Reply To: dielectric unions

The Tank dielectric unions Reply To: dielectric unions


I know that a plastic lined steel nipple has conductivity but a dielectric union ,as designed, should electrically insulate the copper supply line from the tank. Since I last posted, I checked new dielectric unions and found that the flange on the brass insert can easily touch the inside of the steel housing of the union if not perfectly centered when installed. It seems that ginding a millimeter off the diameter of the brass flange would make it impossible for it to touch the steel and yet still insure a good seal with the plastic washer inside the union.

Water Heater Rescue

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