Revised and Reissued Spec Section 23 64 26 PICA B12 5NOV25.pdf

Pi cat i nny B12 19152AB

SECTI ON 23 64 26

CHI LLED, CHI LLED- HOT, AND CONDENSER WATER PI PI NG SYSTEMS

08/ 09, CHG 7: 02/ 24

PART 1 GENERAL

1. 1 REFERENCES

The publ i cat i ons l i s t ed bel ow f or m a par t of t hi s speci f i cat i on t o t he ext ent r ef er enced. The publ i cat i ons ar e r ef er r ed t o wi t hi n t he t ext by t he basi c desi gnat i on onl y.

AMERI CAN NATI ONAL STANDARDS I NSTI TUTE ( ANSI )

ANSI Z21. 22/ CSA 4. 4 ( 2015; R 2020) Rel i ef Val ves f or Hot Wat er Suppl y Syst ems

AMERI CAN SOCI ETY OF MECHANI CAL ENGI NEERS ( ASME)

ASME B16. 18 ( 2021) Cast Copper Al l oy Sol der Joi nt Pr essur e Fi t t i ngs

ASME B16. 22 ( 2021) St andar d f or Wr ought Copper and Copper Al l oy Sol der Joi nt Pr essur e Fi t t i ngs

ASME B16. 26 ( 2018) St andar d f or Cast Copper Al l oy Fi t t i ngs f or Fl ar ed Copper Tubes

ASME B31. 9 ( 2020) Bui l di ng Ser vi ces Pi pi ng

ASME B40. 100 ( 2022) Pr essur e Gauges and Gauge At t achment s

ASME BPVC SEC I X ( 2017; Er r at a 2018) BPVC Sect i on I X- Wel di ng, Br azi ng and Fusi ng Qual i f i cat i ons

AMERI CAN SOCI ETY OF SANI TARY ENGI NEERI NG ( ASSE)

ASSE 1003 ( 2020) Per f or mance Requi r ement s f or Wat er Pr essur e Reduci ng Val ves f or Domest i c Wat er Di st r i but i on Syst ems - ( ANSI appr oved 2010)

ASSE 1017 ( 2023) Per f or mance Requi r ement s f or Temper at ur e Act uat ed Mi xi ng Val ves f or Hot Wat er Di st r i but i on Syst ems - ( ANSI appr oved 2010)

AMERI CAN WATER WORKS ASSOCI ATI ON ( AWWA)

AWWA C606 ( 2022) Gr ooved and Shoul der ed Joi nt s

AMERI CAN WELDI NG SOCI ETY ( AWS)

AWS A5. 8/ A5. 8M ( 2019) Speci f i cat i on f or Fi l l er Met al s f or Br azi ng and Br aze Wel di ng

SECTI ON 23 64 26 Page 1

AWS BRH ( 2007; 5t h Ed) Br azi ng Handbook

AWS D1. 1/ D1. 1M ( 2020; Er r at a 1 2021) St r uct ur al Wel di ng Code - St eel

AWS Z49. 1 ( 2021) Saf et y i n Wel di ng and Cut t i ng and Al l i ed Pr ocesses

ASTM I NTERNATI ONAL ( ASTM)

ASTM A53/ A53M ( 2024) St andar d Speci f i cat i on f or Pi pe, St eel , Bl ack and Hot - Di pped, Zi nc- Coat ed, Wel ded and Seaml ess

ASTM A536 ( 1984; R 2019; E 2019) St andar d Speci f i cat i on f or Duct i l e I r on Cast i ngs

ASTM A653/ A653M ( 2023) St andar d Speci f i cat i on f or St eel Sheet , Zi nc- Coat ed ( Gal vani zed) or Zi nc- I r on Al l oy- Coat ed ( Gal vanneal ed) by t he Hot - Di p Pr ocess

ASTM B32 ( 2020) St andar d Speci f i cat i on f or Sol der Met al

ASTM B42 ( 2020) St andar d Speci f i cat i on f or Seaml ess Copper Pi pe, St andar d Si zes

ASTM B62 ( 2017) St andar d Speci f i cat i on f or Composi t i on Br onze or Ounce Met al Cast i ngs

ASTM B75/ B75M ( 2020) St andar d Speci f i cat i on f or Seaml ess Copper Tube

ASTM B88 ( 2022) St andar d Speci f i cat i on f or Seaml ess Copper Wat er Tube

ASTM B117 ( 2019) St andar d Pr act i ce f or Oper at i ng Sal t Spr ay ( Fog) Appar at us

ASTM B813 ( 2016) St andar d Speci f i cat i on f or Li qui d and Past e Fl uxes f or Sol der i ng of Copper and Copper Al l oy Tube

ASTM D520 ( 2000; R 2011) Zi nc Dust Pi gment

ASTM D596 ( 2001; R 2018) St andar d Gui de f or Repor t i ng Resul t s of Anal ysi s of Wat er

ASTM D1384 ( 2005; R 2019) Cor r osi on Test f or Engi ne Cool ant s i n Gl asswar e

ASTM D2000 ( 2018) St andar d Cl assi f i cat i on Syst em f or Rubber Pr oduct s i n Aut omot i ve Appl i cat i ons

ASTM D3308 ( 2012; R 2017) St andar d Speci f i cat i on f or PTFE Resi n Ski ved Tape

SECTI ON 23 64 26 Page 2

ASTM E84 ( 2023) St andar d Test Met hod f or Sur f ace Bur ni ng Char act er i st i cs of Bui l di ng Mat er i al s

ASTM F1007 ( 2018; R 2022) St andar d Speci f i cat i on f or Pi pel i ne Expansi on Joi nt s of t he Packed Sl i p Type f or Mar i ne Appl i cat i on

ASTM F1120 ( 1987; R 2019) St andar d Speci f i cat i on f or Ci r cul ar Met al l i c Bel l ows Type Expansi on Joi nt s f or Pi pi ng Appl i cat i ons

ASTM F1199 ( 2021) St andar d Speci f i cat i on f or Cast ( Al l Temper at ur es and Pr essur es) and Wel ded Pi pe Li ne St r ai ner s ( 150 psi g and 150 degr ees F Maxi mum)

EXPANSI ON JOI NT MANUFACTURERS ASSOCI ATI ON ( EJMA)

EJMA St ds ( 2015) ( 10t h Ed) EJMA St andar ds

HYDRAULI C I NSTI TUTE ( HI )

HI 1. 1- 1. 2 ( 2014) Rot odynami c ( Cent r i f ugal ) Pump f or Nomencl at ur e and Def i ni t i ons

MANUFACTURERS STANDARDI ZATI ON SOCI ETY OF THE VALVE AND FI TTI NGS

I NDUSTRY ( MSS)

MSS SP- 58 ( 2018) Pi pe Hanger s and Suppor t s - Mat er i al s, Desi gn and Manuf act ur e, Sel ect i on, Appl i cat i on, and I nst al l at i on

MSS SP- 67 ( 2022) But t er f l y Val ves

MSS SP- 69 ( 2003; Not i ce 2012) Pi pe Hanger s and Suppor t s - Sel ect i on and Appl i cat i on ( ANSI Appr oved Amer i can Nat i onal St andar d)

MSS SP- 70 ( 2011) Gr ay I r on Gat e Val ves, Fl anged and Thr eaded Ends

MSS SP- 71 ( 2018) Gr ay I r on Swi ng Check Val ves, Fl anged and Thr eaded Ends

MSS SP- 72 ( 2010a) Bal l Val ves wi t h Fl anged or But t - Wel di ng Ends f or Gener al Ser vi ce

MSS SP- 78 ( 2011) Cast I r on Pl ug Val ves, Fl anged and Thr eaded Ends

MSS SP- 80 ( 2019) Br onze Gat e, Gl obe, Angl e and Check Val ves

MSS SP- 85 ( 2011) Gr ay I r on Gl obe & Angl e Val ves Fl anged and Thr eaded Ends

MSS SP- 110 ( 2010) Bal l Val ves Thr eaded, Socket - Wel di ng, Sol der Joi nt , Gr ooved and

SECTI ON 23 64 26 Page 3

Fl ar ed Ends

NATI ONAL ELECTRI CAL MANUFACTURERS ASSOCI ATI ON ( NEMA)

NEMA 250 ( 2020) Encl osur es f or El ect r i cal Equi pment ( 1000 Vol t s Maxi mum)

NEMA MG 1 ( 2021) Mot or s and Gener at or s

NEMA MG 11 ( 1977; R 2012) Ener gy Management Gui de f or Sel ect i on and Use of Si ngl e Phase Mot or s

NATI ONAL FI RE PROTECTI ON ASSOCI ATI ON ( NFPA)

NFPA 90A ( 2024) St andar d f or t he I nst al l at i on of Ai r Condi t i oni ng and Vent i l at i ng Syst ems

1. 2 SYSTEM DESCRI PTI ON

Pr ovi de t he wat er syst ems havi ng t he mi ni mum ser vi ce ( desi gn) t emper at ur e- pr essur e r at i ng i ndi cat ed. Pr ovi s i on of t he pi pi ng syst ems, i ncl udi ng mat er i al s, i nst al l at i on, wor kmanshi p, f abr i cat i on, assembl y, er ect i on, exami nat i on, i nspect i on, and t est i ng shal l be i n accor dance wi t h t he r equi r ed and advi sor y pr ovi s i ons of ASME B31. 9 except as modi f i ed or suppl ement ed by t hi s speci f i cat i on sect i on or desi gn dr awi ngs. Thi s speci f i cat i on sect i on cover s t he wat er syst ems pi pi ng whi ch i s l ocat ed wi t hi n, on, and adj acent t o bui l di ng( s) wi t hi n t he bui l di ng( s) 5 f oot l i ne.

1. 3 SUBMI TTALS

Gover nment appr oval i s r equi r ed f or submi t t al s wi t h a " G" or " S" c l assi f i cat i on. Submi t t al s not havi ng a " G" or " S" c l assi f i cat i on ar e f or i nf or mat i on onl y. When used, a code f ol l owi ng t he " G" c l assi f i cat i on i dent i f i es t he of f i ce t hat wi l l r evi ew t he submi t t al f or t he Gover nment .

Submi t t he f ol l owi ng i n accor dance wi t h Sect i on 01 33 00 SUBMI TTAL

PROCEDURES:

SD- 03 Pr oduct Dat a

Gr ooved Mechani cal Connect i ons For Copper ; G

Cal i br at ed Bal anci ng Val ves; G

Wat er Temper at ur e Mi xi ng Val ve; G

Wat er Temper at ur e Regul at i ng Val ves; G

Wat er Pr essur e Reduci ng Val ve

Pr essur e Rel i ef Val ve

Combi nat i on Pr essur e and Temper at ur e Rel i ef Val ves

Expansi on Joi nt s; G

Pumps; G

Combi nat i on St r ai ner and Pump Suct i on Di f f user

SECTI ON 23 64 26 Page 4

Expansi on Tanks

Ai r Separ at or Tanks

Wat er Tr eat ment Syst ems; G

Pr oposed wat er t r eat ment pl an i ncl udi ng a l ayout , cont r ol scheme, a l i s t of exi st i ng make- up wat er condi t i ons i ncl udi ng t he i t ems l i s t ed i n par agr aph WATER ANALYSI S, a l i s t of chemi cal s, t he pr opor t i on of chemi cal s t o be added, t he f i nal t r eat ed wat er condi t i ons, and a descr i pt i on of envi r onment al concer ns f or handl i ng t he chemi cal s.

SD- 06 Test Repor t s

Pi pi ng Wel ds NDE Repor t

Pr essur e Test s Repor t s; G

Repor t shal l be pr ovi ded i n bound 8- 1/ 2 by 11 i nch bookl et s. I n t he r epor t s, document al l phases of t he t est s per f or med. I ncl ude i ni t i al t est summar i es, al l r epai r s/ adj ust ment s made, and t he f i nal t est r esul t s.

Condenser Wat er Qual i t y Test Repor t s; G

Test r epor t s, each mont h f or a per i od of one year af t er pr oj ect compl et i on, i n bound 8- 1/ 2 by 11 i nch bookl et s. I n t he r epor t s, i dent i f y t he chemi cal composi t i on of t he condenser wat er . Al so i ncl ude t he compar i son of t he manuf act ur er ' s r ecommended oper at i ng condi t i ons f or t he cool i ng t ower and condenser i n r el at i on t o t he condi t i on of t he condenser wat er . Document i n t he r epor t any r equi r ed cor r ect i ve act i on t aken.

One- Year I nspect i on Repor t For Cool i ng Wat er ; G

At t he compl et i on of one year of ser vi ce, i n bound 8- 1/ 2 by 11 i nch bookl et s. I n t he r epor t , i dent i f y t he condi t i on of each cool i ng t ower and condenser . I ncl ude a compar i son of t he condi t i on of t he cool i ng t ower and condenser wi t h t he manuf act ur er ' s r ecommended oper at i ng condi t i ons. I dent i f y al l act i ons t aken by t he Cont r act or and manuf act ur er t o cor r ect def i c i enci es dur i ng t he f i r st year of ser vi ce.

SD- 07 Cer t i f i cat es

Empl oyer ' s Recor d Document s ( For Wel di ng)

Wel di ng Pr ocedur es and Qual i f i cat i ons

Cer t i f i cat es shal l be submi t t ed f or t he f ol l owi ng i t ems showi ng conf or mance wi t h t he r ef er enced st andar ds cont ai ned i n t hi s sect i on.

SECTI ON 23 64 26 Page 5

SD- 08 Manuf act ur er ' s I nst r uct i ons

Lesson pl an f or t he I nst r uct i on Cour se; G

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

Requi r ement s f or dat a packages ar e speci f i ed Sect i on 01 78 23 OPERATI ON AND MAI NTENANCE DATA, except as suppl ement ed and modi f i ed by t hi s speci f i cat i on sect i on.

Submi t spar e par t s dat a f or each di f f er ent i t em of equi pment speci f i ed, wi t h oper at i on and mai nt enance dat a packages. 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, a r ecommended spar e par t s l i s t f or one year of oper at i on, and a l i s t of t he par t s r ecommended by t he manuf act ur er t o be r epl aced on a r out i ne basi s.

Submi t a l i s t of qual i f i ed per manent ser vi ce or gani zat i ons wi t h oper at i on and mai nt enance dat a packages. I ncl ude ser vi ce or gani zat i on addr esses and ser vi ce ar ea or exper t i se. The ser vi ce or gani zat i ons shal l be r easonabl y conveni ent t o t he equi pment i nst al l at i on and be abl e t o r ender sat i sf act or y ser vi ce t o t he equi pment on a r egul ar and emer gency basi s dur i ng t he war r ant y per i od of t he cont r act .

Wat er Tr eat ment Syst ems; G

An oper at i on manual i n bound 8- 1/ 2 by 11 i nch bookl et s l i s t i ng st ep- by- st ep pr ocedur es r equi r ed f or syst em st ar t up, oper at i on, abnor mal shut down, emer gency shut down, and nor mal shut down.

I ncl ude t est i ng pr ocedur es used i n det er mi ni ng wat er qual i t y.

A mai nt enance manual i n bound 8- 1/ 2 by 11 i nch bookl et s l i s t i ng r out i ne mai nt enance pr ocedur es, possi bl e br eakdowns and r epai r s, and a t r oubl e shoot i ng gui de.

Cal i br at ed Bal anci ng Val ves, Dat a Package 3; G

Wat er Temper at ur e Mi xi ng Val ve, Dat a Package 3; G

Wat er Temper at ur e Regul at i ng Val ves, Dat a Package 3; G

Wat er Pr essur e Reduci ng Val ve, Dat a Package 3; G

Pr essur e Rel i ef Val ve, Dat a Package 2; G

Combi nat i on Pr essur e and Temper at ur e Rel i ef Val ves, Dat a Package 2; G

Expansi on Joi nt s, Dat a Package 2; G

Pumps, Dat a Package 3; G

Combi nat i on St r ai ner and Pump Suct i on Di f f user , Dat a Package 2; G

Expansi on Tanks, Dat a Package 2; G

Ai r Separ at or Tanks, Dat a Package 2; G

SECTI ON 23 64 26 Page 6

1. 4 MODI FI CATI ONS TO REFERENCES

I n each of t he publ i cat i ons r ef er r ed t o her ei n, consi der t he advi sor y pr ovi s i ons t o be mandat or y, as t hough t he wor d, " shal l " had been subst i t ut ed f or " shoul d" wher ever i t appear s. I nt er pr et r ef er ences i n t hese publ i cat i ons t o t he " aut hor i t y havi ng j ur i sdi ct i on" , or wor ds of s i mi l ar meani ng, t o mean t he Cont r act i ng Of f i cer .

1. 4. 1 Def i ni t i ons

For t he I nt er nat i onal Code Counci l ( I CC) Codes r ef er enced i n t he cont r act document s, advi sor y pr ovi s i ons shal l be consi der ed mandat or y, t he wor d " shoul d" shal l be i nt er pr et ed as " shal l . " Ref er ence t o t he " code of f i c i al " shal l be i nt er pr et ed t o mean t he " Cont r act i ng Of f i cer . " For Navy owned pr oper t y, r ef er ences t o t he " owner " shal l be i nt er pr et ed t o mean t he " Cont r act i ng Of f i cer . " For l eased f aci l i t i es, r ef er ences t o t he " owner " shal l be i nt er pr et ed t o mean t he " l essor . " Ref er ences t o t he " per mi t hol der " shal l be i nt er pr et ed t o mean t he " Cont r act or . "

1. 4. 2 Admi ni st r at i ve I nt er pr et at i ons

For I CC Codes r ef er enced i n t he cont r act document s, t he pr ovi s i ons of Chapt er 1, " Admi ni st r at or , " do not appl y. These admi ni st r at i ve r equi r ement s ar e cover ed by t he appl i cabl e Feder al Acqui s i t i on Regul at i ons ( FAR) i ncl uded i n t hi s cont r act and by t he aut hor i t y gr ant ed t o t he Of f i cer i n Char ge of Const r uct i on t o admi ni st er t he const r uct i on of t hi s pr oj ect . Ref er ences i n t he I CC Codes t o sect i ons of Chapt er 1, shal l be appl i ed appr opr i at el y by t he Cont r act i ng Of f i cer as aut hor i zed by hi s admi ni st r at i ve cogni zance and t he FAR.

1. 5 SAFETY REQUI REMENTS

Exposed movi ng par t s, par t s t hat pr oduce hi gh oper at i ng t emper at ur e, par t s whi ch may be el ect r i cal l y ener gi zed, and par t s t hat may be a hazar d t o oper at i ng per sonnel shal l be i nsul at ed, f ul l y encl osed, guar ded, or f i t t ed wi t h ot her t ypes of saf et y devi ces. Saf et y devi ces shal l be i nst al l ed so t hat pr oper oper at i on of equi pment i s not i mpai r ed.

1. 6 DELI VERY, STORAGE, AND HANDLI NG

Pr ot ect st or ed i t ems 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. Pr oper pr ot ect i on and car e of al l mat er i al bot h bef or e and dur i ng i nst al l at i on shal l be t he Cont r act or ' s r esponsi bi l i t y . Any mat er i al s f ound t o be damaged shal l be r epl aced at t he Cont r act or ' s expense. Dur i ng i nst al l at i on, cap pi pi ng and si mi l ar openi ngs t o keep out di r t and ot her f or ei gn mat t er . Any por ous mat er i al s f ound t o be cont ami nat ed wi t h mol d or mi l dew wi l l be r epl aced at t he Cont r act or ' s expense. Non- por ous mat er i al s f ound t o be cont ami nat ed wi t h mol d or mi l dew wi l l be di s i nf ect ed and cl eaned pr i or t o i nst al l at i on.

1. 7 PROJECT/ SI TE CONDI TI ONS

1. 7. 1 Ver i f i cat i on of Di mensi ons

The Cont r act or shal l become f ami l i ar wi t h al l det ai l s of t he wor k, ver i f y al l di mensi ons i n t he f i el d, and advi se t he Cont r act i ng Of f i cer of any di scr epancy bef or e per f or mi ng any wor k.

SECTI ON 23 64 26 Page 7

1. 7. 2 Dr awi ngs

Because of t he smal l scal e of t he dr awi ngs, i t i s not possi bl e t o i ndi cat e al l of f set s, f i t t i ngs, and accessor i es t hat may be r equi r ed. The Cont r act or shal l car ef ul l y i nvest i gat e t he pl umbi ng, f i r e pr ot ect i on, el ect r i cal , st r uct ur al and f i ni sh condi t i ons t hat woul d af f ect t he wor k t o be per f or med and shal l ar r ange such wor k accor di ngl y, f ur ni shi ng r equi r ed of f set s, f i t t i ngs, and accessor i es t o meet such condi t i ons.

1. 7. 3 Accessi bi l i t y

I nst al l al l wor k so t hat par t s r equi r i ng per i odi c i nspect i on, oper at i on, mai nt enance, and r epai r ar e r eadi l y accessi bl e. I nst al l conceal ed val ves, expansi on j oi nt s, cont r ol s, damper s, and equi pment r equi r i ng access, i n l ocat i ons f r eel y accessi bl e t hr ough access door s.

PART 2 PRODUCTS

2. 1 STANDARD COMMERCI AL PRODUCTS

Mat er i al s and equi pment shal l be 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 i ng of such pr oduct s, whi ch ar e of a s i mi l ar mat er i al , desi gn and wor kmanshi p. The st andar d pr oduct s shal l have been i n sat i sf act or y commer ci al or i ndust r i al use f or 2 year s pr i or t o bi d openi ng.

The 2 year use shal l i ncl ude appl i cat i ons of equi pment and mat er i al s under s i mi l ar c i r cumst ances and of s i mi l ar s i ze. The 2 year s exper i ence shal l be sat i sf act or i l y compl et ed by a pr oduct whi ch has been sol d or i s of f er ed f or sal e on t he commer ci al mar ket t hr ough adver t i sement s, manuf act ur er ' s cat al ogs, or br ochur es.

Pr oduct s havi ng l ess t han a 2 year f i el d ser vi ce r ecor d shal l be accept abl e i f a cer t i f i ed r ecor d of sat i sf act or y f i el d oper at i on, f or not l ess t han 6000 hour s excl usi ve of t he manuf act ur er ' s f act or y t est s, can be shown. Syst em component s shal l be envi r onment al l y sui t abl e f or t he i ndi cat ed l ocat i ons.

The equi pment i t ems shal l be suppor t ed by ser vi ce or gani zat i ons. These ser vi ce or gani zat i ons shal l be r easonabl y conveni ent t o t he equi pment i nst al l at i on and abl e t o r ender sat i sf act or y ser vi ce t o t he equi pment on a r egul ar and emer gency basi s dur i ng t he war r ant y per i od of t he cont r act .

* * * * * * * * * * * * * * * * * * * * * * * * * * * * * AMENDMENT* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *

2. 2 COPPER TUBI NG

Pr ovi de copper t ubi ng and f i t t i ngs wi t h a ANSI / ASME Cl ass 125 ser vi ce r at i ng, whi ch f or 150 degr ees F. , t he pr essur e r at i ng i s 175 psi g.

2. 2. 1 Tube

Use copper t ube conf or mi ng t o ASTM B88, Type L or M f or abovegr ound t ubi ng, and Type K f or bur i ed t ubi ng.

2. 2. 2 Fi t t i ngs and End Connect i ons ( Sol der and Fl ar ed Joi nt s)

Wr ought copper and br onze sol der j oi nt pr essur e f i t t i ngs, i ncl udi ng uni ons ands f l anges, shal l conf or m t o ASME B16. 22 and ASTM B75/ B75M. Pr ovi de adapt er s as r equi r ed. Cast copper al l oy sol der - j oi nt pr essur e f i t t i ngs , SECTI ON 23 64 26 Page 8 i ncl udi ng uni ons and f l anges, shal l conf or m t o ASME B16. 18. Cast copper al l oy f i t t i ngs f or f l ar ed copper t ube shal l conf or m t o ASME B16. 26 and ASTM B62. ASTM B42 copper pi pe ni ppl es wi t h t hr eaded end connect i ons shal l conf or m t o ASTM B42.

Copper t ubi ng of s i zes l ar ger t han 4 i nches shal l have br azed j oi nt s.

Br ass or br onze adapt er s f or br azed t ubi ng may be used f or connect i ng t ubi ng t o f l anges and t o t hr eaded ends of val ves and equi pment .

Ext r act ed br azed t ee j oi nt s may be used i f pr oduced wi t h an accept abl e t ool and i nst al l ed i n accor dance wi t h t ool manuf act ur er ' s wr i t t en pr ocedur es.

2. 2. 3 Gr ooved Mechani cal Connect i ons For Copper

Ri gi d gr ooved mechani cal connect i ons may onl y be used i n ser vi ceabl e abovegr ound l ocat i ons wher e t he t emper at ur e of t he c i r cul at i ng medi um does not exceed 230 degr ees F. Fl exi bl e gr ooved connect i ons shal l be used onl y as a f l exi bl e connect or wi t h gr ooved pi pe syst em. Unl ess ot her wi se speci f i ed, gr ooved pi pi ng component s shal l meet t he cor r espondi ng cr i t er i a speci f i ed f or t he s i mi l ar wel ded, f l anged, or t hr eaded component speci f i ed her ei n.

Each gr ooved mechani cal j oi nt shal l be a syst em, i ncl udi ng coupl i ng housi ng, gasket , f ast ener s, al l f ur ni shed by t he same manuf act ur er . Joi nt i nst al l at i on shal l be i n compl i ance wi t h j oi nt manuf act ur er ' s wr i t t en i nst r uct i ons.

Gr ooved f i t t i ng and mechani cal coupl i ng housi ng shal l be duct i l e i r on conf or mi ng t o ASTM A536. Pr ovi de gasket s f or use i n gr ooved j oi nt s shal l const r uct ed of mol ded synt het i c pol ymer of pr essur e r esponsi ve desi gn and shal l conf or m t o ASTM D2000 f or c i r cul at i ng medi um up t o 230 degr ees F.

Pr ovi de gr ooved j oi nt s i n conf or mance wi t h AWWA C606.

2. 2. 4 Sol der

Pr ovi de sol der i n conf or mance wi t h ASTM B32, gr ade Sb5, t i n- ant i mony al l oy. Sol der f l ux shal l be l i qui d or past e f or m, non- cor r osi ve and conf or m t o ASTM B813.

2. 2. 5 Br azi ng Fi l l er Met al

Fi l l er met al shal l conf or m t o AWS A5. 8/ A5. 8M, Type BAg- 5 wi t h AWS Type 3 f l ux, except Type BCuP- 5 or BCuP- 6 may be used f or br azi ng copper - t o- copper j oi nt s.

2. 3 VALVES

Pr ovi de val ves wi t h a ANSI / ASME Cl ass 125 ser vi ce r at i ng, whi ch f or 150 degr ees F, t he pr essur e r at i ng i s 175 psi g.

Val ves i n s i zes l ar ger t han 1 i nch and used on st eel pi pe syst ems, may be pr ovi ded wi t h r i gi d gr ooved mechani cal j oi nt ends. Such gr ooved end val ves shal l be subj ect t o t he same r equi r ement s as r i gi d gr ooved mechani cal j oi nt s and f i t t i ngs and, shal l be f ur ni shed by t he same manuf act ur er as t he gr ooved pi pe j oi nt and f i t t i ng syst em.

SECTI ON 23 64 26 Page 9

2. 3. 1 Gat e Val ve

Gat e val ves 2- 1/ 2 i nches and smal l er shal l conf or m t o MSS SP- 80 Cl ass 125 and shal l be br onze wi t h wedge di sc, r i s i ng st em and t hr eaded, sol der ed, or f l anged ends. Gat e val ves 3 i nches and l ar ger shal l conf or m t o MSS SP- 70, Cl ass 125, cast i r on wi t h br onze t r i m, out si de scr ew and yoke, and f l anged or t hr eaded ends.

2. 3. 2 Gl obe and Angl e Val ve

Gl obe and angl e val ves 2- 1/ 2 i nches and smal l er shal l conf or m t o MSS SP- 80, Cl ass 125. Gl obe and angl e val ves 3 i nches and l ar ger shal l conf or m t o MSS SP- 85, Cl ass 125.

2. 3. 3 Check Val ve

Check val ves 2- 1/ 2 i nches and smal l er shal l conf or m t o MSS SP- 80. Check val ves 3 i nches and l ar ger shal l conf or m t o MSS SP- 71, Cl ass 125.

2. 3. 4 But t er f l y Val ve

But t er f l y val ves shal l conf or m t o MSS SP- 67, Type 1 and shal l be ei t her t he waf er or l ug t ype. Val ves smal l er t han 8 i nches shal l have t hr ot t l i ng handl es wi t h a mi ni mum of seven l ocki ng posi t i ons. Val ves 8 i nches and l ar ger shal l have t ot al l y encl osed manual gear oper at or s wi t h adj ust abl e bal ance r et ur n st ops and posi t i on i ndi cat or s.

2. 3. 5 Pl ug Val ve

Pl ug val ves 2 i nches and l ar ger shal l conf or m t o MSS SP- 78, have f l anged or t hr eaded ends, and have cast i r on bodi es wi t h br onze t r i m. Val ves 2 i nches and smal l er shal l be br onze wi t h NPT connect i ons f or bl ack st eel pi pe and br azed connect i ons f or copper t ubi ng. Val ve shal l be l ubr i cat ed, non- l ubr i cat ed, or t et r af l uor oet hyl ene r esi n- coat ed t ype. Val ve shal l be r esi l i ent , doubl e seat ed, t r unni on mount ed wi t h t aper ed l i f t pl ug capabl e of 2- way shut of f . Val ve shal l oper at e f r om f ul l y open t o f ul l y c l osed by r ot at i on of t he handwheel t o l i f t and t ur n t he pl ug. Val ve shal l have weat her pr oof oper at or s wi t h mechani cal posi t i on i ndi cat or s. Val ves 8 i nches or l ar ger shal l be pr ovi ded wi t h manual gear oper at or s wi t h posi t i on i ndi cat or s.

2. 3. 6 Bal l Val ve

Ful l por t desi gn. Bal l val ves 1/ 2 i nch and l ar ger shal l conf or m t o MSS SP- 72 or MSS SP- 110 and shal l be cast i r on or br onze wi t h t hr eaded, sol der ed, or f l anged ends. Val ves 8 i nches or l ar ger shal l be pr ovi ded wi t h manual gear oper at or s wi t h posi t i on i ndi cat or s. Bal l val ves may be pr ovi ded i n l i eu of gat e val ves.

2. 3. 7 Squar e Head Cocks

Pr ovi de copper al l oy or cast - i r on body wi t h copper al l oy pl ugs, sui t abl e f or 125 psi g wat er wor ki ng pr essur e.

2. 3. 8 Cal i br at ed Bal anci ng Val ves

Copper al l oy or cast i r on body, copper al l oy or st ai nl ess i nt er nal wor ki ng par t s. Pr ovi de val ve cal i br at ed so t hat f l ow can be det er mi ned when t he t emper at ur e and pr essur e di f f er ent i al acr oss val ve i s known. Val ve shal l

SECTI ON 23 64 26 Page 10 have an i nt egr al poi nt er whi ch r egi st er s t he degr ee of val ve openi ng.

Val ve shal l f unct i on as a ser vi ce val ve when i n f ul l y c l osed posi t i on.

Val ve shal l be const r uct ed wi t h i nt er nal seal s t o pr event l eakage and shal l be suppl i ed wi t h pr ef or med i nsul at i on.

Pr ovi de val ve bodi es wi t h t apped openi ngs and pi pe ext ensi ons wi t h posi t i ve shut of f val ves out si de of pi pe i nsul at i on. The pi pe ext ensi ons shal l be pr ovi ded wi t h qui ck connect i ng hose f i t t i ngs f or a por t abl e di f f er ent i al pr essur e met er connect i ons t o ver i f y t he pr essur e di f f er ent i al . Pr ovi de met al t ag on each val ve showi ng t he gal l ons per mi nut e f l ow f or each di f f er ent i al pr essur e r eadi ng.

2. 3. 9 Wat er Temper at ur e Mi xi ng Val ve

Val ve, ASSE 1017 f or wat er ser vi ce.

2. 3. 10 Wat er Temper at ur e Regul at i ng Val ves

Pr ovi de copper al l oy body, di r ect act i ng, pi l ot oper at ed, f or t he i nt ended ser vi ce.

2. 3. 11 Wat er Pr essur e Reduci ng Val ve

Val ve, ASSE 1003 f or wat er ser vi ce, copper al l oy body.

2. 3. 12 Pr essur e Rel i ef Val ve

Val ve shal l pr event excessi ve pr essur e i n t he pi pi ng syst em when t he pi pi ng syst em r eaches i t s maxi mum heat bui l dup. Val ve, ANSI Z21. 22/ CSA 4. 4 and shal l have cast i r on bodi es wi t h cor r osi on r esi st ant i nt er nal wor ki ng par t s. The di schar ge pi pe f r om t he r el i ef val ve shal l be t he s i ze of t he val ve out l et unl ess ot her wi se i ndi cat ed.

2. 3. 13 Combi nat i on Pr essur e and Temper at ur e Rel i ef Val ves

ANSI Z21. 22/ CSA 4. 4, copper al l oy body, aut omat i c r e- seat i ng, t est l ever , and di schar ge capaci t y based on AGA t emper at ur e st eam r at i ng.

2. 3. 14 Fl oat Val ve

Angl e pat t er n and or Gl obe pat t er n. Val ve bodi es 3 i nches nomi nal pi pe s i ze and smal l er shal l be br onze. Val ve bodi es l ar ger t han 3 i nches shal l be cast i r on or br onze. St eel par t s shal l be cor r osi on r esi st ant . Wher e f l oat r ods ar e ext ended f or t ank appl i cat i ons, ext ensi on shal l be pr oper l y suppor t ed and gui ded t o avoi d bendi ng of f l oat r od or st r essi ng of val ve pi l ot l i nkage.

2. 3. 15 Dr ai n Val ves

Val ves, MSS SP- 80 gat e val ves. Val ve shal l be manual l y- oper at ed, 3/ 4 i nch pi pe si ze and above wi t h a t hr eaded end connect i on. Pr ovi de val ve wi t h a wat er hose ni ppl e adapt er . Fr eeze- pr oof t ype val ves shal l be pr ovi ded i n i nst al l at i ons exposed t o f r eezi ng t emper at ur es.

2. 3. 16 Ai r Vent i ng Val ves

Manual l y- oper at ed gener al ser vi ce t ype ai r vent i ng val ves, br ass or br onze val ves t hat ar e f ur ni shed wi t h t hr eaded pl ugs or caps. Aut omat i c t ype ai r vent i ng shal l be t he bal l - f l oat t ype wi t h br ass/ br onze or br ass bodi es, SECTI ON 23 64 26 Page 11

300 ser i es cor r osi on- r esi st ant st eel f l oat , l i nkage and r emovabl e seat .

Ai r vent i ng val ves on wat er coi l s shal l have not l ess t han 1/ 8 i nch t hr eaded end connect i ons. Ai r vent i ng val ves on wat er mai ns shal l have not l ess t han 3/ 4 i nch t hr eaded end connect i ons. Ai r vent i ng val ves on al l ot her appl i cat i ons shal l have not l ess t han 1/ 2 i nch t hr eaded end connect i ons.

2. 3. 17 Vacuum Rel i ef Val ves

ANSI Z21. 22/ CSA 4. 4

2. 4 PI PI NG ACCESSORI ES

2. 4. 1 St r ai ner

St r ai ner , ASTM F1199, except as modi f i ed and suppl ement ed i n t hi s speci f i cat i on. St r ai ner shal l be t he c l eanabl e, basket or " Y" t ype, t he same si ze as t he pi pel i ne. St r ai ner bodi es shal l be f abr i cat ed of cast i r on wi t h bot t oms dr i l l ed, and t apped. Pr ovi de bl owof f out l et wi t h pi pe ni ppl e, gat e val ve, and di schar ge pi pe ni ppl e. The bodi es shal l have ar r ows cl ear l y cast on t he si des i ndi cat i ng t he di r ect i on of f l ow.

Pr ovi de st r ai ner wi t h r emovabl e cover and sedi ment scr een. The scr een shal l be made of mi ni mum 22 gauge cor r osi on- r esi st ant st eel , wi t h smal l per f or at i ons number i ng not l ess t han 400 per squar e i nch t o pr ovi de a net f r ee ar ea t hr ough t he basket of at l east 3. 30 t i mes t hat of t he ent er i ng pi pe. The f l ow shal l be i nt o t he scr een and out t hr ough t he per f or at i ons.

2. 4. 2 Cycl oni c Separ at or

Met al - bodi ed, wi t h r emoval capabi l i t y of r emovi ng sol i ds 45 mi cr ons/ 325 mesh i n s i ze and heavi er t han 1. 20 speci f i c gr avi t y, maxi mum pr essur e dr op of 5 psi d, wi t h c l eanout connect i on.

2. 4. 3 Combi nat i on St r ai ner and Pump Suct i on Di f f user

Angl e t ype body wi t h r emovabl e st r ai ner basket and i nt er nal st r ai ght eni ng vanes, a suct i on pi pe suppor t , and a bl owdown out l et and pl ug. St r ai ner shal l be i n accor dance wi t h ASTM F1199, except as modi f i ed and suppl ement ed by t hi s speci f i cat i on. Uni t body shal l have ar r ows cl ear l y cast on t he si des i ndi cat i ng t he di r ect i on of f l ow.

St r ai ner scr een shal l be made of mi ni mum 22 gauge cor r osi on- r esi st ant st eel , wi t h smal l per f or at i ons number i ng not l ess t han 400 per squar e i nch t o pr ovi de a net f r ee ar ea t hr ough t he basket of at l east 3. 30 t i mes t hat of t he ent er i ng pi pe. Fl ow shal l be i nt o t he scr een and out t hr ough t he per f or at i ons. Pr ovi de an auxi l i ar y di sposabl e f i ne mesh st r ai ner whi ch shal l be r emoved 30 days af t er st ar t - up. Pr ovi de war ni ng t ag f or oper at or i ndi cat i ng schedul ed dat e f or r emoval .

Casi ng shal l have connect i on s i zes t o mat ch pump suct i on and pi pe si zes, and be pr ovi ded wi t h adj ust abl e suppor t f oot or suppor t f oot boss t o r el i eve pi pi ng st r ai ns at pump suct i on. Pr ovi de uni t casi ng wi t h bl owdown por t and pl ug. Pr ovi de a magnet i c i nser t t o r emove debr i s f r om syst em.

2. 4. 4 Fl exi bl e Pi pe Connect or s

Pr ovi de f l exi bl e br onze or st ai nl ess st eel pi pi ng connect or s wi t h s i ngl e br ai d. Equi p f l anged assembl i es wi t h l i mi t bol t s t o r est r i ct maxi mum

SECTI ON 23 64 26 Page 12 t r avel t o t he manuf act ur er ' s st andar d l i mi t s. Unl ess ot her wi se i ndi cat ed, t he l engt h of t he f l exi bl e connect or s shal l be as r ecommended by t he manuf act ur er f or t he ser vi ce i nt ended. I nt er nal s l eeves or l i ner s, compat i bl e wi t h c i r cul at i ng medi um, shal l be pr ovi ded when r ecommended by t he manuf act ur er . Pr ovi de cover s t o pr ot ect t he bel l ows wher e i ndi cat ed.

2. 4. 5 Pr essur e and Vacuum Gauges

Gauges, ASME B40. 100 wi t h t hr ot t l i ng t ype needl e val ve or a pul sat i on dampener and shut - of f val ve. Pr ovi de gauges wi t h 4. 5 i nch di al , br ass or al umi num case, br onze t ube, and si phon. Gauge shal l have a r ange f r om 0 psi g t o appr oxi mat el y 1. 5 t i mes t he maxi mum syst em wor ki ng pr essur e. Each gauge r ange shal l be sel ect ed so t hat at nor mal oper at i ng pr essur e, t he needl e i s wi t hi n t he mi ddl e- t hi r d of t he r ange.

2. 4. 6 Temper at ur e Gauges

Temper at ur e gauges, shal l be t he i ndust r i al dut y t ype and be pr ovi ded f or t he r equi r ed t emper at ur e r ange. Pr ovi de gauges wi t h f i xed t hr ead connect i on, di al f ace gasket ed wi t hi n t he case; and an accur acy wi t hi n 2 per cent of scal e r ange. Gauges shal l have Fahr enhei t scal e i n 2 degr ee gr aduat i ons scal e ( bl ack number s) on a whi t e f ace. The poi nt er shal l be adj ust abl e. Ri gi d st em t ype t emper at ur e gauges shal l be pr ovi ded i n t her mal wel l s l ocat ed wi t hi n 5 f eet of t he f i ni shed f l oor . Uni ver sal adj ust abl e angl e t ype or r emot e el ement t ype t emper at ur e gauges shal l be pr ovi ded i n t her mal wel l s l ocat ed 5 t o 7 f eet above t he f i ni shed f l oor or i n l ocat i ons i ndi cat ed. Remot e el ement t ype t emper at ur e gauges shal l be pr ovi ded i n t her mal wel l s l ocat ed 7 f eet above t he f i ni shed f l oor or i n l ocat i ons i ndi cat ed.

2. 4. 6. 1 St em Cased- Gl ass

St em cased- gl ass case shal l be pol i shed st ai nl ess st eel or cast al umi num, 9 i nches l ong, wi t h c l ear acr yl i c l ens, and non- mer cur y f i l l ed gl ass t ube wi t h i ndi cat i ng- f l ui d col umn.

2. 4. 6. 2 Bi met al l i c Di al

Bi met al l i c di al t ype case shal l be not l ess t han 3- 1/ 2 i nches, st ai nl ess st eel , and shal l be her met i cal l y seal ed wi t h c l ear acr yl i c l ens.

Bi met al l i c el ement shal l be s i l i cone dampened and uni t f i t t ed wi t h ext er nal cal i br at or adj ust ment .

2. 4. 6. 3 Li qui d- , Sol i d- , and Vapor - Fi l l ed Di al

Li qui d- , sol i d- , and vapor - f i l l ed di al t ype cases shal l be not l ess t han 3- 1/ 2 i nches, st ai nl ess st eel or cast al umi num wi t h c l ear acr yl i c l ens.

Fi l l shal l be nonmer cur y, sui t abl e f or encount er ed cr oss- ambi ent s, and connect i ng capi l l ar y t ubi ng shal l be doubl e- br ai ded br onze.

2. 4. 6. 4 Ther mal Wel l

Ther mal wel l shal l be i dent i cal s i ze, 1/ 2 or 3/ 4 i nch NPT connect i on, br ass or st ai nl ess st eel . Wher e t est wel l s ar e i ndi cat ed, pr ovi de capt i ve pl ug- f i t t ed t ype 1/ 2 i nch NPT connect i on sui t abl e f or use wi t h ei t her engr aved st em or st andar d separ abl e socket t her momet er or t her most at .

Mer cur y shal l not be used i n t her momet er s. Ext ended neck t her mal wel l s shal l be of suf f i c i ent l engt h t o c l ear i nsul at i on t hi ckness by 1 i nch.

SECTI ON 23 64 26 Page 13

2. 4. 7 Pi pe Hanger s, I nser t s, and Suppor t s

Pi pe hanger s, i nser t s, gui des, and suppor t s: t o MSS SP- 58 and MSS SP- 69.

I f f er r ous mat er i al s ar e ut i l i zed pr ovi de hot - di pped gal vani zed hanger s, i nser t s and suppor t s.

2. 4. 8 Escut cheons

Pr ovi de one pi ece or spl i t hi nge met al pl at es f or pi pi ng ent er i ng f l oor s, wal l s, and cei l i ngs i n exposed spaces. Secur e pl at es i n pl ace by i nt er nal spr i ng t ensi on or set scr ews. Pr ovi de pol i shed st ai nl ess st eel pl at es or chr omi um- pl at ed f i ni sh on copper al l oy pl at es i n f i ni shed spaces. Pr ovi de pai nt f i ni sh on met al pl at es i n unf i ni shed spaces.

2. 4. 9 Expansi on Joi nt s

2. 4. 9. 1 Sl i p- Tube Type

Sl i p- t ube expansi on j oi nt s, ASTM F1007, Cl ass I or I I . Joi nt s shal l be pr ovi ded wi t h i nt er nal l y- ext er nal l y al i gnment gui des, i nj ect ed semi - pl ast i c packi ng, and ser vi ce out l et s. End connect i ons shal l be f l anged or bevel ed f or wel di ng as i ndi cat ed. I ni t i al set t i ngs shal l be made i n accor dance wi t h t he manuf act ur er ' s r ecommendat i ons t o compensat e f or ambi ent t emper at ur e at t i me of i nst al l at i on. Pi pe al i gnment gui des shal l be i nst al l ed as r ecommended by t he j oi nt manuf act ur er .

2. 4. 9. 2 Fl exi bl e Bal l Type

Fl exi bl e bal l expansi on j oi nt s shal l be capabl e of 360 degr ees r ot at i on pl us 15 degr ees angul ar f l ex movement . Joi nt s shal l be const r uct ed of car bon st eel wi t h t he ext er i or spher i cal sur f ace of car bon st eel bal l s pl at ed wi t h a mi ni mum 5 mi l s of har d chr ome i n accor dance wi t h EJMA St ds.

Joi nt end connect i ons shal l be t hr eaded f or pi pi ng 2 i nches or smal l er .

Joi nt end connect i ons l ar ger t han 2 i nches shal l be gr ooved, f l anged, or bevel ed f or wel di ng. Pr ovi de j oi nt wi t h pr essur e- mol ded composi t i on gasket s sui t abl e f or cont i nuous oper at i on at t wi ce desi gn t emper at ur e.

2. 4. 9. 3 Bel l ows Type

Bel l ows expansi on t ype j oi nt s, ASTM F1120 wi t h Type 304 st ai nl ess st eel cor r ugat ed bel l ows, r ei nf or ced wi t h equal i z i ng r i ngs, i nt er nal s l eeves, and ext er nal pr ot ect i ve cover s. Joi nt end connect i ons shal l be gr ooved, f l anged, or bevel ed f or wel di ng. Gui di ng of pi pi ng on bot h s i des of expansi on j oi nt shal l be i n accor dance wi t h t he publ i shed r ecommendat i ons of t he manuf act ur er of t he expansi on j oi nt .

2. 5 PUMPS

Pumps shal l be t he el ect r i cal l y dr i ven, non- over l oadi ng, cent r i f ugal t ype whi ch conf or m t o HI 1. 1- 1. 2. Pumps shal l be sel ect ed at or wi t hi n 5 per cent of peak ef f i c i ency. Pump cur ve shal l r i se cont i nuousl y f r om maxi mum capaci t y t o shut of f . Pump mot or shal l conf or m t o NEMA MG 1, be t ot al l y encl osed, and have suf f i c i ent hor sepower f or t he ser vi ce r equi r ed. Pump mot or shal l have t he r equi r ed capaci t y t o pr event over l oadi ng wi t h pump oper at i ng at any poi nt on i t s char act er i st i c cur ve.

Pump speed shal l not exceed 3, 600 r pm, except wher e t he pump head i s l ess t han 60 f eet of wat er , t he pump speed shal l not exceed 1, 750 r pm. Pump mot or shal l be equi pped wi t h an acr oss- t he- l i ne magnet i c cont r ol l er i n a NEMA 250, Type 1 encl osur e wi t h " START- STOP" swi t ch i n t he cover .

SECTI ON 23 64 26 Page 14

2. 5. 1 Const r uct i on

Each pump casi ng shal l be desi gned t o wi t hst and t he di schar ge head speci f i ed pl us t he st at i c head on syst em pl us 50 per cent of t he t ot al , but not l ess t han 125 psi g. Pump casi ng and bear i ng housi ng shal l be c l ose gr ai ned cast i r on. Hi gh poi nt s i n t he casi ng shal l be pr ovi ded wi t h manual ai r vent s; l ow poi nt s shal l be pr ovi ded wi t h dr ai n pl ugs. Pr ovi de t hr eaded suct i on and di schar ge pr essur e gage t appi ng wi t h squar e- head pl ugs.

I mpel l er shal l be st at i cal l y and dynami cal l y bal anced. I mpel l er , i mpel l er wear i ng r i ngs, gl ands, casi ng wear r i ngs, and shaf t s l eeve shal l be br onze. Shaf t shal l be car bon or al l oy st eel , t ur ned and gr ound.

Bear i ngs shal l be bal l - bear i ngs, r ol l er - bear i ngs, or oi l - l ubr i cat ed br onze- sl eeve t ype bear i ngs, and be ef f i c i ent l y seal ed or i sol at ed t o pr event l oss of oi l or ent r ance of di r t or wat er .

Cl ose- coupl ed pump shal l be pr ovi ded wi t h i nt egr al l y cast or f abr i cat ed st eel f eet wi t h bol t hol es f or secur i ng f eet t o suppor t i ng sur f ace. Cl ose-coupl ed pumps shal l be pr ovi ded wi t h dr i p pocket s and t apped openi ngs.

Pump shal l be accessi bl e f or ser vi c i ng wi t hout di st ur bi ng pi pi ng connect i ons. Shaf t seal s shal l be mechani cal - seal s or st uf f i ng- box t ype.

2. 5. 2 Mechani cal Shaf t Seal s

Seal s shal l be s i ngl e, i nsi de mount ed, end- f ace- el ast omer bel l ows t ype wi t h st ai nl ess st eel spr i ng, br ass or st ai nl ess st eel seal head, car bon r ot at i ng f ace, and t ungst en car bi de or cer ami c seal i ng f ace. Gl ands shal l be br onze and of t he wat er - f l ush desi gn t o pr ovi de l ubr i cat i on f l ush acr oss t he f ace of t he seal . Bypass l i ne f r om pump di schar ge t o f l ush connect i on i n gl and shal l be pr ovi ded, wi t h f i l t er or cycl one par t i c l e separ at or i n l i ne.

2. 5. 3 St uf f i ng- Box Type Seal s

St uf f i ng box shal l i ncl ude mi ni mum f our r ows of squar e, i mpr egnat ed TFE ( Tef l on) or gr aphi t e cor d packi ng and a br onze spl i t - l ant er n r i ng.

Packi ng gl and shal l be br onze i nt er l ocki ng spl i t t ype.

2. 6 EXPANSI ON TANKS

Tank shal l be wel ded st eel , const r uct ed f or , and t est ed t o pr essur e- t emper at ur e r at i ng of 125 psi at 150 degr ees F. Pr ovi de t anks pr echar ged t o t he mi ni mum oper at i ng pr essur e. Tank shal l have a r epl aceabl e pol ypr opyl ene or but yl l i ned di aphr agm whi ch keeps t he ai r char ge separ at ed f r om t he wat er ; shal l be t he capt i ve ai r t ype.

Tanks shal l accommodat e expanded wat er of t he syst em gener at ed wi t hi n t he nor mal oper at i ng t emper at ur e r ange, l i mi t i ng t hi s pr essur e i ncr ease at al l component s i n t he syst em t o t he maxi mum al l owabl e pr essur e at t hose component s. Each t ank ai r chamber shal l be f i t t ed wi t h a dr ai n, f i l l , an ai r char gi ng val ve, and syst em connect i ons. Tank shal l be suppor t ed by st eel l egs or bases f or ver t i cal i nst al l at i on or st eel saddl es f or hor i zont al i nst al l at i ons. The onl y ai r i n t he syst em shal l be t he per manent seal ed- i n ai r cushi on cont ai ned wi t hi n t he expansi on t ank.

SECTI ON 23 64 26 Page 15

2. 7 AI R SEPARATOR TANKS

Ext er nal ai r separ at i on t ank shal l have an i nt er nal desi gn const r uct ed of st ai nl ess st eel and sui t abl e f or cr eat i ng t he r equi r ed vor t ex and subsequent ai r separ at i on. Tank shal l be st eel , const r uct ed f or , and t est ed t o pr essur e- t emper at ur e r at i ng of 125 psi at 150 degr ees F. Tank shal l have t angent i al i nl et s and out l et s connect i ons, t hr eaded f or 2 i nches and smal l er and f l anged f or s i zes 2- 1/ 2 i nches and l ar ger . Ai r r el eased f r om a t ank shal l be vent ed as i ndi cat ed. Tank shal l be pr ovi ded wi t h a bl ow- down connect i on.

2. 8 WATER TREATMENT SYSTEMS

When wat er t r eat ment i s speci f i ed, t he use of chemi cal - t r eat ment pr oduct s cont ai ni ng equi val ent chr omi um ( CPR) i s pr ohi bi t ed.

2. 8. 1 Wat er Anal ysi s

Condi t i ons of make- up wat er t o be suppl i ed t o t he condenser and chi l l ed wat er syst ems wer e r epor t ed i n accor dance wi t h ASTM D596 and ar e as f ol l ows:

Dat e of Sampl e

Temper at ur e degr ees F

Si l i ca ( Si no 2) pp ( mg/ 1)

I nsol ubl e pp ( mg/ 1)

I r on and Al umi num Oxi des pp ( mg/ 1)

Cal ci um ( Ca) pp ( mg/ 1)

Magnesi um ( Mg) pp ( mg/ 1)

Sodi um and Pot assi um ( Nan and AK) pp ( mg/ 1)

Car bonat e ( HO 3) pp ( mg/ 1)

Sul f at e ( SO 4) pp ( mg/ 1)

Chl or i de ( JCL) pp ( mg/ 1)

Ni t r at e ( NO 3 pp ( mg/ 1)

Tur bi di t y uni t pH

Resi dual Chl or i ne pp ( mg/ 1)

Tot al Al kal i ni t y PM ( me/ 1

SECTI ON 23 64 26 Page 16

Non- Car bonat e Har dness PM ( me/ 1

Tot al Har dness PM ( me/ 1

Di ssol ved Sol i ds pp ( mg/ 1)

Fl uor i ne pp ( mg/ 1)

Conduct i v i t y McMahon/ cm

2. 8. 2 Chi l l ed and Wat er

Wat er t o be used i n t he chi l l ed wat er syst em shal l be t r eat ed t o mai nt ai n t he condi t i ons r ecommended by t hi s speci f i cat i on as wel l as t he r ecommendat i ons f r om t he manuf act ur er s of t he condenser and evapor at or coi l s. Chemi cal s shal l meet al l r equi r ed f eder al , st at e, and l ocal envi r onment al r egul at i ons f or t he t r eat ment of evapor at or coi l s and di r ect di schar ge t o t he sani t ar y sewer .

2. 8. 3 Gl ycol Sol ut i on

See pl ans f or gl ychol per cent concent r at i on by vol ume of i ndust r i al gr ade pr opyl ene gl ycol shal l be pr ovi ded i n t he chi l l ed wat er . The gl ycol shal l be t est ed i n accor dance wi t h ASTM D1384 wi t h l ess t han 0. 5 mi l s penet r at i on per year f or al l syst em met al s. The gl ycol shal l cont ai n cor r osi on i nhi bi t or s. Si l i cat e based i nhi bi t or s shal l not be used. The sol ut i on shal l be compat i bl e wi t h pump seal s, ot her el ement s of t he syst em, and wat er t r eat ment chemi cal s used wi t hi n t he syst em.

2. 8. 4 Wat er Tr eat ment Ser vi ces

The ser vi ces of a company r egul ar l y engaged i n t he t r eat ment of condenser and chi l l ed wat er syst ems shal l be used t o det er mi ne t he cor r ect chemi cal s r equi r ed, t he concent r at i ons r equi r ed, and t he wat er t r eat ment equi pment s i zes and f l ow r at es r equi r ed. The company shal l mai nt ai n t he chemi cal t r eat ment and pr ovi de al l chemi cal s r equi r ed f or t he condenser and chi l l ed wat er syst ems f or a per i od of 1 year f r om t he dat e of occupancy. The chemi cal t r eat ment and ser vi ces pr ovi ded over t he 1 year per i od shal l meet t he r equi r ement s of t hi s speci f i cat i on as wel l as t he r ecommendat i ons f r om t he manuf act ur er s of t he condenser and evapor at or coi l s. Aci d t r eat ment and pr opr i et ar y chemi cal s shal l not be used.

2. 8. 5 Chi l l ed Wat er Syst em

A shot f eeder shal l be pr ovi ded on t he chi l l ed wat er pi pi ng as i ndi cat ed.

Si ze and capaci t y of f eeder shal l be based on l ocal r equi r ement s and wat er anal ysi s. The f eeder shal l be f ur ni shed wi t h an ai r vent , gauge gl ass, f unnel , val ves, f i t t i ngs, and pi pi ng.

2. 9 ELECTRI CAL WORK

Pr ovi de mot or s, cont r ol l er s, i nt egr al di sconnect s, cont act or s, and cont r ol s wi t h t hei r r espect i ve pi eces of equi pment , except cont r ol l er s i ndi cat ed as par t of mot or cont r ol cent er s. Pr ovi de el ect r i cal equi pment , i ncl udi ng mot or s and wi r i ng, as speci f i ed i n Sect i on 26 20 00 I NTERI OR DI STRI BUTI ON SYSTEM. Manual or aut omat i c cont r ol and pr ot ect i ve or s i gnal devi ces r equi r ed f or t he oper at i on speci f i ed and cont r ol wi r i ng r equi r ed f or cont r ol s and devi ces speci f i ed, but not shown, shal l be pr ovi ded. For

SECTI ON 23 64 26 Page 17 packaged equi pment , t he manuf act ur er shal l pr ovi de cont r ol l er s i ncl udi ng t he r equi r ed moni t or s and t i med r est ar t .

Pr ovi de hi gh ef f i c i ency t ype, s i ngl e- phase, f r act i onal - hor sepower al t er nat i ng- cur r ent mot or s, i ncl udi ng mot or s t hat ar e par t of a syst em, i n accor dance wi t h NEMA MG 11.

Pr ovi de pol yphase, squi r r el - cage medi um i nduct i on mot or s, i ncl udi ng mot or s t hat ar e par t of a syst em, t hat meet t he ef f i c i ency r at i ngs f or pr emi um ef f i c i ency mot or s i n accor dance wi t h NEMA MG 1. Pr ovi de mot or s i n accor dance wi t h NEMA MG 1 and of suf f i c i ent s i ze t o dr i ve t he l oad at t he speci f i ed capaci t y wi t hout exceedi ng t he namepl at e r at i ng of t he mot or .

Mot or s shal l be r at ed f or cont i nuous dut y wi t h t he encl osur e speci f i ed.

Mot or dut y r equi r ement s shal l al l ow f or maxi mum f r equency st ar t - st op oper at i on and mi ni mum encount er ed i nt er val bet ween st ar t and st op. Mot or t or que shal l be capabl e of accel er at i ng t he connect ed l oad wi t hi n 20 seconds wi t h 80 per cent of t he r at ed vol t age mai nt ai ned at mot or t er mi nal s dur i ng one st ar t i ng per i od. Pr ovi de mot or st ar t er s compl et e wi t h t her mal over l oad pr ot ect i on and ot her necessar y appur t enances. Mot or bear i ngs shal l be f i t t ed wi t h gr ease suppl y f i t t i ngs and gr ease r el i ef t o out si de of t he encl osur e.

Wher e t wo- speed or var i abl e- speed mot or s ar e i ndi cat ed, sol i d- st at e var i abl e- speed cont r ol l er s may be pr ovi ded t o accompl i sh t he same f unct i on. Use sol i d- st at e var i abl e- speed cont r ol l er s f or mot or s r at ed 10 hp or l ess and adj ust abl e f r equency dr i ves f or l ar ger mot or s.

2. 10 PAI NTI NG OF NEW EQUI PMENT

New equi pment pai nt i ng shal l be f act or y appl i ed or shop appl i ed, and shal l be as speci f i ed her ei n, and pr ovi ded under each i ndi v i dual sect i on.

2. 10. 1 Fact or y Pai nt i ng Syst ems

Manuf act ur er ' s st andar d f act or y pai nt i ng syst ems may be pr ovi ded. The f act or y pai nt i ng syst em appl i ed wi l l wi t hst and 125 hour s i n a sal t - spr ay f og t est , except t hat equi pment l ocat ed out door s shal l wi t hst and 500 hour s i n a sal t - spr ay f og t est .

Sal t - spr ay f og t est shal l be i n accor dance wi t h ASTM B117, and f or t hat t est , t he accept ance cr i t er i a shal l be as f ol l ows: i mmedi at el y af t er compl et i on of t he t est , t he pai nt shal l show no si gns of bl i s t er i ng, wr i nkl i ng, or cr acki ng, and no l oss of 0. 125 i nch on ei t her s i de of t he scr at ch mar k. The f i l m t hi ckness of t he f act or y pai nt i ng syst em appl i ed on t he equi pment shal l not be l ess t han t he f i l m t hi ckness used on t he t est speci men.

I f manuf act ur er ' s st andar d f act or y pai nt i ng syst em i s bei ng pr oposed f or use on sur f aces subj ect t o t emper at ur es above 120 degr ees F, t he f act or y pai nt i ng syst em shal l be desi gned f or t he t emper at ur e ser vi ce.

2. 10. 2 Shop Pai nt i ng Syst ems f or Met al Sur f aces

Cl ean, r et r eat , pr i me and pai nt met al sur f aces; except al umi num sur f aces need not be pai nt ed. Appl y coat i ngs t o c l ean dr y sur f aces. Cl ean t he sur f aces t o r emove dust , di r t , r ust , oi l and gr ease by wi r e br ushi ng and sol vent degr easi ng pr i or t o appl i cat i on of pai nt , except met al sur f aces subj ect t o t emper at ur es i n excess of 120 degr ees F shal l be c l eaned t o

SECTI ON 23 64 26 Page 18 bar e met al .

Wher e hot - di p gal vani zed st eel has been cut , r esul t i ng sur f aces wi t h no gal vani z i ng shal l be coat ed wi t h a z i nc- r i ch coat i ng conf or mi ng t o ASTM D520, Type I .

Wher e mor e t han one coat…