur es shal l be r ecor ded on t he cer t i f i cat e speci f i ed i n par agr aph SUBMI TTALS. I n addi t i on, a mai n dr ai n t est shal l be conduct ed each t i me af t er a mai n cont r ol val ve i s shut and opened.

3. 8 FI NAL ACCEPTANCE TEST

Begi n t he Fi nal Accept ance Test onl y when t he Pr el i mi nar y Test Repor t has been appr oved. Submi t pr oposed pr ocedur es f or Fi nal Accept ance Test , no l at er t han 14 days pr i or t o t he pr oposed st ar t of t he t est s, and pr oposed dat e and t i me t o begi n t he Test , submi t t ed wi t h t he pr ocedur es.

Not i f i cat i on shal l be pr ovi ded at l east 14 days pr i or t o t he pr oposed st ar t of t he t est . Not i f i cat i on shal l i ncl ude a copy of t he Cont r act or ' s Mat er i al & Test Cer t i f i cat es. The Fi r e Pr ot ect i on Speci al i s t shal l conduct t he Fi nal Accept ance Test and shal l pr ovi de a compl et e demonst r at i on of t he oper at i on of t he syst em. Thi s shal l i ncl ude oper at i on of cont r ol val ves and f l owi ng of i nspect or ' s t est connect i ons t o ver i f y oper at i on of associ at ed wat er f l ow al ar m swi t ches. Af t er oper at i on of cont r ol val ves has been compl et ed, t he mai n dr ai n t est shal l be r epeat ed t o assur e t hat cont r ol val ves ar e i n t he open posi t i on. Submi t as- bui l t shop dr awi ngs, at l east 14 days af t er compl et i on of t he Fi nal Test s, updat ed t o r ef l ect as- bui l t condi t i ons af t er al l r el at ed wor k i s compl et ed. Dr awi ngs shal l be on r epr oduci bl e f ul l - s i ze myl ar f i l m. I n addi t i on, t he r epr esent at i ve shal l have avai l abl e copi es of as- bui l t dr awi ngs and cer t i f i cat es of t est s pr evi ousl y conduct ed. The i nst al l at i on shal l not be consi der ed accept ed unt i l i dent i f i ed di scr epanci es have been cor r ect ed and t est document at i on i s pr oper l y compl et ed and r ecei ved. Submi t 3 copi es of t he compl et ed Fi nal Accept ance Test Repor t no l at er t han 7 days af t er t he compl et i on of t he Fi nal Accept ance Test s. Al l i t ems i n t he Fi nal Accept ance Repor t shal l be s i gned by t he Fi r e Pr ot ect i on Speci al i s t as speci f i ed.

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