When pipe is cut in the field, the cut end may be readily
conditioned so that it can be used to make up the next joint.
The outside of the cut end should be bevelled about 1/4 inch
at an angle of about 30 degrees (Figure 1). This can be quite
easily done with a cut-off saw or a portable grinder. This operation
removes any sharp, rough edges which otherwise might damage the
gasket.
The ANSI/AWWA Standard for Ductile Iron Pipe requires
only factory gauging of the bell and spigot ends. Accordingly,
pipe selected for field cutting should also be field gauged in
the location of the cut. In the field, a mechanical joint gland
or an O.D. tape can be used as a gauging device. Canada Pipe supplies,
with each load, pipe that has been "gauged full length" at
the plant. These lengths are marked with paint on the bell face
and can be used for cutting. |