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Pipe PreparationGroove DimensionsROLL GROOVESPECIFICATIONS NOTESFOR JAPANESE INDUSTRIALSTANDARD PIPE (JIS)For Complete InformationRequest Publication 25.08ODBABCTSTANDARD ROLL GROOVE SPECIFICATIONS – JAPANESE INDUSTRIAL STANDARD PIPE @†1 2 3 4 5 6 7 8NominalSizemmInchesDimensions – mm/InchesPipe Outside Diameter O.D.AGasket Seat± 0.76BGrv. Width± 0.76CGroove DiameterBasic Maximum Minimum ± 0.03 ± 0.03 Maximum MinimumDGrooveDepthref.TMinimumAllow.Wall Thk.MaximumAllow.FlareDiameter200A 216.3 217.9 215.5 19.05 11.91 211.6 211.0 2.34 2.77 220.78 8.515 8.578 8.484 0.750 0.469 8.331 8.306 0.092 0.109 8.69250A 267.4 269.0 266.6 19.05 11.91 262.6 262.0 2.39 3.40 271.810 10.528 10.591 10.497 0.750 0.469 10.340 10.313 0.094 0.134 10.70300A 318.5 320.1 317.7 19.05 11.91 313.0 312.2 2.77 3.96 322.812 12.539 12.602 12.508 0.750 0.469 12.321 12.291 0.109 0.156 12.71@ Always refer to the I-100 handbook for current grooving specifications.† On roll grooved pipe, Allowable Pipe End Separation and Deflection from center line will be ½ values listed for cutgrooved pipe.IMPORTANT NOTE:Only the above are provided as shown. Other JIS sizes are similar to ANSI, DIN, etc..Exaggerated for ClarityDGROOVE DIMENSION NOTES:Column 1: Nominal JIS pipe sizeColumn 2: Metric (JIS) Outside DiameterThe outside diameter of roll grooved pipe shall not vary more than the tolerance listed. For (JIS) metric pipe,the maximum allowable tolerance from square cut ends is 1.52 mm for sizes 200 mm and above,measured from true square line.Column 3: Gasket SeatThe pipe surface shall be free from indentations, roll marks, and projections from the end of the pipe to thegroove, to provide a leak-tight seal for the gasket. All loose paint, scale, dirt, chips, grease and rust must be removed.It continues to be Victaulic’s first recommendation that pipe be square cut. When using beveled pipe contactVictaulic for details. Gasket seat “A” is measured from the end of the pipe. IMPORTANT: Roll grooving of beveled endpipe may result in unacceptable pipe end flare. See column 8.Column 4: Groove WidthBottom of groove to be free of loose dirt, chips and scale that may interfere with proper coupling assembly.Corners at bottom of groove must be radiused. For (JIS) metric pipe, 1.3R mm for 200 mm and up.Column 5: Groove Outside DiameterThe groove must be uniform depth for the entire tubing circumference. Groove must be maintainedwithin the “C” diameter tolerance listed.Column 6: Groove DepthFor reference only. Groove must conform to the groove diameter “C” listed.Column 7: Minimum Allowable Wall ThicknessThis is the minimum wall thickness which may be roll or cut grooved.Column 8: Maximum Allowable End Flare DiameterMeasured at the most extreme tubing end diameter. Measured at the most extreme pipe enddiameter square cut or beveled.SECTION 15: PIPE PREPARATION15-25WWW.VICTAULIC.COM