ASSE/IAPMO/ANSI/CAN 1079-2024 
Performance Requirements for Dielectric Pipe Unions 

ANSI Approved: October 2024 
SCC Approved: November 2024 

Dielectric Pipe Unions are used to join dissimilar pipe materials to prevent the flow of galvanic current or to isolate sections of pipe from stray currents which could cause accelerated corrosion and premature failure of plumbing components and associated piping. These devices are metallic and join metallic pipe in a similar manner to standard pipe unions and flanges, with the added ability to electrically insulate one pipe section from another.

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A hard copy version of this standard is also available.