AWWA C200 cov kav dej yog tus qauv uas qhib cov yeeb nkab nrog longitudinal los yog kauv seam, tshaj 6 pol. (150 hli) ntawm nominal txoj kab uas hla, siv rau conduction thiab faib dej, los yog siv nyob rau hauv lwm yam installation ntawm dej system.
Kev tshuaj xyuas
Txhua txoj haujlwm ua tiav thiab cov khoom siv raws li tus qauv no tuaj yeem raug tshuaj xyuas los ntawm tus neeg yuav khoom, tab sis qhov kev tshuaj xyuas no tsis zam lub chaw tsim khoom los ntawm lub luag haujlwm ntawm kev muab cov khoom siv thiab ua haujlwm raws li tus qauv no.
QUALITY GUARANTEE
Cov chaw tsim khoom ntawm ob lub kav dej AWWA C200 tswj hwm qhov kev pabcuam zoo, lav nrog rau kev ua raws li cov qauv yam tsawg kawg nkaus. Nws yuav tsum suav nrog tus kws tshuaj ntsuam xyuas welding uas tau lees paub (AWS QC1) los xyuas kom meej tias cov vuam vuam thiab cov txheej txheem vuam ntawm ob lub kav dej yog tsim nyog thiab cov txheej txheem tau ua raws li kev txwv ntawm ob qhov kev xeem thiab kev ua haujlwm zoo.
HAIV NEEG
O Cov kav dej tiav AWWA C200 yuav tsum tsis muaj qhov tsis xws luag. Qhov tsis xws luag nyob rau hauv lub seamless raj los yog cov hlau tsis yog thawj welded raj yuav raug suav hais tias yog qhov tsis txaus ntseeg thaum qhov tob ntawm qhov tsis xws luag yog ntau dua 12.5 feem pua ntawm nominal phab ntsa thickness.
Kev kho qhov tsis xws luag yuav tsis raug tso cai yog tias qhov tob ntawm qhov tsis zoo tshaj 1/3 ntawm nominal thickness ntawm cov yeeb nkab phab ntsa thiab yog compression ntawm ib feem ntawm qhov tsis xws luag nyob rau hauv qhov tob tshaj 12.5 feem pua rau ntau tshaj 25 feem pua ntawm cov sab nraud. txoj kab uas hla ntawm cov yeeb nkab. Txhua qhov kho cov yeeb nkab compression yuav tsum tau kuaj hydrostatically raws li tus qauv yuav tsum tau ua.
MARCAÃO
Ib tus lej xov tooj lossis lwm yam kev txheeb xyuas ntawm AWWA C200 Cov kav dej yuav tsum tau pleev xim rau hauv qhov chaw pom ntawm txhua ntu tubing thiab txhua ntu tshwj xeeb.
SUBJECTS
ASTM
Yog hais tias lub raj yog tsim nyob rau hauv xws li ib txoj kev raws li kom tau raws li qhov yuav tsum tau ntawm ib los yog ntau tshaj ntawm cov ASTM specifications, cov hom raj yuav tsum yog:
Hom E lossis S rau ASTM A -53
A-36, A-283, A-570, A-572 rau ASTM A-134
Txhua qib rau ASTM A -135
Txhua qib rau ASTM A -139
UAS PIPE
Thaum lub raj yuav tsum raug tsim kom tau raws li cov qauv kev cai; Cov ntawv los yog coils yuav tsum raug xaiv raws li cov khoom hauv qab no thiab cov lus qhia tshwj xeeb.
TXOJ CAI
ASTM A-36 / 36M, ASTM A-283 / A-283M - Grau C thiab D
ASTM A-572 / A-572M - Grau 42.50 thiab 60
QHOV CHAW UA HAUJ LWM
ASTM A -570 / 570M - Grau 30 txog 50.
Rau cov nplooj ntawv, qhov siab tshaj plaws qhov sib txawv ntawm cov thickness yuav tsum yog 0,010 ntiv tes hauv qab qhov txiav txim thickness.
Rau cov nplooj ntawv, qhov siab tshaj plaws kev hloov pauv thickness yuav tsum yog raws li ASTM A-568 specifications.
CHAW UA HAUJ LWM
GENERIC YUAV TSUM
Lub raj uas tsim nyob rau hauv ib tug xov tooj ntawm cov raj yuav tsum raug raws li AWWA C-200 cov txheej txheem tswj kom zoo. Cov raj no yuav tsum tau tsim kom tau raws li cov qauv kev cai ntawm ASTM A-53, A-134, A-135 thiab A-139.
CHAW UA HAUJ LWM
Lub vuam yuav tsum yog qhov sib npaug ntawm qhov ntev thiab qhov siab rau tag nrho compression ntawm lub raj.
Los ntawm kev pom zoo ntawm tus neeg yuav khoom thiab cov chaw tsim khoom, vuam tuaj yeem ua los ntawm kev siv tsis siv neeg lossis phau ntawv txhais tau tias.
Tag nrho cov kauv, longitudinal thiab circumferential seams siv nyob rau hauv kev tsim cov raj yuav tsum yog pob qij txha welded nrog tag nrho cov nkag.
Qhov siab tshaj plaws ntawm kev hloov pauv radial hauv daim hlau yog:
Rau lub thickness ntawm 3/8 ntiv tes los yog tsawg dua=0.1875 zaug ib lub thickness los yog 1/16 ntiv tes (qhov twg ntau dua).
Rau lub thickness ntawm 3/8 ntiv tes thiab saum toj no=0.1875 zaug ib lub thickness los yog 1/8 ntiv tes (los yog txawm tsawg dua).
WELDING
Cov txheej txheem, cov neeg ua haujlwm vuam, zoo li txhua tus neeg ua haujlwm, yuav tsum tsim nyog raws li Sec. IX, ntu A, ntawm Code of the Boiler thiab ASME Press Reservoir, lossis raws li AWS B2. 1, los yog nyob rau hauv ib qho kev sib koom ua ke pom zoo ntawm tus neeg yuav khoom thiab cov chaw tsim khoom.
PRODUCTION welding tests
Kev ntsuas vuam rau kev tsim cov kav dej ntawm ob lub AWWA C200 muaj xws li: ob qhov kev sim khoov (sab hauv thiab sab nraud khoov), ob qhov kev ntsuas txo qis thiab ib qho kev sim macroetc.
Feem ntau ob qhov kev xeem vuam ntau lawm: Yuav tsum muaj tsawg kawg ib txheej ntawm cov qauv vuam ntawm txhua qhov loj, qib thiab phab ntsa tuab ntawm kev ua haujlwm los ntawm txhua lub tshuab tsim khoom thiab txhua tus neeg ua haujlwm ntawm qhov tsawg kawg nkaus ntawm txhua 3000 feet ntawm cov yeeb nkab.
HYDROSTATIC TEST
PRESSÃO DE TESTE
Txhua lub raj compression yuav tsum raug kuaj los ntawm cov chaw tsim khoom ntawm lub siab hydrostatic tsis qis dua ib qho los ntawm cov qauv hauv qab no: P= 2St / D
Qhov twg:
P=yam tsawg kawg nkaus hydrostatic test siab (psi).
Nco tseg: Los ntawm kev pom zoo ntawm tus neeg yuav khoom thiab cov chaw tsim khoom, thaum lub taub thiab lub thickness ntawm lub raj phab ntsa yog qhov uas lub peev xwm ntawm cov khoom siv kuaj tau dhau los ntawm cov kev xav tau no, qhov kev sim siab yuav raug txo los yog lwm txoj kev kuaj tsis muaj kev puas tsuaj. siv. siv.
S {{0}}} kev ntxhov siab nyob rau hauv lub raj phab ntsa thaum lub sij hawm kuaj hydrostatic, uas yuav tsum yog 0.75 lub sij hawm qhov tsawg kawg nkaus yield zog ntawm cov cuab yeej siv los yog raws li teev los ntawm tus neeg yuav khoom.
T= phab ntsa thickness (inch)
D=sab nraud txoj kab uas hla (inch).
Lub xeem xovxwm yuav tsum tau tuav lub sij hawm txaus los soj ntsuam cov weld seams. Yuav tsis muaj chaw ua haujlwm.
PERMISSIBLE Variations nyob rau hauv lub luj thiab DIMENSIONS
NYIAJ THIAB NYIAJ
Tshwj tsis yog tias tau teev tseg los ntawm tus neeg yuav khoom, phab ntsa tuab thiab qhov hnyav rau cov welded raj yuav tsum tau tswj hwm los ntawm cov kev xav tau ntawm cov ntawv tshwj xeeb ntawm cov nplooj ntawv lossis cov ntawv tso cai.
CIRCUMFERENCE
Los yog lub raj yuav tsum muaj ntau yam puag ncig. Sab nraud ncig ntawm lub raj yuav tsum tsis txhob sib txawv ntau tshaj li ntxiv /- 1 feem pua, tab sis yuav tsum tsis pub tshaj ¾ ntawm lub nominal sab nraud ncig raws li nominal txoj kab uas hla.
RETIDÃO
Cov yeeb nkab tiav yuav tsum tsis txhob sib txawv ntau dua 1/8 nti los ntawm qhov deb ntawm 10 ko taw. Longa regra ua tawm tsam tubulação.
LENGTHS
Lub raj compressions teev nyob rau hauv kev txiav txim yuav tsum tau muab nrog ib tug kam rau ua ntawm ntxiv /- 2''.
Kev npaj ntawm EXTREMITIES
Yog hais tias lub raj tau teev kom muaj qhov kawg chamfered rau sab saum toj welding, qhov kawg yuav tsum tau beveled rau ib lub kaum sab xis ntawm 30 0 nrog rau kev kam rau siab ntxiv 5 0, -0 0 nrog lub hauv paus lub ntsej muag ntev ntawm 1/16 '' ntxiv / - 1 / 32 ''.
LIMBS EQUIPPED nrog FLANGES
Qhov kawg yuav tsum tau sib sau ua ke nrog flanges yuav tsum yog hauv av (longitudinal welds thiab spirals), nyob rau hauv av kom txaus nyob deb kom tso cai rau lub installation ntawm flange.
OVALIDADE (Tawm-ntawm-Roundness)
Lub roundness ntawm qhov kawg ntawm ob lub raj yuav tsum zoo ib yam nyob rau hauv txoj kab uas hla thiab phab ntsa thickness. Txhua qhov tawm-ntawm-roundness yuav tsum tau txwv rau ib tus oval du uas tuaj yeem jacked rov qab mus rau hauv ib lub voj voog.
DIAMETER
Kev kam rau siab ntawm txoj kab uas hla ntawm qhov kawg yog - 1/16 '' ntau tshaj 1/8 '' ntawm txoj kab uas hla.
1/16'' yog sib npaug rau -0.196'' nyob rau hauv lub circumference thiab ntxiv rau 1/8'' yog sib npaug rau ntxiv 0.393'' nyob rau hauv lub circumference.
FIM SQUAD
Rau AWWA C200 Cov Yeeb Nkab Dej yuav tsum tau welded nyob rau hauv lub tshav pob, qhov kawg ntawm cov yeeb nkab seem yuav tsum tsis txhob sib txawv los ntawm ntau tshaj 1/8 nti, nyob rau hauv tej taw tes los ntawm ib tug tiag tiag dav hlau perpendicular mus rau lub axis ntawm cov yeeb nkab thiab hla mus rau hauv nruab nrab ntawm lub cev
TUBE ENDS
Los ntawm kev pom zoo ntawm cov chaw tsim khoom thiab cov neeg yuav khoom, qhov kawg ntawm lub raj tuaj yeem muab tau nrog kev teeb tsa ntawm cov pob qij txha thiab kev ua siab ntev sib txawv ntawm cov uas tau piav qhia ntawm no. Nyob rau hauv cov ntaub ntawv no, qhov kawg ntawm ob lub raj yuav tsum ua raws li cov lus piav qhia ntawm ob daim duab qhia ntxaws muab rau tus neeg yuav khoom.
Cov qauv no spans los yog raj nrog longitudinal los yog kauv seam, tshaj 6 pol. (150 hli) ntawm nominal txoj kab uas hla, siv rau conduction thiab faib dej, los yog siv nyob rau hauv lwm yam installation ntawm dej system.
| SPECIFICATION rau WWA C 200 | |||
| TSIS MUAJ MECHANICAL PROPERTIES | |||
| GRAU LUB XYOO | Tensile zog, min Ksi (Mpa) | Shear Limit, min Ksi (Mpa) | Extension hauv 2 ntiv tes (50mm) feem pua |
ASTM A-570 / A-570 M gr 30 | 49 (340) hnub | 30 (205) | 25 (6 * 2.5 hli) |
ASTM A-570 / A-570 M gr 33 | 52 (360) hnub | 33 (230) hnub | 23 (6 * 2.5 hli) |
ASTM A-570 / A-570 M gr 36 | 53 (365) hnub | 36 (250) | 22 (6 @ 2.5 hli) |
ASTM A-570 / A-570 M gr 40 | 55 (380) | 40 (275) hnub | 21 (6 @ 2.5 hli) |
ASTM A-570 / A-570 M gr 45 | 60 (415) | 45 (310) | 19 (6 @ 2.5 hli) |
ASTM A-570 / A-570 M gr 50 | 65 (450) | 50 (345) hnub | 17 (6 @ 2.5 hli) |
ASTM A-570 / A-570 M gr 55 | 70 (480) hli | 55 (380) | 15 (6 @ 2.5 hli) |
ASTM A-36 / A-36 M | 58-80 (400-550) | 36 (250) | 23 |
ASTM A-283 / A-283 M gr C | 55-75 (380-515) | 30 (205) | 25 |
ASTM A-283 / A-283 M gr D | 60-80 (415-550) | 33 (230) hnub | 23 |
| SPECIFICATION AWWA C-200 | |||
| TSIS MUAJ MECHANICAL PROPERTIES | |||
| GRAU LUB XYOO | Tensile zog, min Ksi (Mpa) | Yield, min Ksi (Mpa) | Extension hauv 2 ntiv tes (50mm) feem pua |
| A-139 QIB A | 48 (330) hnub | 30 (205) | (5/16 / 7.9mm) 35 feem pua |
| A-139 QIB B | 60 (415) | 35 (240) hnub | (5/16 / 7.9mm) (ntau dua 5/16 ") |
| A-139 QIB C | 60 (415) | 42 (290) hnub | (5/16 / 7.9mm) 25 feem pua |
| A-139 QIB D | 60 (415) | 46 (315) | (5/16 / 7.9mm) 23 feem pua |
| A-139 QIB E | 66 (455) | 52 (360) hnub | (5/16 / 7.9mm) 22 feem pua |
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