This standard specifies the requirements for materials, dimensions, manufacturing, and performance testing for wrought copper and cast copper alloy solder-type fittings used in plumbing. It covers a wide range of fittings like elbows, tees, and couplings intended for use with copper tubes in water supply systems.
Specifies the requirements for copper and copper alloy fittings suitable for use in plumbing installations.
Quick Reference Values
Hydrostatic Test Pressure1.7 MPa for 10 seconds
Minimum Copper Content (DHP Grade)99.90 %
Tolerance on Angles± 1 degree
Stress Relief Temperature (Wrought Fittings)250 to 280 °C
Practical Notes
Ensure fittings carry the ISI mark as a confirmation of quality and compliance with the standard.
These fittings are intended for joining by soldering or brazing; proper surface preparation and flux application are critical for a leak-proof joint.
Verify the fitting material (wrought copper or cast alloy) is appropriate for the intended service pressure and environment.