BS-3293-standard-weld-neck-flange-slip-on-flange-dimensions参考标准规范

HEBEI HAIHAO GROUPISO.ABS.CE/PED APPROVEDMengcun,Cangzhou,Hebei,ChinaProfessional Steel Piping SolutionHAIHAO GROUPwww.haihaopiping.comEmail:sales@haihaogroup.comBS3293:1960British Standard BS 3293:1960-Carbon Steel Pipe Flanges (over 24 inches nominalsize)for the Petroleum Industry,covers Class 150 lb to 600 lb weld neck and slip onflanges.Dimensions and TolerancesTolerances on flange dimensions(BS 3293:1960)ToleranceDimensioninmmG(raised face diameter)±7640.40+4.76.-0Weld Neck andC (flange thickness)+3h6,-0Slip On FlangesD (overall length)±1B3.18(pages 8-56 toE(outside diameter at welding end of weld neck hub)+532,132+3.97.-0.798-59)B(inside diameter of weld neck flange)+18.16+3.18.-1.59B(inside diameter of slip on flange)+16.-0+1.59.-0Ring Joint FacingL (depth of groove)+164.-0+0.40.-0on Weld Neck andM (width of groove)±0.008Slip On Flanges±0.20(see below)K(pitch diameter of groove)±0.0050.13Ring Joint Facings-BS 3293DNoteValues for minimum flange thicknessC,and overall length,D,are detailed23±in the flange tables.For ring joint tolerances see above.RR=1/16 in (0.40 mm)max,cornerradius at bottom of groove.Ring joint facing dimensions-BS 3293Class (Ib)RaisedGrooveWeightFace150300400600JequnNK61kg/pieceFaceDiameterPitchDepthWidthClassClassClassNominal Pipe Size(NPS)Diameter300Ib400Ib600IbminminininWNEWNEWNFmmmmmmmmSlip onSlip onSlip on262626R9331B29'121225323494468096749.312.7198304417282828R94331831121/22532360409518860.4800.112.719.8333364482303030R95361/83331422532917.6857.212.719.8绷323232R9689362932465539697914.423.0425482622343434R97403438911629325366087351035.0965.214.323.0492540670363636R984340/429325956898001092.21022.323.0548621764NotWeights are based on manufacturer's data and are approximate.