Tapping Techniques for Ductile Iron Pipe

Direct service tapping of operating cast and Ductile iron piping systems has been a common practice for more than 100 years. Ductile iron pipe can be readily field cut and tapped to fit normal and emergency situations.

Check the Resource Shelf to access our more information on tapping techniques.

Tapping for Ductile Iron Pipe Encased in Polyethylene

For the last 30 years, more and more direct taps have been performed on polyethylene-encased iron pipe. Following the proper procedure ensures the quality of the polyethylene protection when making direct service connections.

Direct Tapping Ductile Iron Pipe vs. Polyvinyl Chloride Pipe

Direct tapping tests were conducted on Ductile iron pipe and PVC pipe. Cost, time, internal pressures, material strength, and other factors were compared.

Direct Tapping of 6-inch Pressure Class 350 Ductile Iron Pipe

DIPRA performed carefully controlled and fully observed laboratory tests on Ductile iron pipe using direct tapping procedures.