ATTACHMENT_1_NASA_IDF_FINAL_Specifications_Vol_2_Section_23_22_26_revised.pdf_-_kms.pdf

NASA Goddar d Space Fl i ght Cent er Fi nal Submi ssi on I nst r ument Devel opment Faci l i t y December 8, 2016

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STEAM SYSTEM AND TERMI NAL UNI TS

11/15

PART 1 GENERAL

1. 1 RELATED DOCUMENTS

Dr awi ngs and gener al pr ovi s i ons of t he Cont r act , i ncl udi ng Gener al and Suppl ement ar y Condi t i ons and ot her Di v i s i on 01 Speci f i cat i on Sect i ons, appl y t o t hi s Sect i on.

1. 2 SUMMARY

Thi s Sect i on i nc l udes r equi r ement s and ot her cr i t er i a f or st eam and condensat e pi pi ng, conver t or s, and condensat e r et ur n uni t s used f or heat i ng wi t hi n t he bui l di ng.

1. 3 RELATED SECTI ONS

Rel at ed Sect i ons i ncl ude t he f ol l owi ng:

1. Di v i s i on 23 Sect i on 23 03 00 " Basi c Mechani cal Mat er i al s and Methods."

2. Di v i s i on 23 Sect i on 23 05 15 " Common Pi pi ng For HVAC. "

3. Di v i s i on 23 Sect i on 23 05 93 " Test i ng, Adj ust i ng and Bal anci ng f or

HVAC."

4. Di v i s i on 23 Sect i on 23 21 13 " Low Temper at ur e Wat er ( LTW) Heat i ng System."

5. Di v i s i on 23 Sect i on 23 22 13 " St eam Tr aps. "

6. Di v i s i on 23 Sect i on 23 22 23 " St eam Condensat e Pumps. "

1. 4 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 WELDI NG SOCI ETY ( AWS)

AWS Z49. 1 ( 2005) Saf et y i n Wel di ng and Cut t i ng and Al l i ed Pr ocesses

ASME I NTERNATI ONAL ( ASME)

ASME A13. 1 ( 2015) Scheme f or t he I dent i f i cat i on of Pi pi ng Syst ems

ASME B1. 1 ( 2003; R 2008) Uni f i ed I nch Scr ew Thr eads ( UN and UNR Thr ead For m)

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ASME B1. 20. 1 ( 2013) Pi pe Thr eads, Gener al Pur pose ( I nch)

ASME B16. 3 ( 2011) Mal l eabl e I r on Thr eaded Fi t t i ngs, Cl asses 150 and 300

ASME B16. 5 ( 2013) Pi pe Fl anges and Fl anged Fi t t i ngs:

NPS 1/ 2 Thr ough NPS 24 Met r i c/ I nch St andar d

ASME B16. 9 ( 2012) St andar d f or Fact or y- Made Wr ought St eel But t wel di ng Fi t t i ngs

ASME B16. 11 ( 2011) For ged Fi t t i ngs, Socket - Wel di ng and Threaded

ASME B16. 20 ( 2007) Met al l i c Gasket s f or Pi pe Fl anges - Ri ng- Joi nt , Spi r al Wound, and Jacket ed

ASME B16. 21 ( 2011) Nonmet al l i c Fl at Gasket s f or Pi pe Flanges

ASME B16. 24 ( 2011) Cast Copper Al l oy Pi pe Fl anges and Fl anged Fi t t i ngs: Cl asses 150, 300, 600, 900, 1500, and 2500

ASME B16. 34 ( 2013) Val ves - Fl anged, Thr eaded and Wel di ng End

ASME B16. 39 ( 2014) St andar d f or Mal l eabl e I r on Thr eaded Pi pe Uni ons; Cl asses 150, 250, and 300

ASME B18. 2. 1 ( 2012; Er r at a 2013) Squar e and Hex Bol t s and Scr ews ( I nch Ser i es)

ASME B18. 2. 2 ( 2010) Nut s f or Gener al Appl i cat i ons:

Machi ne Scr ew Nut s, Hex, Squar e, Hex Fl ange, and Coupl i ng Nut s ( I nch Ser i es)

ASME B31. 1 ( 2014; I NT 1- 47) Power Pi pi ng

ASME B40. 100 ( 2013) Pr essur e Gauges and Gauge Attachments

ASME BPVC SEC VI I I D1 ( 2015) BPVC Sect i on VI I I - Rul es f or Const r uct i on of Pr essur e Vessel s Di v i s i on 1

ASME BPVC SEC I X ( 2015) BPVC Qual i f i cat i on St andar d f or Wel di ng, Br azi ng, and Fusi ng Pr ocedur es;

Wel der s; Br azer s; and Wel di ng, Br azi ng, and Fusi ng Oper at or s

ASTM I NTERNATI ONAL ( ASTM)

ASTM A 106/ A 106M ( 2010) St andar d Speci f i cat i on f or Seaml ess Car bon St eel Pi pe f or Hi gh- Temper at ur e Service

ASTM A 194/ A 194M ( 2010) St andar d Speci f i cat i on f or Car bon and Al l oy St eel Nut s f or Bol t s f or

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Hi gh- Pr essur e or Hi gh- Temper at ur e Ser vi ce, or Bot h

ASTM A 307 ( 2007b) St andar d Speci f i cat i on f or Car bon St eel Bol t s and St uds, 60 000 PSI Tensi l e Strength

ASTM A 53/ A 53M ( 2010) 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

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

I NDUSTRY ( MSS)

MSS SP- 45 ( 2003; R 2008) Bypass and Dr ai n Connect i ons

MSS SP- 58 ( 2009) 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- 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- 80 ( 2013) Br onze Gat e, Gl obe, Angl e and Check Valves

U. S. GENERAL SERVI CES ADMI NI STRATI ON ( GSA)

CI D A- A- 1689 ( Rev B) Tape, Pr essur e- Sensi t i ve Adhesi ve, ( Pl ast i c Fi l m)

U. S. GREEN BUI LDI NG COUNCI L ( USGBC)

LEED NC ( 2009; R2014) Leader shi p i n Ener gy and Envi r onment al Desi gn( t m) New Const r uct i on Rat i ng Syst em

1. 5 GENERAL REQUI REMENTS

1. 5. 1 Cl asses and Maxi mum Wor ki ng Pr essur es

Equi pment , pi pi ng, and pi pi ng component s shal l be sui t abl e f or use under t he maxi mum wor ki ng pr essur e i ndi cat ed. Except as modi f i ed her ei n, t he pr essur e t emper at ur e l i mi t at i ons shal l be as speci f i ed i n t he r ef er enced st andar ds and speci f i cat i ons.

1. 5. 2 Wel di ng Saf et y

AWS Z49. 1.

1. 5. 3 Definitions

Hi gh Pr essur e Pi pi ng Syst em: A syst em whose pr essur e i s gr eat er t han 15 psi g and shal l conf or m t o ASME B31. 1.

Low Pr essur e Pi pi ng Syst em: A syst em whose pr essur e i s 15 psi g or l ess.

Ter mi nal Uni t : An encl osed uni t t hat pr ovi des heat ed ai r f r om a st eam coi l

SECTI ON 23 22 26 Page 3 and i ncl udes nat ur al convect i on uni t s, r adi at i on, and f or ced ai r uni t s.

Pi pi ng and Pi pi ng Syst em: I ncl udes pi pe, t ubi ng, f l anges, bol t i ng, gasket s, val ves, saf et y val ves, f i t t i ngs, and pr essur e cont ai ni ng par t s of ot her pi pi ng component s, hanger s, suppor t s, gui des, expansi on j oi nt s, anchor s, and ot her equi pment i t ems necessar y t o pr event over st r essi ng t he pr essur e cont ai ni ng par t s.

1. 6 SUBMITTALS

Gover nment appr oval i s r equi r ed f or submi t t al s wi t h a " G" desi gnat i on;

submi t t al s not havi ng a " G" desi gnat i on ar e f or i nf or mat i on onl y. When used, a desi gnat i on f ol l owi ng t he " G" desi gnat 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 . The f ol l owi ng shal l be submi t t ed i n accor dance wi t h Di v i s i on 01 Sect i on 01 33 00 " Submi t t al Procedures":

SD- 03 Pr oduct Dat a

Val ves; G, AE

Val ve Oper at i ng Mechani sm; G, AE

I nst r ument at i on; G, AE

St eam Met er s; G, AE

St r ai ner s; G, AE

Fl ash Tanks; G, AE

SD- 05 Desi gn Dat a

Rel i ef Devi ce Si z i ng Cal cul at i ons; G

Pi pi ng Fl exi bi l i t y and Suppor t Anal ysi s; G

SD- 06 Test Repor t s

St eam Pi pi ng t est s; G, AE

Val ves t est s; G, AE

I nst r ument at i on t est s; G, AE

Pi pe and Pi pe Syst em; G, AE

I nspect i on Repor t s as Requi r ed by ASME B31. 1 Tabl e 136. 4; G

SD- 07 Cer t i f i cat es

Wel di ng Pr ocedur e; G

Wel der ' s Per f or mance Qual i f i cat i on Recor d; G

Li st of Wel der s and Wel der ' s Symbol s; G

SD- 11 Cl oseout Submi t t al s

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Fi nal Sust ai nabi l i t y Not ebook Submi t t al ; G

LEED Document at i on Not ebook; G

1. 7 QUALI TY ASSURANCE

1. 7. 1 Wel di ng Pr ocedur e

Submi t wel di ng pr ocedur e speci f i cat i on f or met al s i ncl uded i n t he wor k, t oget her wi t h pr oof of t he pr ocedur e' s qual i f i cat i ons as out l i ned i n

ASME B31. 1.

1. 7. 2 Wel der ' s Per f or mance Qual i f i cat i on Recor d

Submi t t o t he Gover nment t he Wel der ' s Per f or mance Qual i f i cat i on Recor d i n conf or mance wi t h ASME B31. 1 f or each wel der , showi ng t hat t he wel der was t est ed under t he appr oved pr ocedur e speci f i cat i on submi t t ed by t he Cont r act or . I n addi t i on, t he Cont r act or shal l submi t l i s t of wel der s and wel der ' s symbol s, assi gned number , or l et t er whi ch shal l be used t o i dent i f y t he wor k of t he wel der whi ch shal l be af f i xed i mmedi at el y upon compl et i on of t he wel d. Wel der s maki ng def ect i ve wel ds af t er passi ng a qual i f i cat i on t est shal l be r equi r ed t o t ake a r equal i f i cat i on t est .

Wel der s f ai l i ng t he r equal i f i cat i on t est s wi l l not be per mi t t ed t o wor k under t hi s Cont r act .

1. 7. 3 Pr evi ous Qual i f i cat i ons

Wel di ng pr ocedur es, wel der s, and wel di ng oper at or s pr evi ousl y qual i f i ed by t est may be accept ed f or t hi s cont r act wi t hout r equal i f i cat i on subj ect t o appr oval i f t he condi t i ons speci f i ed i n ASME B31. 1 ar e met bef or e a pr ocedur e can be used.

1. 8 SUSTAI NABLE DESI GN REQUI REMENTS

1. 8. 1 Fi nal Sust ai nabi l i t y Not ebook Submi t t al

Ref er t o Sect i on 01 33 29 SUSTAI NABI LI TY REPORTI NG f or f eder al sust ai nabi l i t y pr oduct and document at i on r equi r ement s.

1. 8. 2 LEED Document at i on Not ebook

Ref er t o Sect i on 01 33 29 SUSTAI NABI LI TY REPORTI NG f or LEED NC pr er equi s i t es and cr edi t s r equi r ed t o be ear ned f or t hi s pr oj ect ( r ef er t o LEED scor ecar d at t ached t o 01 33 29 SUSTAI NABI LI TY REPORTI NG f or t hose cr edi t s and r equi r ed poi nt s i n t hose cr edi t s) . Ref er t o t he LEED NC v2009 r ef er ence gui de and addi t i onal onl i ne gui dance at www. usgbc. or g f or document at i on r equi r ement s.

PART 2 PRODUCTS

2. 1 PI PE AND PI PE SYSTEM

Al l st eam syst em component s shal l be as descr i bed i n t he f ol l owi ng par agr aphs except t hat , f or c l ean st eam syst em, al l wet t ed par t s shal l be 304 st ai nl ess st eel .

2. 1. 1 Hi gh Pr essur e St eam Pi pi ng Syst em ( Over 15 psi g)

ASME B31. 1 f or a st eam wor ki ng pr essur e of 100 psi g and a t emper at ur e of

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350 degr ees F, a condensat e pr essur e of 30 psi g, and a t emper at ur e of 212 degr ees F.

2. 1. 1. 1 Hi gh Pr essur e St eam Pi pi ng

ASTM A 106/ A 106M or ASTM A 53/ A 53M, Gr ade B, Schedul e 40, bl ack st eel , el ect r i c- r esi st ance wel ded or seaml ess. Use ASTM A 53/ A 53M pi pe f or bending.

2. 1. 2 Low Pr essur e St eam Pi pi ng Syst em

ASME B31. 1 f or a st eam wor ki ng pr essur e of 15 psi g or l ess, a condensat e pr essur e of 15 psi g, and a t emper at ur e of 212 degr ees F.

2. 1. 2. 1 Low Pr essur e St eam Pi pi ng

St eel Pi pi ng: ASTM A 53/ A 53M, Schedul e 40, bl ack, el ect r i c- r esi st ance wel ded or seaml ess. Use ASTM A 53/ A 53M pi pe f or bendi ng.

2. 1. 3 Condensat e Ret ur n Pi pi ng ( 100 psi g or Less)

St eel Pi pi ng: ASTM A 106/ A 106M or ASTM A 53/ A 53M, Gr ade B, Schedul e 80, bl ack, el ect r i c- r esi st ance wel ded or seaml ess.

2. 1. 4 Fittings

Pr ovi de f i t t i ngs compat i bl e i n al l r espect s ( mat er i al , s i ze, pr essur e, and t emper at ur e l i mi t at i ons) wi t h t he pi pe bei ng used and wi t hi n any f ur t her l i mi t at i ons of ASME B31. 1.

2. 1. 4. 1 Fi t t i ngs f or St eel Pi pe

a. Si zes 1/ 8 i nch t o 2 i nches:

( 1) St eel Fi t t i ngs: ASME B16. 11, socket wel di ng or t hr eaded.

Wher e pr essur e exceeds 15 psi g, pr ovi de socket - wel di ng t ype onl y.

( 2) Mal l eabl e I r on Fi t t i ngs: ASME B16. 3, t hr eaded.

b. Si zes 2- 1/ 2 i nches and l ar ger :

( 1) St eel Fi t t i ngs: ASME B16. 9, but t wel di ng or ASME B16. 5, flanged.

2. 1. 5 Unions

2. 1. 5. 1 Uni ons f or St eel Pi pe

ASME B16. 39, t hr eaded.

2. 1. 6 Flanges

Remove t he r ai sed f aces on f l anges when used wi t h f l anges havi ng a f l at face.

2. 1. 6. 1 St eel Fl anges

ASME B16. 5, f or ged st eel , wel di ng t ype.

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2. 1. 6. 2 Br onze Fl anges

ASME B16. 24, t hr eaded.

2. 1. 7 Valves

Compl y wi t h t he f ol l owi ng par agr aphs. End connect i ons shal l compl y wi t h par agr aph ent i t l ed " End Connect i ons. "

2. 1. 7. 1 Gat e Val ves

a. Br onze Gat e Val ves: MSS SP- 80, Type 1 ( sol i d wedge, non- r i s i ng st em) or Type 2 ( sol i d wedge, i ns i de scr ew, r i s i ng st em) , 3 i nches and smal l er , t hr eaded j oi nt ends, and not l ess t han Cl ass 150.

b. St eel Gat e Val ves: ASME B16. 34. Pr ovi de out s i de scr ew and yoke t ype wi t h sol i d wedge or f l exi bl e wedge di sc, and wi t h t r i m sui t abl e f or t he ser vi ce t emper at ur e and pr essur e.

2. 1. 7. 2 Gl obe and Angl e Val ves

a. Br onze Gl obe and Angl e Val ves: MSS SP- 80, Type 1 ( met al di sc, i nt egr al seat ) or Type 3 ( met al di sc, r enewabl e seat ) , 3 i nches and smal l er , t hr eaded j oi nt ends, Cl ass 200. Val ves shal l have r enewabl e seat s and di scs.

b. St eel Gl obe and Angl e Val ves: ASME B16. 34, wi t h t r i m sui t abl e f or t he ser vi ce t emper at ur e and pr essur e.

2. 1. 7. 3 Check Val ves

a. Br onze Check Val ves: MSS SP- 80, Type 3 ( swi ng check, met al di sc t o met al seat ) , 3 i nches and smal l er , t hr eaded j oi nt ends, Cl ass 200, r egr i ndi ng t ype.

2. 1. 7. 4 St eam Pr essur e Reduci ng Val ves

Type Pi l ot , Cl ass 150, Const r uct i on cast i r on, Load Char act er i st i cs percentage.

2. 1. 7. 5 Temper at ur e Regul at i ng Val ves

Type Pi l ot , Cl ass 150, cast i r on.

2. 1. 7. 6 Val ve Oper at i ng Mechani sm

Pr ovi de power oper at or s and ext ensi on st ems wher e i ndi cat ed and as specified.

a. Power Oper at or s: Shal l be el ect r i c . Power oper at ed val ves shal l open and cl ose at r at es no s l ower t han 10 i nches per mi nut e f or gat e val ves and 4 i nches per mi nut e f or gl obe and angl e val ves. Val ves shal l open f ul l y or c l ose t i ght l y wi t hout r equi r i ng f ur t her at t ent i on when t he act uat i ng cont r ol i s moved t o t he open or c l ose posi t i on. A pr edet er mi ned t hr ust exer t ed on t he st em dur i ng oper at i on r esul t i ng f r om an obst r uct i on i n t he val ve shal l cause t he mot or t o aut omat i cal l y st op. Power oper at or s shal l be compl et e wi t h al l gear i ng and cont r ol s necessar y f or t he s i ze of val ve bei ng pr ovi ded. Power oper at or s shal l be desi gned t o oper at e on t he el ect r i c power suppl y i ndi cat ed.

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b. Ext ensi on St em: Shal l be cor r osi on r esi st i ng st eel desi gned f or r i s i ng and non- r i s i ng st ems, as appl i cabl e, and f or connect i on t o t he val ve st em by a s l eeve coupl i ng or uni ver sal j oi nt . Pr ovi de i n l engt h r equi r ed t o connect t he val ve st em and t he handwheel and of suf f i c i ent cr oss sect i on t o t r ansf er t he t or que r equi r ed t o oper at e t he val ve.

2. 1. 8 End Connect i ons

2. 1. 8. 1 St eel Pi pi ng

Si zes 2 i nches and smal l er t hr eaded or socket wel ded; s i zes 2- 1/ 2 i nches and l ar ger f l anged or but t wel ded.

a. Thr eaded Joi nt s: ASME B1. 20. 1.

b. Fl anged Joi nt s: Fl anges shal l conf or m t o par agr aph ent i t l ed " Fl anges. " Bol t i ng and gasket s shal l be as f ol l ows:

( 1) Bol t i ng: Mat er i al used f or bol t s and st uds shal l conf or m t o ASTM A 307, Gr ade B; and mat er i al f or nut s shal l conf or m t o ASTM A 194/ A 194M, Gr ade 2. Di mensi ons of bol t s, st uds, and nut s shal l conf or m t o ASME B18. 2. 1 and ASME B18. 2. 2 wi t h t hr eads conf or mi ng t o ASME B1. 1 coar se t ype, wi t h Cl ass 2A f i t f or bol t s and st uds, and Cl ass 2B f i t f or nut s. Bol t s or bol t - st uds shal l ext end compl et el y t hr ough t he nut s and may have r educed shanks of a di amet er not l ess t han t he di amet er at r oot of t hr eads. Car bon st eel bol t s shal l have Amer i can St andar d r egul ar squar e or heavy hexagon heads and shal l have Amer i can St andar d heavy semi f i ni shed hexagonal nut s, conf or mi ng t o ASME B18. 2. 1 and ASME B18. 2. 2.

( 2) Gasket s: Gasket s shal l be as f ol l ows:

Wor ki ng Condi t i ons Material

Sat ur at i on 100 psi g, 350 degr ees F Composi t i on

Gasket s shal l be as t hi n as t he f i ni sh of sur f aces wi l l per mi t .

Met al or met al - j acket ed non- asbest os gasket s shal l be used wi t h smal l mal e and f emal e or smal l t ongue- and- gr oove f l anges or f l anged f i t t i ngs; t hey may be used wi t h st eel f l anges wi t h l apped, l ar ge mal e and f emal e, l ar ge t ongue- and- gr oove, or r ai sed f aces.

Ful l f aced gasket s shal l be used wi t h f l at - f aced br onze f l anges.

Lapped st eel f l anges, or r ai sed- f ace st eel f l anges shal l have r i ng gasket s wi t h an out s i de di amet er ext endi ng t o t he i nsi de of t he bol t hol es. Wi dt hs of gasket s f or smal l mal e and f emal e and f or t ongue- and- gr oove j oi nt s shal l be equal t o t he wi dt hs of t he mal e f ace or t ongue. Gasket s shal l have an i nsi de di amet er equal t o or l ar ger t han t he por t openi ngs. Ri ngs f or r i ng j oi nt s shal l be i n accor dance wi t h di mensi ons i n ASME B16. 20, sui t abl e f or t he ser vi ce condi t i ons encount er ed, and shal l be sof t er t han t he f l anges. Di mensi ons f or non- met al l i c gasket s shal l be i n accor dance wi t h ASME B16. 21.

c. But t Wel d Joi nt s: ASME B31. 1. The use of backi ng r i ngs shal l conf or m t o ASME B31. 1. Fer r ous r i ngs shal l be of good wel dabl e qual i t y and shal l not exceed 0. 05 per cent sul f ur ; f or al l oy pi pe, backi ng r i ngs shal l be of mat er i al compat i bl e wi t h t he chemi cal composi t i on of t he par t s t o be wel ded and pr ef er abl y of t he same composi t i on. Backi ng

SECTI ON 23 22 26 Page 8 r i ngs shal l be cont i nuous machi ned or spl i t band t ype.

d. Socket Wel d Joi nt s: ASME B31. 1.

2. 1. 9 Instrumentation

2. 1. 9. 1 Pr essur e and Vacuum Gages

ASME B40. 100 wi t h r est r i c t or , l ocat e as i ndi cat ed. Pr ovi de scal e r ange f or i nt ended ser vi ce. Scal e r ange not t o exceed t wo t i mes ( 2X) t he i ndi cat ed pr essur e of pi pi ng.

2. 1. 9. 2 Tank Gages

Locat e as i ndi cat ed.

2. 1. 9. 3 I ndi cat i ng Ther momet er s

Ther momet er s shal l be di al t ype wi t h an adj ust abl e angl e sui t abl e f or t he ser vi ce. Pr ovi de t her mowel l s i zed f or each t her momet er i n accor dance wi t h t he t her mowel l speci f i cat i on. Fl ui d- f i l l ed t her momet er s ( mer cur y i s not accept abl e) shal l have a nomi nal scal e di amet er of 5 i nches. Const r uct i on shal l be st ai nl ess- st eel case wi t h mol ded gl ass cover , st ai nl ess- st eel st em, and bul b. St em shal l be st r ai ght , l engt h as r equi r ed t o f i t wel l .

Bi met al t her momet er s shal l have a scal e di amet er of 3- 1/ 2 i nches. Case shal l be her met i c. Case and st em shal l be const r uct ed of st ai nl ess st eel .

Bi met al st em shal l be st r ai ght and of a l engt h as r equi r ed t o f i t t he wel l .

2. 1. 10 Mi scel l aneous Pi pel i ne Component s

2. 1. 10. 1 St eam Met er s

Pr ovi de r ot ar y axi al - t ur bi ne t ype compl i ant wi t h t he f ol l owi ng:

1. Pr ovi de r ot ar y axi al - t ur bi ne t ot al i z i ng t ype desi gned f or mount i ng di r ect l y i n t he st eam l i ne ( f or s i zes up t o 4 i nches i ncl usi vel y) .

Pr ovi de st r ai ght eni ng vanes as r equi r ed f or met er pl acement i n pi pe.

2. The met er shal l be sel f - cont ai ned and sel f - oper at i ng r equi r i ng no mer cur y, pr essur e pi pi ng or el ect r i cal connect i ons except f or oper at i on of accessor y cont act s wher e r equi r ed or desi r ed. The met er shal l i ncl ude a dampened f an shaf t assembl y, f i xed i nt er nal or i f i ce, and magnet i cal l y dr i ven count er of di al and poi nt er t ype. St uf f i ng box shal l not be al l owed.

3. Mat er i al s of const r uct i on shal l be cast i r on body wi t h 250 pounds f l anged ends f or pr essur es up t o 250 psi g and t emper at ur es up t o 450 degr ees F. Wear par t s shal l be of monel or st ai nl ess st eel wi t h gr aphi t e t op bear i ng and j ewel l ed bot t om bear i ng.

4. Met er shal l be di r ect r eadi ng i n pounds of st eam over a 10 t o 1 r ange, wi t h cont i nuous over l oad capabi l i t y up t o 150 per cent of r at ed capaci t y and t empor ar y over l oad capabi l i t y up t o 200 per cent of r at ed capacity.

5. Accur acy shal l be wi t hi n pl us or mi nus 2 per cent of act ual f l ow over t he ent i r e 10 t o 1 r ange at f l ow r at es and pr essur es wi t hi n t he l i mi t s set f or t h i n t he capaci t y t abl es.

SECTI ON 23 22 26 Page 9

6. Met er shal l be equi pped wi t h pr essur e compensat i ng count er f or aut omat i cal l y and cont i nuousl y cor r ect i ng met er r eadi ngs t o compensat e f or l i ne pr essur e var i at i ons. The count er shal l be sel f - cont ai ned and sel f - oper at i ng and r equi r e no connect i ons ot her t han a s i ngl e t ap t o t he st eam mai n.

7. Met er count er shal l be equi pped wi t h el ect r i c cont act or t o oper at e a r emot e t ot al i zer , or f or pr ovi di ng i mpul ses f or i nt er f aci ng wi t h an ener gy moni t or i ng syst em. Cont act s or i mpul ses t o be pr opor t i onal t o pr essur e compensat ed st eam f l ow.

2. 1. 10. 2 Ai r Tr aps

For f l oat - oper at ed st eam t r aps ( non- t her most at i c) , except t hat t he val ve mechani sm shal l be i nver t ed so as t o be c l osed, not opened, by r i s i ng wat er . Ar r ange f l oat - cont r ol l ed val ves t o c l ose pr ompt l y when wat er ent er s t he t r aps. Locat e t r aps as i ndi cat ed.

2. 1. 10. 3 Strainers

St yl e Y ( Y pat t er n) f or Cl ass 125 and 250 pi pi ng i n s i zes 1/ 2 t o 8 i nches, i ncl usi ve, l ocat e as i ndi cat ed, cast i r on pr ohi bi t ed.

2. 1. 10. 4 Hanger s, Suppor t s, Spaci ng Requi r ement s, and At t achment s

MSS SP- 58 and ASME B31. 1 f or mat er i al s, desi gn, and manuf act ur e. MSS SP- 69 f or sel ect i on and appl i cat i on.

2. 1. 10. 5 Fl ash Tanks

Const r uct of st eel f or a mi ni mum wor ki ng pr essur e of 125 psi g. Pr ovi de t he t ank wi t h a vent and val ved dr ai n.

PART 3 EXECUTI ON

3. 1 INSTALLATION

Wor k mat er i al and equi pment i nt o a compl et e, conveni ent , and economi cal syst em or syst ems; and pr ovi de appar at us, par t s, mat er i al s, and accessor i es whi ch ar e necessar y t o accompl i sh t hi s r esul t .

3. 1. 1 Piping

Fabr i cat e, assembl e, wel d, br aze, and i nst al l pi pi ng and pi pe syst em i n accor dance wi t h ASME B31. 1 and as f ur t her qual i f i ed her ei n. Pi pi ng shal l f ol l ow t he gener al ar r angement shown. Cut pi pi ng accur at el y t o measur ement s est abl i shed, f or t he wor k shown, by t he Cont r act or , and wor k i nt o pl ace wi t hout spr i ngi ng or f or c i ng, except wher e col d- spr i ngi ng i s i ndi cat ed. Locat e pi pi ng and equi pment wi t hi n bui l di ngs ent i r el y out of t he way of l i ght i ng f i x t ur es, condui t , and door s, wi ndows, and ot her openi ngs. Run over head pi pi ng i n bui l di ngs i n t he most i nconspi cuous posi t i ons. Pr ovi de adequat e c l ear ances f r om wal l s , cei l i ngs, and f l oor s t o per mi t t he wel di ng of j oi nt s; at l east 6 i nches f or pi pe s i zes 4 i nches and smal l er , 10 i nches f or pi pe s i zes l ar ger t han 4 i nches, and i n cor ner s pr ovi de suf f i c i ent c l ear ance t o per mi t t he wel der t o wor k bet ween t he pi pe and one wal l . Make pr ovi s i on f or expansi on and cont r act i on of pi pe l i nes.

Do not bur y, conceal , or i nsul at e pi pi ng unt i l i t has been i nspect ed, t est ed, and appr oved. Do not conceal pi pi ng i n wal l s, par t i t i ons, under gr ound, or under t he f l oor except as i ndi cat ed. Wher e pi pe passes

SECTI ON 23 22 26 Page 10 t hr ough bui l di ng st r uct ur e, do not conceal pi pe j oi nt s, but l ocat e wher e t hey may be r eadi l y i nspect ed and not weaken bui l di ng st r uct ur e. Run i nsul at ed pi pe as shown and as r equi r ed wi t h suf f i c i ent c l ear ance t o per mi t appl i cat i on of i nsul at i on. Use f l anged j oi nt s onl y wher e necessar y f or nor mal mai nt enance and wher e r equi r ed t o mat ch val ves and equi pment .

Gasket s, packi ng, and t hr ead compounds shal l be sui t abl e f or t he ser vi ce.

Appl y j oi nt compound or t ape on mal e t hr ead onl y. Use l ong r adi us el l s wher ever possi bl e t o r educe pr essur e dr ops. Pi pe bends may be used i n l i eu of wel di ng f i t t i ngs wher e space per mi t s. Pi pe bends shal l have a uni f or m r adi us of at l east f i ve t i mes t he pi pe di amet er and shal l be f r ee f r om any appr eci abl e f l at t eni ng, wr i nkl i ng, or t hi nni ng of t he pi pe. Mi t er i ng of pi pe t o f or m el bows, not chi ng st r ai ght r uns t o f or m f ul l s i zed t ees, or any s i mi l ar const r uct i on shal l not be used. Make br anch connect i ons wi t h wel di ng t ees except f act or y made f or ged wel di ng br anch out l et s or nozzl es havi ng i nt egr al r ei nf or cement s conf or mi ng t o ASME B31. 1 may be used, pr ovi ded t he nomi nal di amet er of t he br anch i s at l east one pi pe s i ze l ess t han t he nomi nal di amet er of t he r un. Run pi pi ng as i ndi cat ed, and avoi d i nt er f er ence wi t h ot her pi pi ng, condui t , or equi pment . Run ver t i cal pi pi ng pl umb and st r ai ght and par al l el t o wal l s, except wher e speci f i cal l y shown ot her wi se. Do not t r ap l i nes, except wher e i ndi cat ed. Use r educi ng f i t t i ngs f or changes i n pi pe s i zes. The use of bushi ngs i s pr ohi bi t ed. I n hor i zont al l i nes 2- 1/ 2 i nches and l ar ger , use r educi ng f i t t i ngs of t he eccent r i c t ype t o mai nt ai n t he bot t om of t he l i nes i n t he same pl ane f or st eam l i nes and t o mai nt ai n t he t op of t he l i nes i n t he same pl ane f or condensat e l i nes except wher e a t r ap or pocket woul d r esul t . Pr ovi de sui t abl e s i ze s l eeves f or l i nes passi ng t hr ough bui l di ng st r uct ur e.

I nst al l pi pi ng connect ed t o equi pment t o pr ovi de f l exi bi l i t y f or t her mal st r esses and f or v i br at i on. Suppor t and anchor pi pe so t hat st r ai n f r om wei ght and t her mal movement of pi pi ng i s not i mposed on t he equi pment .

Thor oughl y c l ean each sect i on of pi pe, f i t t i ngs, and val ves of f or ei gn mat t er bef or e er ect i on. Bef or e pl aci ng i n posi t i on, c l ean t he i nsi de of bl ack st eel pi pe by r appi ng al ong i t s f ul l l engt h t o l oosen sand, mi l l scal e, and ot her f or ei gn mat t er ; pi pe 2 i nches and l ar ger shal l have a wi r e br ush of a di amet er l ar ger t han t hat of t he i nsi de of t he pi pe dr awn t hr ough i t s ent i r e l engt h sever al t i mes. Bef or e f i nal connect i ons ar e made t o t he appar at us, t hor oughl y wash out t he pi pi ng i nt er i or wi t h wat er . Bl ow out st eam pi pi ng wi t h hi gh- pr essur e st eam, i f avai l abl e, r emovi ng r ust , oi l , chi ps, sand, and ot her mat er i al . Pl ug or cap open ends of mai ns dur i ng shut down per i ods. Do not l eave l i nes open at any pl ace wher e any f or ei gn mat t er mi ght acci dent al l y ent er pi pe.

3. 1. 1. 1 Welding

a. Wel di ng of Pi pi ng: Wel di ng of j oi nt s i n pi pi ng, but t wel ds, f i l l et wel ds, bends, l oops, of f set s, and pr epar at i on and cl eani ng of pi pe shal l compl y wi t h ASME B31. 1. Wel ds shal l be exami ned i n accor dance wi t h t he mandat or y mi ni mum nondest r uct i ve exami nat i ons f or pr essur e wel ds Tabl e 136. 4 as i ndi cat ed i n Chapt er VI of ASME B31. 1.

b. Qual i t y of Wel ds: Qual i t y of wel ds, cor r ect i on of def ect s, st r ess r el i evi ng, and pr eheat i ng shal l compl y wi t h ASME B31. 1.

c. Ar c Wel di ng and Gas Wel di ng: Compl y wi t h ASME BPVC SEC I X.

3. 1. 1. 2 Hanger s and Suppor t s

Unl ess ot her wi se i ndi cat ed, hor i zont al and ver t i cal pi pi ng at t achment s shal l compl y wi t h MSS SP- 58. Cont i nuous i nser t s and expansi on bol t s may be used.

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3. 1. 1. 3 Gr adi ng and Vent i ng of Pi pe Li nes

Unl ess ot her wi se i ndi cat ed, i nst al l hor i zont al l i nes of st eam and r et ur n pi pi ng t o gr ade down i n t he di r ect i on of f l ow wi t h a pi t ch of not l ess t han 1 i nch i n 30 f eet , except i n l oop mai ns and mai n header s wher e t he f l ow may be i n ei t her di r ect i on. When count er f l ow of condensat e wi t hi n t he st eam pi pe occur s i n a por t i on of a pi pel i ne, pi t ch up i n t he di r ect i on of st eam f l ow a mi ni mum of 6 i nches per 100 f eet and i ncr ease pi pe di amet er s by one st andar d pi pe s i ze. Ai r vent s shal l be pr ovi ded at t he hi ghest poi nt of any ver t i cal r i ser .

3. 1. 1. 4 Pi pe Sl eeves

Pr ovi de pi pe s l eeves wher e pi pes and t ubi ng pass t hr ough masonr y or concr et e wal l s, f l oor s, r oof s, and par t i t i ons. Use Schedul e 40 gal vani zed st eel pi pe s l eeves i n out s i de wal l s bel ow and above gr ade, i n f l oor , and i n r oof s l abs. Sl eeves i n par t i t i ons shal l be z i nc- coat ed sheet st eel havi ng a wei ght of not l ess t han 0. 907 psf . Space bet ween pi pe, t ubi ng, or i nsul at i on and t he s l eeve shal l be not l ess t han 1 i nch. Hol d s l eeves secur el y i n pr oper posi t i on and l ocat i on bef or e and dur i ng const r uct i on.

Sl eeves shal l be of suf f i c i ent l engt h t o pass t hr ough ent i r e t hi ckness of wal l s, par t i t i ons, or s l abs. Sl eeves i n f l oor s l abs shal l ext end 2 i nches above t he f i ni shed f l oor . Pack space bet ween t he pi pe or t ubi ng and t he s l eeve f i r ml y wi t h oakum and caul k bot h ends of t he s l eeve wi t h el ast i c cement . Fur ni sh s l eeves i n wat er pr oof ed const r uct i on wi t h f l anges and cl ampi ng r i ngs.

3. 1. 1. 5 Fl oor , Wal l , and Cei l i ng Pl at es

Secur e pl at es t o t he pi pe wi t h enough cl ear ance f or t her mal expansi on of pi pe. Use chr omi um- pl at ed st eel or ni ckel - pl at ed cast i r on pl at es on pi pes passi ng t hr ough f l oor s and par t i t i ons of t oi l et r ooms and wher e i ndi cat ed;

use pai nt ed cast i r on, mal l eabl e i r on, or st eel f or al l ot her pl at es.

3. 1. 1. 6 Fl ashi ng f or Bui l di ngs

Pr ovi de t i ght wat er pr oof f l ashi ng wher e pi pes pass t hr ough bui l di ng r oof s and out s i de wal l s.

3. 1. 1. 7 Uni ons and Fl anges

Pr ovi de uni ons and f l anges wher e necessar y t o per mi t easy di sconnect i on of pi pi ng and appar at us, and as i ndi cat ed. Pr ovi de a uni on f or each t hr eaded end val ve. Pl ace uni ons or f l anges no f ar t her apar t t han 100 f eet . Use uni ons on pi pi ng smal l er t han 2 i nches i n di amet er , and use f l anges on pi pi ng 2 i nches and l ar ger i n di amet er . Pr ovi de di el ect r i c uni ons or f l anges bet ween f er r ous and non- f er r ous pi pi ng, equi pment , and f i t t i ngs;

except t hat br onze val ves and f i t t i ngs may be used wi t hout di el ect r i c coupl i ngs f or f er r ous- t o- f er r ous or non- f er r ous t o non- f er r ous connect i ons. Di el ect r i c f i t t i ngs shal l ut i l i ze a non- met al l i c f i l l er whi ch wi l l pr event cur r ent f l ow. The spacer shal l be sui t abl e f or t he pr essur e and t emper at ur e of t he ser vi ce. The f i t t i ngs shal l ot her wi se conf or m t o t he r equi r ement s of par agr aph ent i t l ed " Fi t t i ngs. "

3. 1. 1. 8 Connect i ons f or Fut ur e Equi pment

Locat e capped or pl ugged out l et s f or connect i ons t o f ut ur e equi pment as indicated.

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3. 1. 2 Valves

3. 1. 2. 1 General

I nst al l val ves i n conf or mance wi t h ASME B31. 1, ASME BPVC SEC VI I I D1, and as r equi r ed her ei n, at t he l ocat i ons i ndi cat ed and el sewher e as r equi r ed f or t he pr oper f unct i oni ng of t he syst em. Use gat e val ves unl ess ot her wi se di r ect ed. I nst al l s t op val ves i n t he suppl y l i nes equi pped or l ocat ed so as t o per mi t oper at i on f r om f l oor l evel , or pr ovi ded wi t h saf e access i n t he f or m of wal kways or l adder s. I nst al l val ves i n posi t i ons accessi bl e f or oper at i on and r epai r . Pr ovi de gat e val ves 8 i nches and l ar ger wi t h gl obe- val ved bypass compl i ant wi t h MSS SP- 45.

3. 1. 2. 2 Gl obe Val ves

I nst al l gl obe val ves so t hat t he pr essur e shal l be bel ow t he di sk. I nst al l gl obe val ves wi t h t he st ems hor i zont al on st eam and exhaust l i nes.

3. 1. 2. 3 St eam Pr essur e- Reduci ng Val ves

Pr ovi de t he st eam l i ne ent er i ng each pr essur e- r educi ng val ve wi t h a st r ai ner . Pr ovi de each pr essur e- r educi ng val ve uni t wi t h t wo cut out val ves and wi t h a gl obe or angl e bypass val ve and bypass pi pi ng. Pr ovi de each pr essur e- r educi ng val ve uni t wi t h an i ndi cat i ng st eam gauge t o show t he r educed pr essur e, and a saf et y val ve on t he l ow pr essur e s i de wi t h suf f i c i ent capaci t y t o r el i eve t he hi gh pr essur e st eam.

3. 1. 2. 4 Saf et y Val ves

Pr ovi de wi t h dr i p pan el bows.

3. 1. 3 Pr essur e Gauges

I nst al l a shut of f val ve or pet cock bet ween each pr essur e gauge and t he l i ne, and gages on st eam l i nes shal l have a syphon i nst al l ed ahead of t he gauge.

3. 1. 4 Thermometers

Pr ovi de t her momet er s and t her mal sensi ng el ement s of cont r ol val ves wi t h a separ abl e socket . I nst al l separ abl e socket s i n pi pe l i nes i n such a manner t o sense t he t emper at ur e of t he f l owi ng f l ui d and mi ni mi ze obst r uct i on t o flow.

3. 1. 5 St eam Met er s

Pr ovi de st eam met er s wi t h a sui t abl e t hr ee- val ve bypass t o per mi t di smant l i ng and i nspect i on wi t hout i nt er f er ence wi t h t he ser vi ce.

3. 1. 6 Strainers

Pr ovi de st r ai ner s wi t h meshes sui t abl e f or t he ser vi ces wher e i ndi cat ed, and wher e di r t mi ght i nt er f er e wi t h t he pr oper oper at i on of val ve par t s, or i f i ces, and movi ng par t s of equi pment .

3. 1. 7 Equi pment Foundat i ons

Desi gn equi pment f oundat i ons of suf f i c i ent s i ze and wei ght t o pr ovi de

SECTI ON 23 22 26 Page 13 i sol at i on and t o pr ecl ude shi f t i ng of equi pment under oper at i ng condi t i ons.

Foundat i ons shal l meet t he r equi r ement s of t he equi pment manuf act ur er . When r equi r ed by t he Gover nment , t he equi pment manuf act ur er ' s appr oval of t he f oundat i on desi gn and const r uct i on f or t he equi pment i nvol ved shal l be obtained.

3. 1. 8 Equi pment I nst al l at i on

I nst al l equi pment as speci f i ed and i n accor dance wi t h t he manuf act ur er ' s i nst al l at i on i nst r uct i ons. Gr out equi pment mount ed on concr et e f oundat i ons bef or e pi pi ng i s i nst al l ed. I nst al l pi pi ng i n such a manner as not t o pl ace a st r ai n on any of t he equi pment . Do not bol t f l anged j oi nt s t i ght unl ess t hey mat ch. Adequat el y ext end expansi on bends bef or e i nst al l at i on.

Gr ade, anchor , gui de, and suppor t pi pi ng wi t hout l ow pocket s.

3. 1. 9 Cl eani ng of Syst em

As i nst al l at i ons of t he var i ous syst em component s ar e compl et ed, c l ean bef or e f i nal c l osi ng. Remove f or ei gn mat t er f r om equi pment and sur r oundi ng ar eas. Pr el i mi nar y or f i nal t est s shal l not be per f or med unt i l t he c l eani ng i s appr oved.

3. 1. 10 Cl eani ng and Pai nt i ng of Pi pi ng and Equi pment

Compl y wi t h t he r equi r ement s of Di v i s i on 09 Sect i on " Pai nt s and Coat i ngs. "

3. 1. 11 I dent i f i cat i on of Pi pi ng

Label s f or pi pes 3/ 4 i nch di amet er and l ar ger shal l bear pr i nt ed l egends t o i dent i f y cont ent s of pi pes and ar r ows t o shown di r ect i on of f l ow. Label s shal l have col or coded backgr ound t o s i gni f y l evel s of hazar d i n accor dance with ASME A13. 1. Legends and t ype and si ze of char act er s shal l al so conf or m as ASME A13. 1. Make l abel s of pl ast i c sheet CI D A- A- 1689 wi t h pr essur e sensi t i v i t y sui t abl e f or t he i nt ended appl i cat i ons, or t hey may be pr emol ded of pl ast i c t o f i t over pi pe. For pi pe smal l er t han 3/ 4 i nch di amet er , pr ovi de br ass i dent i f i cat i on t ags 1- 1/ 2 i nches i n di amet er wi t h l egends i n depr essed bl ack f i l l ed char act er s.

3. 2 FI ELD TESTS AND I NSPECTI ONS

Fi el d i nspect i ons, f i el d t est s, and t r i al oper at i ons speci f i ed i n t hi s sect i on shal l be per f or med by t he Cont r act or . The Cont r act or shal l pr ovi de gas, oi l , l abor , equi pment , and i nci dent al s r equi r ed f or t est i ng, except t hat i n accor dance wi t h Di v i s i on 1 t he Gover nment wi l l pr ovi de wat er or el ect r i c power r equi r ed f or t est s. The Cont r act or shal l gi ve t he Gover nment 14 days' advance wr i t t en not i ce of t he dat es and t i mes schedul ed f or t est s and t r i al oper at i ons.

3. 2. 1 Fi el d I nspect i ons

I nspect pi pi ng syst em pr i or t o i ni t i al oper at i on, f or conf or mance t o dr awi ngs, speci f i cat i ons, and ASME B31. 1. Equi pment , mat er i al , or wor k r ej ect ed because of def ect s or non- conf or mance wi t h dr awi ngs, speci f i cat i ons, and ASME B31. 1 shal l be r epl aced or cor r ect ed by t he Cont r act or , as di r ect ed by t he Gover nment .

3. 2. 2 Fi el d Test s

Conduct t he f ol l owi ng t est s af t er compl et i on of t he pi pi ng i nst al l at i on and

SECTI ON 23 22 26 Page 14 pr i or t o i ni t i al oper at i on.

3. 2. 2. 1 Pi pi ng Syst em

Test pi pi ng syst em hydr ost at i cal l y usi ng wat er not exceedi ng 100 degr ees F.

Conduct t est s i n accor dance wi t h t he r equi r ement s of ASME B31. 1 and as f ol l ows. Test t he pi pi ng syst em af t er t he l i nes have been cl eaned as her ei n speci f i ed and bef or e any i nsul at i on cover i ng has been appl i ed. Test pi pi ng syst em at 1 1/ 2 t i mes t he syst em pr essur e or 50 psi g whi chever i s gr eat er . Bef or e per f or mi ng t est s, r emove or val ve of f f r om t he syst em, gages, t r aps, and ot her appar at us whi ch may be damaged by t he t est pr essur e. I nst al l a cal i br at ed t est pr essur e gauge i n t he syst em t o obser ve any l oss i n pr essur e. Mai nt ai n t he r equi r ed t est pr essur e f or a suf f i c i ent l engt h of t i me t o enabl e an i nspect i on t o be made of j oi nt s and connect i ons. Per f or m t est s af t er i nst al l at i on and pr i or t o accept ance.

3. 2. 2. 2 St ar t - Up and Oper at i onal Test

St ar t - up t he syst em and i ni t i al l y oper at e wi t h component s oper at i ng. Dur i ng t he t est , per i odi cal l y c l ean t he var i ous st r ai ner s unt i l no f ur t her accumul at i on of f or ei gn mat er i al occur s. Exer ci se car e so t hat mi ni mum l oss of st eam occur when st r ai ner s ar e c l eaned. Adj ust saf et y and aut omat i c cont r ol i nst r ument s as necessar y t o pl ace t hem i n pr oper oper at i on and sequence.

3. 2. 2. 3 Ext ent of Fi el d Test s

Af t er i nst al l at i on and bef or e accept ance, subj ect t he wor k of t hi s sect i on t o necessar y f i el d t est s, i ncl udi ng t hose her ei n speci f i ed, and i n Di v i s i on 23 Sect i on " Test i ng, Adj ust i ng and Bal anci ng. "

- - End of Sect i on - -

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