Method and apparatus for cathodic protection of metal piping

Details Method and apparatus for cathodic protection of metal piping Method and apparatus for cathodic protection of metal piping

C - Chemistry, Metallurgy

23

F

204/187, 285/52

C23F 13/02 (2006.01) F16L 58/00 (2006.01) F16L 58/18 (2006.01)

Patent

CA 1194449

ABSTRACT OF THE DISCLOSURE According to the present invention a cathodic protection system for metal piping systems and fittings therefor is possible which is easy to install and manufacture. The system for fitting uses a unique sacrificial washer installed on the bolts used to fasten the fitting and includes a nonsacrificing portion to maintain the mechanical connection during and after depletion of the sacrificing metal. A unique ring anode is also taught which is secured to the bellmouth of a section of pipe and to provide an extension thereof and can be factory or field installed. Preferrably each anode is designed to protect two connected pipe sections or a pipe section and fitting.

458680

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