Dielectric Union Required?
#1
07-26-09, 09:22 AM
Dielectric Union Required?
Stainless Steel manifold, copper supply and return lines.
Closed loop radiant system.
Do I need to put a dielectric union between the stainless and copper?
Thanks for any help.
Best regards,
Scott
Closed loop radiant system.
Do I need to put a dielectric union between the stainless and copper?
Thanks for any help.
Best regards,
Scott
#2
07-26-09, 11:09 AM
Some people swear by dielectric unions. Some people swear that they cause more problems than they solve.
Stainless and copper shouldn't pose much of an issue. They are close to each other on the galvanic table.
I would opt for no dielectric union.
Stainless and copper shouldn't pose much of an issue. They are close to each other on the galvanic table.
I would opt for no dielectric union.
#4
07-26-09, 10:14 PM
It is not needed on a closed heating system at all, even between steel and copper.
It is used on the domestic hot water between dissimilar metals because a fresh water system is constantly introducing new water. The hot side of a house domestic water system corrodes more than the cold.
It is used on the domestic hot water between dissimilar metals because a fresh water system is constantly introducing new water. The hot side of a house domestic water system corrodes more than the cold.
