GB/T 8464-2008e鐵制和銅制螺紋連接閥門

ICS2306001

J16..

NationalStandardofthePeolesReublicofChina

p’p

GB/T8464—2008

ReplaceGB/T8464—1998andpartlyreplaceGB/T15185—1994

Castironandcoppervalveswith

screwedconnections

鐵制和銅制螺紋連接閥門

EnlishTranslation

(g)

Issuedate2008-12-23Imlementationdate2009-07-01

:p:

IssuedbyGeneralAdministrationofQualitySupervisionInspectionand

,

QuarantineofthePeoplesRepublicofChina

’

StandardizationAdministrationofthePeoplesRepublicofChina

’

GB/T8464—2008

Foreword

SAC/TC188isinchargeofthisEnglishtranslation.IncaseofanydoubtaboutthecontentsofEnglish

translationtheChineseoriginalshallbeconsideredauthoritative

,.

ThisstandardreplacestheGB/T8464—1998Valvewithfemalescrewendsforwaterheatingsystem

inwholeandpartlyreplacesGB/T15185—1994Castironandcopperalloyballvalves

.

Inadditiontoanumberofeditorialchangesthefollowingtechnicaldeviationhavebeenwithrespect

,

totheGB/T8464—1998andGB/T15185—1994thepreviousedition

().

—Changedthetitleofthestandard

;

—Addedtypicalstructureinthestructuraltypesuchasgatevalveglobevalveandballvalve

,;

—Addedpressure-temperatureratedvalueofcopperalloy

;

—Addeddimensionsacrosswrenchflatsofpipethreadhead

;

—Changedtherequirementofminimumwallthicknessofvalvebody

;

—Requirementofminimumdiameterofvalvestem

;

—Addedthesanitaryrequirementsofvalvesondomesticdrinkingwaterpipeline

;

—Changedthetestmethodandinspectionrequirements

;

—Addedinstallationperformancerequirementsofvalves

;

—DeletedallthecontentsofflangedballvalvesgiveninGB/T15185—1994

.

ThisstandardwasproposedbyChinaMachineryIndustryFederation

.

ThisstandardwaspreparedbySAC/TC188NationalTechnicalCommitteeonvalvesof

StandardizationAdministrationofChina

.

Thepreviouseditionsofthisstandardareasfollows

:

—GB8464—1987GB/T8464—1998

,;

—GB/T15185—1994

.

Ⅰ

GB/T8464—2008

Castironandcoppervalveswith

screwedconnections

1Scope

Thisstandardspecifiestheclassificationtechnicalrequirementstestmethodinspectionrulesmark-

,,,,

ingpackagingtransportationandstorageofcastironandcoppergateballandcheckvalveswith

,,,

screwedconnections

.

Thisstandardappliesto

:

—Threadedgatestopballandcheckvalveshereinafterreferredtoasvalves

,,().

—ValvesofgreycastironandmalleablecastironwithnominalpressurePN16andnominaldimen-

≤

sionDN100

≤.

—ValvesofductilecastironwithnominalpressurePN25andnominaldimensionDN100

≤≤.

—CopperalloyvalveswithnominalpressurePN40andworkingtemperature180℃

≤≤.

—Theworkingmediumiswaternon-corrosiveliquidairsaturatedvaporetc

,,,,.

2Normativereferences

Thefollowingnormativedocumentscontainprovisionswhichthroughreferenceinthistextconsti-

,,

tuteprovisionsofthisstandardFordatedreferencesubsequentamendmentsexcludingcorrec-

.,(

tionsorrevisionsofanyofthesepublicationsdonotapplytothisstandardHoweverpartiesto

),,.

agreementsbasedonthisstandardareencouragedtoinvestigatethepossibilityofapplyingthemost

recenteditionsofthenormativedocumentsindicatedbelowForundatedreferencesthelatestedi-

.,

tionofthenormativedocumentreferredtoapplies

.

GB/T1047Piping