壓力管道培訓之材料4應(yīng)用標準體系（Materials for pressure piping training 4 application standard system）

壓力管道培訓之材料4應(yīng)用標準體系(Materialsforpressure

pipingtraining4applicationstandardsystem)

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Pressurepipingmaterialpart

Fourthchapters

Applicationstandardsystem

Firstpages,13Pages

4applystandardsystem,4.1commonlyusedstandardsystemin

theworld

Germany4.1.1(DIN)andtheformerSovietUnion(gammaOCT)

usingthestandardsystemofGermany(DIN)andtheformerSoviet

Union)(DIN)4.1.2America(ANSI)applicationstandardsystem

applicationstandardsystem4.1.3ofJapan(JIS)application

standardsystemapplicationstandardsystemof4.1.4

InternationalOrganizationforStandardization(ISO)

applicationofthestandardsystemofinternationalstandard

(British)4.1.5Organization(BS)andFrance(NF)byBritish

standardsystem(BS)andFrance(NF)(BS)andFrance(NF)

applicationstandardsystem

4.2standardsystemcommonlyusedinChina

4.2.1petrochemicalpetrochemical(SH)industrystandard

systemrelativelycompleteseriesofindustrystandard

relativelycompletesystemofindustryapplicationseries

4.2.2standardsystemofChemicalTechnology(HG)industry

standardsystemisthemostcompleteseriesofindustry

applicationstandardsystem-themostcompleteseriesof

industrystandard4.2.3mechanicalsystem(JB)applicationthe

standardsystemisnotperfectseriesofindustrystandard

systemisnotperfectthestandardsystemof4.2.4seriesof

industryapplicationofnationalstandardsystem(GB)

applicationstandardsystemstandardsystemstandardsystem

applicationapplicationstandardrelativelycompletesystemof

relativelycomplete4.2.5pressurepipestandardsystem

applicationcompatibility

Pressurepipingmaterialpart

Fourthchapters

Applicationstandardsystem

Secondpages,13Pages

Four

Applicationstandardsystem

Atpresent,mostpressurepipesandtheircomponentshavebeen

serializedandsupportedbycorrespondingapplication

standards

Selectionofpipelinematerialdesignshouldfirstconsiderthe

questionisaseriesofpressurepipingandcomponentsstandard.

Theapplicationofstandardsystem.Apipesystem(Road)set

standardsforeachelement.Thesestandardsshouldincludepipe

fittingsseriesseriesstandard,standard,andflange

connectorseriesstandard,standardvalves.Thesestandards

areusedinapipelinethroughcertainrules,theirmutual

connection,mutualcooperation,andbasicparametersofthe

pipelineanditscomponentsaredetermined.Thesestandards

especiallyinstandardpipeandflangeandflangestandard

standardquasiGuanZibiaothemostrepresentative,whichis

thebasisofstandardpipeflangestandardanditsapplication

standard.Belowthestandardpipeandflangestandard,

applicationstandard.Atpresent,therearemanycountriesin

theworldontheapplicationofstandardsystem,different

countriesanddifferentindustrieshaveTheapplicationof

differentstandardsandstandards,somealotofdifference

betweenthem,andthusnotsupportingtheuseofswaptoalot

oftroubletotheuser.Therefore,thefirststepistochoose

thedesignofpressurepipingapplicationsstandardsystem,and

asaunifieddesign,soastoavoidtherelevantprofessional

standardsforothersystemusesnotinterchangeableandlead

toerrors.Theapplicationofstandardsofdifferentcountries

canbedividedintotwocategories.Thepipesthatthepipe

diameterisdividedintoseriesofinternationalgeneralseries

(largediameterseries)inchpipe;thepipediameterisdivided

intoseriesofInternationalSeries(InternationalSeries)

inchtube;commonlyusedseriesofdomestic(commonlyused

seriesofdomestic(smalldiameterseries)

DN

Internationalanddomestic

Metric(ormetrictubes)metrictubes(ormetrictubes)

350356377400406426,450457480500508530,600610630

152218

202725

253432

324238

404845

506057

657673

808989

100114108

125140133

150168159

200219219

250273273

300324325

TheEuropeanandAmericanflangeflangeflangepressurerating:

PN0.10.250.611.62.546.

310.025.040.0mpaand16.0歐式法蘭（din）壓力等級：pn2.0

cl1503006.85.010.025.015.0400600900150042.02500

mpapsi美式法蘭（ansi）

由此可以看出，無論是法蘭還是管子，上述兩個系列或兩個體系是

不能混合使用的.由此可以看出，無論是法蘭還是管子，上述兩個

系列或兩個體系是不能混合使用的.

ansiastm美國國家標準化組織.americansocietyoftesting

materials,美國材料實驗協(xié)會

?鋼管壁厚表示方法鋼管壁厚表示方法有管子表號，鋼管壁厚尺

寸鋼管壁厚表示方法有管子表號，鋼管壁厚尺寸和管子重量三種方

法管子表號1）是以管子表號〃sch〃表示壁厚.管子表號是管子

設(shè)計壓力與設(shè)計溫度下材料許用應(yīng)力的比值乘以1000,并經(jīng)圓整后

的

壓力管道材料部分

第四章

應(yīng)用標準體系

第3頁共13頁

數(shù)值.即：sh=p/[6]tX1000ansib36.10壁厚等級：schlO,

sch20,sch30,sch40,sch60,sch80,schlOO,schl20,schl40,

schl60十個等級；ansib36.19壁厚等級：sch5s,schlOs,sch40s,

sch80s四個等級；2）以鋼管壁厚尺寸表示中國，iso,日本部分鋼

管標準采用

3）是以管子重量表示管壁厚度，它將管子壁厚分為三種：a.標準重

量管，以std表示b加厚管，以xs表示c.特厚管，以xxs表

示.對于dnW250mn的管子，sch40相當于std,dn（200mm的管

子，sch80相當于xs.4.1國際上常用的標準體系隨著我國對外改

革開放和加入wto,各行業(yè)與國際上聯(lián)系越來越多，為了更好地與

國際接軌，就要求從事壓力管道設(shè)計的人員對國際上通用的和先進

的相關(guān)標準體系有所了解.下面介紹幾個主要的應(yīng)用標準體系.

4.1.1德國及前蘇聯(lián)應(yīng)用標準體系a.德國（din）?管子：大外徑

系列?管法蘭：歐式法蘭壓力等級：pn

0.1,0.25,0.6,1.0,1.6,2.5,4.0,6.4,10.0,16.0,25.0,32.0,40.0,,

,,,,公稱直徑：dn6?4000mm法蘭密封面：平面，凸臺面，凸面，

梯槽面，橡膠環(huán)連接面，法蘭密封面：平面，凸臺面，凹凸面，梯

槽面，橡膠環(huán)連接面，透鏡面及膜片焊接面7種法蘭型式：平焊

板式，平焊松套式，翻邊松套式，對焊翻邊松套式，對焊環(huán)翻邊松

套式，法蘭型式：平焊板式，平焊松套式，翻邊松套式，對焊翻邊

松套式，對焊環(huán)翻邊松套式，對焊式，螺紋連接式，對焊式，螺紋

連接式，整體式及法蘭蓋9種?常用的標準

din2410.t.1din2448din2458din2500din2501.t.1din2519管子

及鋼管標準概述無縫鋼管尺寸及單位長度質(zhì)量焊接鋼管尺寸及

單位長度質(zhì)量法蘭法蘭一般說明連接尺寸

13個等級

鋼法蘭交貨技術(shù)條件

壓力管道材料部分

第四章帶螺紋的鋼管配件

應(yīng)用標準體系

第4頁共13頁

din2980

b.前蘇聯(lián)（Foct）前蘇聯(lián)（）?管子：小外徑系列?管法蘭：

歐式法蘭壓力等級：pn

0.1,0.25,0.6,1.0,1.6,2.5,4.0,6.4,10.0,16.0,20.0,,,,,公稱直

徑：dn6~3000mm法蘭密封面：全平面，凸臺面，凹凸面，聚四氟

乙烯用樺槽面，法蘭密封面：全平面，凸臺面，凹凸面，聚四氟乙

烯用梯槽面，透鏡面及橢圓型環(huán)連接面7種法蘭型式：平焊板式，

Sliponloose,loosetypeflange,welded,threadedconnection,

flangetype:flatplatewelding,sleevetype,flangesleeve

type,welded,threaded,integralandflange7.Germanyandthe

formerSovietUnionDINstandardpipeflangepipeflange

standardgammaOCTcanbeusedinpairsPNislessthanorequal

to16grade,buthasnotinterchangeable（becauseofoversize

different）.WiththedisintegrationoftheformerSovietUnion,

theapplicationofstandardsystemofgammaOCTiscurrently

intheinternationalengineeringhavebeenrarelyused.The

applicationof4.1.2standardsystemofAmericanStandard

SystemApplication(ANSI)AmericannationalstandardANSI

B16.5'steelpipeflangesandflangedfittings“isarelatively

complete,matureandinternationalpopular,universaladvanced

standards.ThestandardsandotherrelatedANSI,API,ASTM,MSS

standardsystemapplicationofpressurepipeformedbyalarge

numberoftestOnthebasisofexperimentalresearch,andhas

experienceddecadesofpractice,soitisascientificand

advancedstandard,andiswidelyaccepted.Thevarious

countries:largediameterpipeseries(ANSIB36.10andANSI

B36.19)JBserieswithour11gradesize

Nominaldiameterrange:(DN6"DN2000)mmwallthickness:1)is

arepresentationwiththetablenumber"Sch"wallthickness;

2)issaidtothepipewallthicknessofpipeweight.Thepipe

flangeflange:Americanpressurerating:150300400600900150CL

2500Psi7grades

Nominaldiameter:DN15?600mmflangesealingsurface:convex

concaveandconvexsurfaces((table),convexsurface,groove,

metalringconnectionflangesealingsurface:convextable(RF)

convexsurface(MF)groove(TG)metalringjointface,tongue

andgrooveface)(),flangetype:flattypetype:flattype,

flanged,socketwelding,buttwelding,threadedconnection,

flangecoverandsleevetype

TheUnitedStateshasusedthestandardANSIstandardsystem

application:ANSI/ASMEB36.10ANSI/ASMEB36.19ANSI/ASMEB16.9

seamlessandweldedsteelpipeweldedsteelpipeandstainless

steelseamlesssteelpipefittingsmanufacturingfactory

4

6

Pressurepipingmaterialpart

Fourthchapters

Applicationstandardsystem

Fifthpages,13Pages

ANSI/ASMEB16.11ANSI/ASMEB16.28ASME/ANSIB16.34ASME/ANSI

B16.5ASME/ANSIB16.36ASME/ANSIB16.42ASME/ANSIB16.47

ASME/ANSIB16.20ASME/ANSIB16.21ASME/ANSIB18.2.1ASME/ANSI

B18.2.2APIstd605APIstd526APIstd598APIstd599APIstd600

APIstd602APIstd603APIstd608APIstd609APIstd6DMSSSP-44

Socketweldingandthreadedfittingsforgingsteelbuttwelding

ofsmallradiuselbowandbackelbowflangeconnection,

threadedconnectionandweldingconnectionvalvepipeflanges

andflangedfittingsorificeflangenodularcastironflanges

andflangedfittingsoflargediametersteelpipeflangewith

flangewinding,coatedgasketandringwithmetalgasketsfor

pipeflangesnonmetallicflatgasketssixsquareandhexagon

headboltsandscrewnutsixsquareandhexagonheadflange,

flangecoverflangesteel1eakageinspectionandtestpressure

valveflangeconnectionsandweldingmetalplugconnection

flangeandbuttwelding.Thesteelgateofsmallsteelgate

(compactmetalgate)theballtypelug150poundsofcorrosion

inflangeconnectionvalveflangeandbuttweldingandhubbed

flangetoclamptypebutterflyvalvepipevalvespecification

4.1.3JapanJapanstandardsystemapplicationapplication

standardsystem(JIS)-tube:largediameterseries(JISG3454,

JISG3458,JISG3459)andmostofthesameANSI

Seamlesssteelpipe:nominaldiameter(DN6"DN650mm)said:the

methodofseamlesssteelpipewallthicknesspipeschedule

number"Sch"representsthethicknessofcarbonsteelandalloy

steelJISG3454,JISG3458:SchlO,Sch20,Sch30,Sch40,Sch60,

Sch80,SchlOO,Schl20,Schl40,Schl60JISG3459:Sch5s

stainlesssteelgrade,

schlOs,sch20s,sch40s,sch80s,schl20s,schl60s7個等級；10

壓力管道材料部分

第四章

應(yīng)用標準體系

第6頁共13頁

焊接鋼管公稱直徑：(dn350~dn2000)mm焊接鋼管壁厚表示方法：

直接用壁厚數(shù)值表示.?管法蘭：(jisb2201,jisb2220等)自

成體系，既不屬于〃美式法蘭〃，也不屬于〃歐式法蘭〃公稱直徑：

(dnlO"dnlOOO)mm公稱壓力等級：2k,5k,10k,consequently,20k,

30k,40k,63k共8個等級

法蘭密封面：法蘭密封面：光滑面，大凸臺面，小凸臺面，凹凸面，

梯槽面5種，法蘭型式：平焊式，法蘭型式：平焊式，承插焊式，

對焊式，螺紋連接式，松套式及法蘭蓋6種

Xjis應(yīng)用標準體系與ansi和din等都不能配套使用.為了彌補

這個缺陷，日本石油學會編制了一套jpi標準，它基本上等效采

用了ansi/api應(yīng)用標準體系，故它能與ansi互換.?日本應(yīng)用

標準體系jis中常用的標準有：

jisg3452jisg3454jisg3455jisg3456jisg3457jisg3458jis

g3459jisg3468jisb2201jisb2202jisb2210jisb2220jisb2302

jisb2311jisb2312jisb2313jisb2316jisb2401jisb2404普

通用途碳鋼管承壓用碳鋼管承壓用碳鋼管高溫用碳鋼管電弧焊

碳鋼管合金鋼管不銹鋼鋼管電弧焊大直徑不銹鋼鋼管鐵素體材

料管法蘭壓力等級管法蘭尺寸鐵素體材料管法蘭基礎(chǔ)尺寸鋼制管

法蘭鋼制螺紋連接管件普通用途的鋼制對焊管件鋼制對焊管件

鋼板制對焊管件承插焊管件。形環(huán)管閥蘭用纏繞式墊片

壓力管道材料部分

第四章壓縮石棉墊片

應(yīng)用標準體系

第7頁共13頁

jisb3453

4.1.4國際標準化組織（iso）的應(yīng)用標準體系國際標準化組織（）

?管子：基本上屬大外徑系列（iso4200）**標準（iso4200）系

列1基本上采用了ansi的尺寸，僅dn>1100mm時（已不太常用）

則使用了〃小外徑系列〃的尺寸.?管法蘭：同時包括了〃美式法

蘭〃和〃歐式法蘭〃兩個系列.（iso7005-1）它代表了當前世界法

蘭標準的應(yīng)用趨勢.公稱壓力等級：第一系列：pn

1.0,1.6,2.0,5.0,11.0,15.0,26.0,42.0第二系列:pn

0.25,0.6,2.5,4.0共4個等級.8個等級；

第一系列為基本系列，第二系列為限制系列.

X兩個系列中：pnO.25,pnO.6,pnl.0,pnl.6,pn2.5,pn4.0六

個等級屬〃歐式法蘭〃

pn2.0,pn5.0,pnl1.0(600psi),pnl5.0,pn26.0(1500psi),

Pn42.0屬〃美式法蘭〃；二者在結(jié)構(gòu)尺寸和密封面尺寸上不能互換

的.?iso應(yīng)用標準體系中常用的標準有：

iso6708iso7268iso4200isoll27iso3183is06759iso7005-1

iso7483iso3419iso5251iso7121isol0497管件公稱尺寸定義管

件公稱壓力定義焊接和無縫平端鋼管不銹鋼鋼管尺寸和單位長

度

尺寸公差和單位長度質(zhì)量

石油和天然氣工業(yè)用鋼管熱交換器用無縫鋼管金屬管法蘭符合

iso7005標準的管法蘭密封墊片非合金鋼和合金鋼管件不銹鋼對

焊管件法蘭型鋼制球閥閥門試驗防火試驗要求

4.1.5英國和法國應(yīng)用標準體系a.英國應(yīng)用標準體系(bs)?管

子：大外徑系列

壓力管道材料部分

第四章

Applicationstandardsystem

Eighthpages,13Pages

BS1600

ItsdiameterrangeandwallthicknessaregradedwithANSI

B36.10/B36.11;

BS3600isbasicallythesameasusingtheISOstandard,the

rangeofdiameterandwallthicknessoftheflangewithIS04200.

gradingcriteria:includingthe''Americanflange"and

''Europeanflange"twoseries.BS1560BS4504isbasicallythe

sameasthestandardANSI,thestructureandsealtypewithANSI

B16.5;basicallyidenticalwiththetheDINstandard,the

structureandsealtypewithDIN2500.

Theoilindustrywiththesizeofthesteeltubeconfinedby

thesizeandmassofunitlengthpressureweldedsteelpipeand

seamlesssteelpipewithstainlesssteelweldedandseamless

steelpipeandthepipeflange(flangedpipeflanges(European

American)flange)forgedsteelpipefittingsbearingfittings

usedinpetroleumindustrypetroleumindustrywithpiecesof

pipethreadandsocketweldingfittings

Acommonstandard-BS:

BS1600,BS3600,BS3605.1,BS1560,BS4504,BS1740.1,BS1965,

BS1640,BS3799

B.Franceappliedstandardsystem(NF)applicationofthe

Frenchstandardsystem(NF)issimilarwiththeBritish

standardsystemapplication.4.2commonlyusedstandardsystem

atpresent,thestandardapplicationofpressurepipelineand

itscomponentsinthecountryalot,butnotcomplete.With

standardpipeflangeasanexample,thecommonstandardisthe

nationalstandard(GB).Machineryindustrystandard(JB),

petrochemicalindustrystandard(SH)andchemicalindustry

standard(HG).Thesestandardshavetheirowntemperature-

pressuregauge,sealingsurfacesizeandpipesize,poor

interchangeabi1itybetweenthem,someevencannotmatchedvery

well.Inordertointroducetheapplicationofthesestandards

thecommonstandardsystemforpressurepipingapplications.

4.2.1petrochemicalindustrystandardsystemapplication-

sizestandards(SH3405)belongtolargediameterseries”

SH3405isequivalenttotheIS04200standard,sowhentheDN

islessthan1100mm,itcanbematchedwiththeANSIB36.1/36.19

standard.SH3405diameterandwallthicknessgrading:

No.1234steeltubetypeausteniticstainlesssteelseamless

steelpipesteelpipeweldingofcarbonsteel,alloysteel

seamlessausteniticstainlesssteel,steelpipenominal

diameterrangeof10~40010~60080^1000150^2000thickness

Sch5sgrade,weldingalloysteelSchlOs,Sch20s,Sch40s,Sch80s,

Sch20,Sch30,Sch40,Sch60,Sch80,SchlOO,Schl20,Schl40,

Schl60,XXS2.0^12mm4.0"18mm

Pressurepipingmaterialpart

Fourthchapters

Applicationstandardsystem

Ninthpages,13Pages

Theflangestandard(SH3406):anominalpressureAmerican

flange”:PN1.0,PN2.0(CL150),PN5.0(CL300),PN6.8(CL400),

PN10.0(CL600),nominalpressurePN15.0(CL900),PN25.0

(CL1500),PN42.0(CL2500):DN15"DN1500mmnominaldiameter

nominaldiameteroftheflangesealingsurfaceconvexthetable,

theflangesealingsurface:whenDN=600,convextable,convex

surface,plane,groove,ringgroove5convexconcaveandconvex

table,thewholeplane,groove,DN=650,1convexconvexmesa

mesa58grades

Flangetype:flangetype:whenDN=600,welding,buttwelding,

socketwelding,threadedconnection,looseweldingbutt

weldingof1DN=650

TheSH3406equivalentusingtheANSIandAPI605standard

B16.5,.SH3406inthestructuresizeandsealtypeonANSIand

B16.5/API605hasgoodinterchangeability,itcanwithANSI,API,

MSSandotherpipingcomponentssupportingtheuseofthe

standard.ButbecauseourmaterialstandardSH3406using

standardmaterialratherthantheUnitedStates(ASTM)

therefore,thetwotemperature-pressuregaugewithalittle

deviation,soinconsideringthetwoexchange,shouldpay

attentiontoandchecktheirtemperature-pressure

correspondingtotheallowablevalue.Thestandardstandard

systemapplicationinpetrochemicalindustry

sh3401sh3402sh3403sh3404sh3405sh3406sh3407管法蘭用石

棉橡膠板墊片管法蘭用聚四氟乙烯包覆墊片管法蘭用金屬環(huán)墊片

管法蘭用緊固件石油化工企業(yè)鋼管尺寸系列石油化工鋼制管法蘭

管法蘭用纏繞式墊片

sh3408鋼制對焊無縫管件sh3409sh3410鋼板制對焊管件鍛鋼制

承插焊管件

石化行業(yè)應(yīng)用標準體系屬于一個比較完整的應(yīng)用標準體系.因為它等

效采用了標準因此代表著先進和發(fā)展方向.又由于它的法蘭(ansi,

apish3406)能與標準閥門匹配使用.通過近幾年的應(yīng)用證明，這

套應(yīng)用標準體系是一個科學的，先進的，同時又是可操作性好的標

準體系.4.2.2化工行業(yè)應(yīng)用標準體系?管子尺寸系列標準

(hg20553):"the系列屬于大外徑系列〃b:“系列屬于小外徑系

列〃?法蘭標準同時包含歐式法蘭和美式法蘭

歐式法蘭(歐式法蘭(hg20592?hg20605)?)

壓力管道材料部分

第四章

應(yīng)用標準體系

1310

壓力等級：pn0.25,0.6,1.0,1.6,2.5,4.0,6.3,10.0,16.0,25.0等

10個等級公稱直徑：dnlO~dn2000mm法蘭型式：板式平焊，帶頸

平焊，帶頸對焊，整體式，承插焊，螺紋，對焊環(huán)松套，平焊環(huán)松

套，法蘭蓋，襯里法蘭等10種密封面型式：突面，凹凸面，梯槽

面，環(huán)連接面，全平面等種5.它可以與閥門配套使用jb.美式

法蘭標準(hg20615-hg20626)美式法蘭標準公稱壓力：pn2.0,

pn5.0,pnll.0,pnl5.0,pn26.0和pn42.0公稱直徑：法蘭型式：

dnl5~1500帶頸平焊，帶頸對焊，整體法蘭，承插焊，螺紋，松套

等種6,6個壓力等級

密封面型式突面，凹凸面，梯槽面，環(huán)連接面，全平面等5種型

式※化工行業(yè)壓力管道應(yīng)用標準體系也是一個相對比較完整

的標準體系，而且經(jīng)歷了若干年的生產(chǎn)實踐檢驗，具有成熟的使用

經(jīng)驗.由于它同時具有〃大外徑系列〃和〃小外徑系列〃，〃歐式法

蘭〃和〃美式法蘭〃兩個系列，故其使用面比較廣它既可以與國外

的，ansi,din,iso等標準配合使用又可以與國內(nèi)的jb,gb,sh,

等標準配合使用.?化工行業(yè)應(yīng)用標準體系中的常用標準.

hg20537.1hg20553t21634hg/hg/hg/hg/t21632t21635t21631

t21637hg/hg/t21577hg2059220605hg20615~20626

hg2060620612hg2062720633hg20613hg20634奧氏體不銹鋼焊接

鋼管選用規(guī)定化工配管用無縫及焊接鋼管尺寸選用系列鍛鋼制承

插焊管件碳鋼，低合金鋼元縫對焊管件鋼制有縫對焊管件鍛鋼制

承插焊，螺紋和對焊接管臺化工管道過濾器快速特種接頭鋼制管

法蘭（歐洲體系）鋼制管法蘭（美洲體系）鋼制管法蘭用墊片（歐

洲體系鋼制管法蘭用墊片鋼制管法蘭緊固件（）（美洲體系）歐洲

體系）鋼制管法蘭緊固件（美洲體系）

4.2.3機械行業(yè)應(yīng)用標準體系

壓力管道材料部分

第四章

應(yīng)用標準體系

1113

?管子尺寸?法蘭標準

屬于〃小外徑系列〃歐式法蘭

壓力等級：pn0.25,0.6,1.0,1.6,2.5,4.0,6.3,10.0,16.0,20.0等

10個壓力等級公稱直徑：dnl5?dnl600mm法蘭型式：整體，板式

平焊，對焊，平焊環(huán)板式松套，對焊環(huán)板式松套，

Flange,looseflangeandflangecover,suchas7typesof

sealingsurface:flat,convex,concaveandconvexsurface,

tongueandgroovesurface,ringconnectingsurfaceof5

YouJBnopipesizecorrespondingfittingsseriesstandard,

standard,systemisnotperfect,needtosupportGBsystem;JB

standardflangedifferentlevelsofmaterialsincludedinthe

sametemperatureandpressuregauge,andlostitsscientific

nature;JBstandardvalvetogivemodelslimitedselection

series(reflectedfromtheproductassembly),whichlimitsits

use,andlostitsflexibility.Fromtheapplicationofmany

productionequipment,theuseoftheperformanceofJBvalve

isalsounsatisfactory;JBandANSIandthevalvecannotuse,

noteasytointegratewiththeworld;thecommonstandardsof

machineryindustryintheapplicationofstandardsystem:

JB/T74JB/T75JB/T79.T79.4JB/T81JB/T82.1~82.4JB/T83JB/T84

JB/T85JB/T86.「86.2pipeflangetechnicalconditionsof

pipelineflangetypewholecaststeelflangeplateweldedsteel

pipeloosesteelpipeflanges4.0,6.3,10.OMPaweldingring

groovefacelooseplatesteelpipeflangeswith0.25,0.6MPa

flangeloosesteelpipesteelpipeflanges,flangewelding

steelpipeflangeswithflat0.25,0.6,1.0,1.6,2.5MParingtype

flange,

GasketsforJB/4700to4703pressurevesselsflanges,JB/T87?90,

JB4704?4706pipeflanges,gasketsforpressurevessels

Applicationof4.2.4nationalstandardsystem-pipesize

standardseriesGB17395"belongstothelargediameterseries.

Theflangestandard(GB/T9112-2000)including:Europeanand

AmericanflangeflangedividedintoseriesI,IIseriesIas

the“bigdiameterseries〃，inordertomatchthestandardof

SHandIIforsmallseries;diameterseries”,inordertomatch

withtheJBstandard.

Pressurepipingmaterialpart

Fourthchapters

Applicationstandardsystem

Twelfthpages,13Pages

Europeanstyleflange:dividedintoseriesI,seriesII,

Europeanstyleflangenominalpressure,nominaldiameter,PN,

0.25,0.6,1.0,1.6,2.5,4.0,6.3,10.0,16.OMPa,DN10~2000mm9

grades

Flangetype:Overall,hubbedthreaded,buttweldingandhubbed

welding,plate,flatplateloosering,buttplateloosering,

flangeringlooseplateflangecoverand9sealtype:plane,

suddensurface,convexsurface,tongueandgroovefaceflange

America:aseriesofI(outerdiameterAmerica)flangenominal

pressurenominaldiameterPN2.0,5.0,11.0,15.0,26.0,42.OMPa

DN10~600mm6grade4.

Flangetype:Overall,hubbedthreaded,buttweldingandhubbed,

hubbedsocketwelding,buttweldingneckflangecoverring

looseand7sealtype:plane,suddensurface,convexsurface,

groove,ringjointface5.

ItcanbasicallycovertheJBstandardandHGstandard''European

system"standard,tocreatetheconditionsforthereplacement

ofthetwostandard;determinethetemperature-pressure

ratingvalueisChinesematerialsandmaterialsandmaterials

inEuropeAmericathe,'Europeanflange"and"American"flanges,

materialperformanceiscompared.TheIS07005-1specifiedin

thecorrespondingmaterialpressuretemperatureparameters.

Thenationalstandardofpressurepipingsystemisarelatively

completestandardsystem.Itisdividedintostandardfittings

A,Btwoseries,Aseries"bigdiameterseries”,inorderto

matchtheSHstandardBseriessmalldiameterseries”,in

ordertomatchwiththeJBstandard.TheChinanationalstandard

systemapplicationstandard

GB12459,GB/T13401,GB/T14626,GB/T14382,GB/T