Tolerance-of-butt-welding-fittings-ASME-B16.9

Tolerance-of-butt-welding-fittings-ANSI/ASME-B16.9

Tolerance-of-butt-welding-fittings-ASME-B16-9

Tolerance-of-butt-welding-fittings-ASME-B16-9

All Fittings[Note(1) and (2)]Center-to-End DiamensionsOverall Length of Reducers and Lap Joint Stub Ends,F,HOverall Length of Caps, E180-deg Returns
Nominal  Pipe Size(NPS)DNOutside Diameter at Bevel,D[Note(3) and (4)]Inside Diameter at End [Note(3) and (5)]90-deg and 45-deg Long and Short Radius Elbows and Tees. A,B,C,M3D Radius Elbows, A,BCenter-to-Center Dimension, OBack-to-Face Demensoin, KAlignment of Ends, U
 1/2to2 1/215-65 +1.6-0.80.82323661
3to3 1/280-901.61.62323661
41001.61.62323661
5to8125-200 +2.4 -1.61.62326661
10to18250-450 +4.0 -3.23.223261062
20to24500-600 +6.4 -4.84.823261062
26to30650-750 +6.4 -4.84.836510
32to48800-1200 +6.4 -4.84.856510
All Fittings[Note(1) and (2)]Center-to-End DiamensionsNominal Pipe Size(NPS)DNAngularity Tolerance
Nominal  Pipe Size(NPS)DNOutside Diameter at Bevel,D[Note(3) and (4)]Inside Diameter at End [Note(3) and (5)]Outside Diameter of Lap,GFillet Radius of Lap,RLap ThicknessOff Angle,QOff Plane,P
 1/2to2 1/215-65 +1.6-0.80.8+0,-1+0,-1+1.6,-01/2to415-10012
3to3 1/280-901.61.6+0,-1+0,-1+1.6,-05to8125-20024
41001.61.6+0,-1+0,-2+1.6,-010to12250-30035
5to8125-200 +2.4 -1.61.6+0,-1+0,-2+1.6,-014to16350-40036
10to18250-450 +4.0 -3.23.2+0,-2+0,-2+3.2,-018to24450-6004`10
20to24500-600 +6.4 -4.84.8+0,-2+0,-2+3.2,-026to30650-750510
26to30650-750 +6.4 -4.84.832to42800-1050513
32to48800-1200 +6.4 -4.84.844to481100-1200519
GENERAL NOTES:








(a)All dimensions are in mm.







(b)Tolerances are equal plus and minus except as noted.





NOTES:









(1)The inside diameter and the nominal wall thickness at ends are to be specified by the purchaser.


(2)A minimum wall thickness of 87.5% applies unless the purchaser specifies a different wall thickness toletance.

(3)Out-of-round is the sum of absolute values of plus and minus tolerances.




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