Stainless/Copper Corrosion Question

[nds]

Hi All,

I love this forum and read it often for advice, but this is my first post. I'm installing a number of radiators in a hot water radiant system, and I'm struggling with the radiator to Pex-Al-Pex connection. The valves accept a 1/2" nipple, and I was going to use 6" 304 stainless nipples to come up through the floor connected to copper FIP fittings below the floor. But I've read a lot of conflicting information about corrosion between stainless and copper---some say a direct connection between the two will cause your entire house to melt and some say it's no problem at all.

Does anyone here have a recommendation? I'm leaning toward using chrome plated brass at this point even though they're 3x the cost.

Thanks!!

 

[hj]

I would have no issue using stainless steel, but brass would be better. Why chrome plated, will they be showing? If so, a solder coating will give a "silver" appearance.

 

[Sponsor]

 

[nds]

They will be showing, just a bit. Can't decide if it really matters for most of them because the valve takes up most of the space above the floor and the appearance of brass isn't that objectionable. But after all this work, I kind of want it to be perfect.

 

[Terry]

I've never heard that stainless had issues with copper.
Black steel or galvanized yes,

 

[nds]

Thanks!