Thaum qhia txog qhov loj - txoj kab uas hla flanges, engineers feem ntau pom lawv tus kheej taw qhia peb tus qauv sib tshooj: MSS SP-44, ASME B16.47, thiab ASME B16.5. Paub seb tus qauv twg siv tau rau - thiab vim li cas - yog qhov tseem ceeb rau qhov tseeb specification thiab kev yuav khoom.
Cov lus qhia no muab cov lus qhia ua kom tiav, kev coj ua-qhia dav dav ntawm MSS SP-44 steel pipeline flanges, raws li qhov tseeb ANSI / MSS SP-44-2026 tsab, nrog kev pom los ntawm ntau tshaj 12 xyoo ntawm kev tsim stainless hlau flanges.
MSS SP-44 yog dab tsi?
MSS SP sawv rau dab tsi?
MSS stands rau Manufacturers Standardization Society ntawm Valve thiab Fittings Kev lag luam, Inc . - ib tug US-raws li cov qauv tsim lub koom haum tsom rau li qub, fittings, flanges, thiab cov yeeb nkab txhawb nqa. SP stands rau Standard Practice, uas yog MSS lub npe rau nws luam tawm cov ntaub ntawv technical. Yog li ntawd, MSS SP-44 yog hais txog Txoj Cai Ua Tsis Tau . 44, uas tshwj xeeb tswj hwm cov kav dej flanges.
Txhais & Scope
MSS SP-44 yog tus qauv kev coj ua uas txhais tau hais tias yuav tsum muaj rau cov raj xa dej flanges siv nyob rau hauv siab -siab, loj- txoj kab uas hla pipeline applications. Nws suav nrog kev ntsuas kub-kub, cov khoom siv, qhov ntev, kev kam rau siab, cim, thiab kev sim. Daim ntawv tshaj tawm tam sim no yog ANSI/MSS SP-44-2026, luam tawm los ntawm Lub Koom Haum Tsim Kho Kev Lag Luam thiab tau pom zoo raws li American National Standard.
Tus qauv tau tsim muaj kwv yees li 50 xyoo dhau los los teb rau kev lag luam xav tau rau cov kav dej flanges hauv qhov loj dua li cov uas tau them los ntawm ASME B16.5 - tshwj xeeb tshaj yog rau kev siv nrog siab - lub zog, nyias- phab ntsa carbon steel kab yeeb nkab, uas yuav tsum tau txiav txim siab tshwj xeeb ntawm qhov vuam kawg ntawm flange.
Qhov ntau thiab tsawg: NPS 12 txog NPS 60 (DN 300 txog DN 1500), hauv ob -ntau zaus
Cov chav kawm siab: Chav Kawm 150, 300, 400, 600, thiab 900
Flange hom: Weld caj dab, qhov muag tsis pom, Slip On, Lap Joint
Rau NPS 10 thiab me dua, qhov yuav tsum tau muaj yog xa mus rau ASME B16.5
MSS SP-44 Sib npaug rau dab tsi?
Qhov no yog ib qho ntawm cov lus nug uas nquag nug txog MSS SP-44, thiab cov lus teb yog ncaj nraim: MSS SP-44 yog technically sib npaug rau ASME B16.47 Series A.
Thaum ASME tau tshaj tawm B16.47 - tus qauv rau loj- txoj kab uas hla steel flanges - nws tau txais MSS SP-44 raws li lub hauv paus kev rau Series A. Ob daim ntawv qhia tib cov ntaub ntawv sib npaug, qhov ntsuas kub siab, thiab cov khoom yuav tsum muaj rau qhov ntau thiab tsawg NPS 12 rau NPS 60. Hauv kev xyaum, kev qhia '4' thiab 'A' SP-44' hais txog tib lub flange.
MSS SP-44 vs ASME B16.5 vs ASME B16.47 Series B
|
Txuj |
Qhov Loj |
Qib Siab |
Daim ntawv thov |
|
ASME B16.5 |
NPE ½ – 24 |
Chav Kawm 150-2500 |
General industrial piping |
|
MSS SP-44 / B16.47 Series A |
NPE 12-60 |
Chav Kawm 150–900 |
Loj - txoj kab uas hla |
|
ASME B16.47 Series B (API 605) |
NPE 26–60 |
Chav Kawm 75–900 |
API oilfield pipeline |
Cov lus ceeb toom tseem ceeb: Series A (MSS SP-44) thiab Series B flanges tsis sib hloov tau saum NPS 26 - bolt qhov suav, sab nraud txoj kab uas hla, thiab flange thickness txhua qhov sib txawv. Nco ntsoov paub tseeb tias cov koob twg koj cov kav dej specification xav tau ua ntej xaj.
MSS SP-44 Flange Hom
MSS SP-44 npog cov flange hauv qab no. Weld caj dab flanges yuav tsum yog forged steel; Qhov muag tsis pom flanges tuaj yeem tsim los ntawm forged steel lossis steel phaj.
Hom ntau tshaj plaws rau kev pabcuam siab -siab pipeline. Lub tapered hub muab kev txhawb zog thiab tso cai rau maj mam hloov mus rau cov yeeb nkab phab ntsa. Yuav tsum tau forged steel raws li MSS SP-44.
01
Siv los txiav lossis cais qhov kawg ntawm cov kav dej. MSS SP-44 tso cai rau qhov muag tsis pom flanges tsim los ntawm forged steel lossis steel phaj, muab kev hloov pauv ntau dua hauv qhov loj-inch.
02
Swb hla cov yeeb nkab kawg thiab yog fillet-welded ob sab hauv thiab sab nraud. Kev lag luam ntau dua li lub caj dab weld tab sis txwv kom qis dua -siab thiab tsawg dua cov ntawv thov.
03
Siv nrog stub xaus; lub flange nws tus kheej tsis hu rau cov txheej txheem kua. Qhov zoo tshaj plaws yog qhov yuav tsum tau disassembly ntau zaus los yog qhov twg cov yeeb nkab yog corrosion-cov khoom siv tiv taus ua ke nrog carbon steel flange.
04
MSS SP-44 Siab-Tsuas Ntsuas Ntsuas
MSS SP-44 hais txog tsib chav kawm siab. Kev ntsuam xyuas yog nyob ntawm qib khoom siv thiab kev pabcuam kub; Cov txiaj ntsig hauv qab no sawv cev rau qhov kev ntsuas siab ntawm 38℃(100℃F) rau Qib F42 raws li qhov taw qhia siv.
|
Qib Siab |
Kev ntsuas lub ntsej muag (psi) |
Drilling Template |
Daim ntawv thov |
|
Chav Kawm 150 |
285psi ua |
Ib yam li ASME B16.5 Chav Kawm 125 |
Tsawg- cov kav dej siab |
|
Chav Kawm 300 |
740psi ua |
Ib yam li ASME B16.5 Chav Kawm 250 (tsawg dua lossis sib npaug rau NPS 24) |
Nruab nrab siab |
|
Chav Kawm 400 |
990psi ua |
Ib yam li ASME B16.5 Chav Kawm 400 (tsawg dua lossis sib npaug rau NPS 24) |
Nruab nrab-siab siab |
|
Chav Kawm 600 |
1,480 psi |
Ib yam li ASME B16.5 Chav Kawm 600 (tsawg dua lossis sib npaug rau NPS 24) |
Siab siab |
|
Chav Kawm 900 |
2,220 psi |
Ib yam li ASME B16.5 Chav Kawm 900 (tsawg dua lossis sib npaug rau NPS 24) |
Siab siab pipeline |
Nco tseg: Kev ntsuas qhov ntsuas siab txo qis thaum kub nce. Thaum twgMSS SP-44 flangesyog mated nrog li qub thiab siv ntawm qhov kub ntawm 100℃F thiab 450℃F (38℃-232 degree), lub valve lub siab ntsuas yuav qis dua qhov flange ntsuas. Nco ntsoov txheeb xyuas qhov txwv kev txwv hauv lub rooj sib txoos.
MSS SP-44 Flange Dimensions & Loj Ntau
MSS SP-44 npog qhov ntau thiab tsawg ntawm cov yeeb nkab nominal (NPS) los ntawm 12 txog 60 nyob rau hauv ob lub sijhawm. Cov txiaj ntsig DN sib raug tau teev tseg hauv qab no. Rau NPS 10 thiab me dua, qhov yuav tsum tau muaj qhov ntev thiab siab ntev yog muab los ntawm kev siv ASME B16.5.
|
NPS |
DN |
NPS |
DN |
NPS |
DN |
|
12 |
300 |
26 |
650 |
40 |
1000 |
|
14 |
350 |
28 |
700 |
42 |
1050 |
|
16 |
400 |
30 |
750 |
44 |
1100 |
|
18 |
450 |
32 |
800 |
46 |
1150 |
|
20 |
500 |
34 |
850 |
48 |
1200 |
|
22 |
550 |
36 |
900 |
50 |
1250 |
|
24 |
600 |
38 |
950 |
52–60 |
1300–1500 |
Nco tseg: NPS 22 flange qhov ntev tsuas yog muaj nyob rau hauv MSS SP -44 - qhov no tsuas yog qhov chaw rau NPS 22 saum NPS 24 kev pab them nqi.
Cov yam ntxwv tseem ceeb uas tau teev tseg hauv MSS SP-44 suav nrog sab nraud txoj kab uas hla, flange thickness (C dimension), tsa lub ntsej muag txoj kab uas hla thiab qhov siab, ntsia liaj qhov rooj lub voj voog txoj kab uas hla (PCD), tus naj npawb thiab txoj kab uas hla ntawm lub qhov ntsia liaj qhov rooj, thiab weld kawg bevel qhov ntev rau weld caj dab flanges.
Rau cov lus qhia ntxaws ntxaws los ntawm cov chav kawm thiab qhov loj me (suav nrog lub qhov ntsia hlau qhov suav, PCD, thiab flange thickness rau txhua NPS / Chav Kawm ua ke), hu rau CNCJ thov peb ua tiav MSS SP-44 dimension siv daim ntawv.
MSS SP-44 Khoom Qib
Tag nrho cov ntaub ntawv siv hauv kev tsim khoom ntawm MSS SP-44 flanges yuav tsum raug tua tag nrho steel - steel uas tau deoxidized tag nrho ua ntej casting. Qhov no ua kom muaj tshuaj lom neeg muaj txiaj ntsig zoo thiab tshem tawm cov roj porosity, uas yog qhov tseem ceeb rau kev ncaj ncees ntawm cov kav dej siab siab.
MSS SP-44 txhais cov khoom siv los ntawm qhov tsawg kawg nkaus lub zog (hauv ksi), los ntawm F36 txog F80:
|
Qib |
Min. Yield zog |
Min. Tensile zog |
Min. Elongation |
Daim ntawv thov |
|
F36 |
248 MPa / 36 ksi |
414 MPa / 60 ksi |
20% |
General pipeline |
|
F42 |
290 MPa / 42 ksi |
414 MPa / 60 ksi |
20% |
General pipeline |
|
F46 |
317 MPa / 46 ksi |
414 MPa / 60 ksi |
20% |
Lub zog nruab nrab |
|
F48 |
331 MPa / 48 ksi |
427 MPa / 62 ksi |
20% |
Lub zog nruab nrab |
|
F50 |
345 MPa / 50 ksi |
441 MPa / 64 ksi |
20% |
Lub zog nruab nrab |
|
F52 ★ |
359 MPa / 52 ksi |
455 MPa / 66 ksi |
20% |
Roj & roj pipeline |
|
F56 |
386 MPa / 56 ksi |
469 MPa / 68 ksi |
20% |
Siab -lub zog kav dej |
|
F60 |
414 MPa / 60 ksi |
517 MPa / 75 ksi |
20% |
Siab -lub zog kav dej |
|
F65 |
448 MPa / 65 ksi |
531 MPa / 77 ksi |
18% |
Siab -lub zog |
|
F70 |
483 MPa / 70 ksi |
552 MPa / 80 ksi |
18% |
Siab -lub zog |
|
F80 |
550 MPa / 80 ksi |
620 MPa / 90 ksi |
16% |
Ultra-siab{1}} zog |
Txog Qib F52
F52 yog ib qho ntawm cov kev qhia dav dav tshaj plaws rau cov roj thiab cov kav xa hluav taws xob. Nrog rau qhov tsawg kawg nkaus lub zog ntawm 359 MPa (52 ksi) thiab weldability zoo, nws muab qhov zoo sib npaug ntawm lub zog thiab kev ua haujlwm ntawm kev ua haujlwm. F52 tau ncaj qha nrog API 5L Qib X52 kab yeeb nkab - ua rau nws xaiv flange ntuj thaum lub raj xa dej lub cev yog X52.
Weld Compatibility
MSS SP-44 flanges yog tsim rau kev sib txuas rau cov yeeb nkab, fittings, thiab lwm yam flanges tsim los rau cov kev qhia hauv qab no: ASTM A105, A53, A106, A350, A381, A516, A537, A694, A707, thiab API 5L.
Carbon Equivalent (CE) yuav tsum tau
Raws li kev txheeb xyuas ladle, qhov siab tshaj plaws carbon cov ntsiab lus yog 0.30% thiab qhov sib npaug ntawm cov pa roj carbon monoxide (CE) yuav tsum tsis pub tshaj 0.48% yam tsis muaj kev pom zoo los ntawm tus neeg yuav khoom ua ntej. Yog tias CE siab tshaj 0.45%, qhov tseeb CE tus nqi yuav tsum raug ntaus rau ntawm flange.
Chemical Composition & Mechanical Properties
Cov kev txwv tshuaj lom neeg hauv qab no siv rau tag nrho MSS SP-44 flange cov ntaub ntawv (raws li ladle tsom xam), raws li ANSI / MSS SP-44-2026:
|
Element |
Min. % |
Max. % |
|
C (Carbon) |
- |
0.30 |
|
Mn (Manganese) |
0.60 |
1.60 |
|
P (phosphorus) |
- |
0.025 |
|
S (Sulfur) |
- |
0.025 |
|
Si (Silicon) |
0.15 |
0.35 |
|
Cu (kub) |
- |
0.40 |
|
Nim (Nickel) |
- |
0.40 |
|
Cr (Chromium) |
- |
0.30 |
|
Mo (Molybdenum) |
- |
0.12 |
|
V (Vanadium) |
- |
0.11 |
|
Nb (Niobium) |
- |
0.05 |
|
IB (Boron) |
- |
0.001 |
Nco tseg (2026 hloov tshiab): Qhov sib xyaw ua ke Cu + Ni + Cr + Mo txwv tau raug tshem tawm ntawm Table 1 hauv 2026 tsab, sib haum nrog ASME B16 kev xyaum tam sim no.
Hardness & Impact Testing
Qhov siab tshaj plaws hardness: HBW 235 rau txhua qib.
Tsis tas yuav kuaj qhov cuam tshuam rau Qib F42 thiab qib qis dua. Rau Qib F42 thiab siab dua, ib txheej ntawm peb cov qauv rau ib lub tshav kub steel yuav tsum tau kuaj ntawm qhov kub siab tshaj ntawm -45℃(-50℃F). Qhov tsawg kawg nkaus qhov cuam tshuam tus nqi yog 27 J (20 ft-lb); qhov tsawg kawg nkaus tus nqi piv txwv yog 20 J (15 ft-lb).
Kev kho cua sov yuav tsum tau
Kev kho cua sov kom zoo yog qhov tseem ceeb rau MSS SP -44 flanges kom ua tiav qhov sib npaug ntawm lub zog, tawv, thiab weldability - tshwj xeeb tshaj yog rau qib siab zog siv hauv kev xav tau kev pab cuam kav dej.
- Qib F42 thiab siab dua: normalized, normalized thiab tempered, quenched thiab tempered, los yog nag lossis daus kho thiab hnub nyoog.
- Qib F36 hauv Chav Kawm 400 thiab siab dua: Annealed, normalized, normalized thiab tempered, los yog quenched thiab tempered. Qhov ntsuas kub tsawg kawg nkaus: 540℃(1,000℃F).
- Kev ntsuas hydrostatic ntawm ib tus neeg flanges tsis tas yuav tsum tau, tab sis kev sib koom ua ke hydrostatic kuaj yuav ua tau txog li 1.5 × 38℃(100℃F) siab ntsuas.
MSS SP-44 vs ASME B16.47: Qhov txawv yog dab tsi?
Vim tias MSS SP-44 thiab ASME B16.47 Series A yog qhov sib npaug, qhov kev txiav txim siab tiag tiag ntawm cov engineers ntsej muag yog Series A (SP-44) piv rau Series B. Ob lub koob no muaj cov chav kawm siab tib yam tab sis cov qauv sib txawv - thiab lawv tsis sib hloov tau saum NPS 26.
|
Parameter |
Series A (MSS SP-44) |
Series B (API 605) |
|
Keeb kwm |
Qauv TSIS MUAJ: SP-44 |
API 605 |
|
Qhov Loj |
NPE 12–60 |
NPE 26–60 |
|
Cov chav kawm siab |
150, 300, 400, 600, 900 |
75, 150, 300, 400, 600, 900 |
|
Bolt Qhov (NPS 26+) |
Ntau bolt qhov |
Tsawg dua bolt qhov |
|
Flange OD |
Loj dua |
Me me |
|
Yam Kev Lag Luam |
General pipeline, hwj chim, dej |
Oilfield, chaw refinery |
|
Hloov pauv tau? |
NO saum NPS 26 |
NO saum NPS 26 |
Kev taw qhia kev xaiv: Yog tias koj cov kav dej tshwj xeeb hais txog API cov qauv lossis cov khoom siv roj av, Series B yuav xav tau. Rau cov kav dej dav dav, kev kho dej, kev tsim hluav taws xob, thiab kev siv tshuaj cog qoob loo, Series A (MSS SP-44) feem ntau yog qhov kev xaiv raug. Nco ntsoov paub meej nrog cov kav dej siv tau (piv txwv li, ASME B31.4, B31.8) lossis qhov project specification.
MSS SP-44 Flange Daim Ntawv Thov
Roj & Gas Transmission Pipelines
Thawj daim ntawv thov. Hla- lub teb chaws roj thiab roj kav yuav tsum loj - txoj kab uas hla, siab - lub zog flanges ntawm lub twj tso kua mis, qhov chaw nres tsheb valve, thiab khi- hauv cov ntsiab lus. Qib F52 thiab F60 feem ntau tau teev tseg.
Loj -Dej Pipelines
Kev xa dej hauv nroog hauv nroog thiab cov chaw kho dej kev sib txuas ntawm cov kav dej feem ntau qhia MSS SP-44 Chav Kawm 150 flanges rau qhov ntau thiab tsawg NPS 24 thiab siab dua.
Lub zog tiam
Cov kav dej loj thiab cov kav dej pub rau hauv cov chaw tsim hluav taws xob yuav tsum muaj kev sib txuas loj, siab - kev ncaj ncees flanged, qhov twg MSS SP-44 Class 600 lossis 900 flanges feem ntau siv.
Chemical & Petrochemical Cog
Loj - txoj kab uas hla txoj kab txuas txuas kab, reactors, thiab kub exchangers nyob rau hauv refinery thiab tshuaj cog kev pab cuam.
Mining & Slurry Pipelines
Siab - hnav slurry thauj pipelines tau txais txiaj ntsig los ntawm qib siab dua - qib zog (F56–F70) muaj nyob hauv MSS SP-44.
ANSI/MSS SP-44-2026: Dab tsi tshiab nyob rau hauv tsab ntawv kawg?
Tsab ntawv tam sim no, ANSI/MSS SP-44-2026, tau luam tawm thaum ntxov 2026 thiab hloov pauv xyoo 2019 tsab. Kev hloov kho 2026 feem ntau suav nrog cov lus piav qhia meej meej rau cov kev xav tau tsim hauv xyoo 2016 thiab 2019. Cov kev hloov pauv tseem ceeb suav nrog:
Source: ANSI Blog, blog.ansi.org, Lub Ob Hlis 2026
Tshooj 2 'Cov Lus Txhais' tau ntxiv raws li MSS cov cai, nrog rau tag nrho cov ntu tom ntej tau hloov pauv.
ASTM A515/A515M cov khoom siv phaj tau ntxiv rau hauv daim ntawv teev cov weld compatibility - nthuav cov khoom xaiv rau qhov muag tsis pom flange fabrication.
Qhov sib xyaw ua ke Cu + Ni + Cr + Mo txwv tau raug tshem tawm ntawm Tables 1 thiab E1 - sib haum nrog ASME B16 kev xyaum tam sim no.
Metric hloov dua siab tshiab thiab kam rau ua rau hydrostatic kuaj nyiaj pub dawb tau sib haum nrog ASME B16 cov qauv.
Cov kev xav tau ntawm qhov chaw sim tau qhia meej rau qhov sib xws ntau dua.
Yog tias koj tab tom ua haujlwm nrog cov qauv qub qub uas hais txog MSS SP-44-2016 lossis 2019, cov ntaub ntawv ntsuas qhov ntev thiab qhov ntsuas siab tseem tsis hloov pauv. Kev hloov kho xyoo 2026 yog cov ntawv kho nyob rau hauv qhov xwm txheej thiab tsis cuam tshuam rau kev yuav khoom lossis kev txiav txim siab fabrication rau cov qauv siv.
CNCJ MSS SP-44 Flanges: Peb Muaj peev xwm tsim tau
Raws li Tuam Tshoj -raws li stainless hlau flange chaw tsim tshuaj paus nrog ntau tshaj 12 xyoo ntawm kev tsim khoom, Zhejiang Chengjiu Pipeline Co., Ltd. (CNCJ) tsim MSS SP-44 flanges rau thoob ntiaj teb pipeline project. Tsis zoo li cov tuam txhab lag luam, peb tsim khoom hauv tsev nrog kev tswj xyuas tag nrho ntawm cov khoom siv taug qab, kev tshuaj xyuas qhov ntev, thiab cov txheej txheem kho cua sov.
|
Parameter |
CNCJ muaj peev xwm |
|
Qhov Loj |
NPS 12 – NPS 60 (DN 300 – DN 1500) |
|
Cov chav kawm siab |
Chav Kawm 150/300/400/600/900 |
|
Qib khoom |
F36, F42, F46, F52, F56, F60, F65, F70, F80 |
|
Hom Flange |
Weld Neck / Dig muag / Slip On / Lap Joint |
|
Hom ntsej muag |
Raised ntsej muag (RF) / Lub ntsej muag tiaj tus (FF) / Nplhaib hom Joint (RTJ) |
|
Cov qauv |
ANSI / MSS SP-44-2026 / ASME B16.47 Series A |
|
Kev sim |
Dimensional soj ntsuam, PMI, hydrostatic test (ntawm kev thov), MTC EN 10204 3.1 |
|
Lub Sijhawm Lead |
Standard Tshuag khoom: 2-4 lub lis piam; Custom size: 6-10 lub lis piam |
Txawm hais tias koj xav tau ib qho flange rau kev hloov pauv lossis cov khoom siv ntau rau cov kav dej, hu rau peb pab neeg ua haujlwm nrog koj NPS, chav kawm siab, qib khoom, thiab ntau npaum li cas. Peb muab cov ntaub ntawv pov thawj kev xeem (MTC) rau EN 10204 3.1 raws li tus qauv.sale@cncjflange.com
Cov ntaub ntawv & Qhov chaw
ANSI/MSS SP-44-2026: Hlau Pipeline Flanges. Manufacturers Standardization Society (MSS).
ANSI Blog: 'ANSI/MSS SP-44-2026: Hlau Pipeline Flanges.' blog.ansi.org, Lub Ob Hlis 2026.
ASME B16.47-2017: Loj Diameter Steel Flanges. American Society of Mechanical Engineers.
ASME B16.5-2017: Yeeb Nkab Flanges thiab Flanged Fittings. American Society of Mechanical Engineers.