ANSI-ASME-welding-neck-flange-welding-end-type参考标准规范

HEBEI HAIHAO GROUPISO.ABS.CE/PED APPROVEDMengcun,Cangzhou,Hebei,ChinaProfessional Steel Piping SolutionHAIHAO GROUPwww.haihaopiping.comEmail:sales@haihaogroup.comGeneral ASME/ANSI B16.5 B16.47Weld Neck Flanges-Welding Ends0.25in3.05 nm)min10°±10.25in(3.05mm)mn0.12 in min radius45°max37.5°±2.537.5°±2.545°ma-7 max7°mc0.75in19.05mmj0.06±0.03in0.06±0.03in[1.52±0.76mm(1.52±0.76mmjBASME/ANSI B16.5 (NPS 1/2 to 24)Weld Neck FlangeASME/ANSI B16.5(NPS 1/2 to 24)Weld Neck FlangeBevel (with no backing ring)for Wall Thicknesses (t)Bevel (with no backing ring)for Wall Thicknesses (t)from0.19to0.88in(4.83to22.35mm).>0.88in(22.35mm.sope1:3ma对Slope 1:3 (max]10±10.12 in min radus-37.5°±2.537.5°±2.50.75in19.05mmj0.06±0.03in0.06±0.03n(152±0.76mm(1.52±0.76mmjEASME B16.47 and MSS SP-44(>NPS 24)Weld NeckASME B16.47 and MSS SP-44(>NPS 24)Weld NeckFlange Bevel (with no backing ring)for WallFlange Bevel (with no backing ring)for WallThickness (t)=0.19 to 0.88 in (4.83 to 22.35 mm).Thicknesses(t)>0.88 in(22.35 mm).Tolerances on welding end dimensions(ASME/ANSI B16.5 and B16.47,and MSS SP-44)DimensionRangeToleranceinmm≤NPS5+0.09,-0.03+2.29,-0.76E(outside diameter atwelding end)NPS 6 to 24+0.16,-0.03+4.06.-0.76NPS 26+021,-0.06+5.33,-1.52BNPS 12 to 18+-0.03±0.76B>NPS 20+0.12,-0.06+3.05,-1.52t(thickness at weld bevel)All>87.5%Notet=Nominal wall thickness of the pipe.Additional thickness at the weld bevel (up to 0.5 x t)may be provided on the insideor outside diameter (or partially on both)of the hub if it is used with light walled higher strength pipe.Hub diameter,F,mayalso be increased.