Cut Grooving Dimensions for IPS / BS / AS / ISO /JIS / KS PIPE

Pipe O.D. (Column 2):

Maximum allowable tolerances from square of ends is 0.03” for sizes up to 3-1/2”; 0.045” for 4” thru 6”, and 0.060” for sizes 8” and above.

Gasket Seating Surface (Column 3):

The gasket seating surface shall be free from deep scores, marks, or ridges that would prevent a positive seal.

Groove Width (Column 4):

Groove width is to be measured between vertical flanks of the groove side walls.

Groove Diameter (Column 5):

The “C” diameters are average values. The groove must be of uniform depth around the entire pipe circumference.

Minimum Wall Thickness (Column 6):

The “t” is the minimum allowable wall thickness that may be cut-grooved.

Groove Depth (Column 7):

The “d” is for reference use only.  The groove dimension shall be determined by the groove diameter “C”.