Steel/Copper corrosion in hydronic heating system.
Steel/Copper corrosion in hydronic heating system.
(OP)
All, Please forgive me as this is more of a plumbing system question but I have not found a suitable answer to this question in my efforts so any help you could offer is greatly appreciated.
I have a home hydronic baseboard heating system that is run with galvanized tubing and soldered directly to copper fittings at the heating elements. This system has been in place for 50 years with no apparent signs of corrosion at any of the joints. What is the reason that no electrolytic corrosion takes place? The system is a sealed hot water system running between 100 and 180 degrees.
Thank-you for any help you may offer.
I have a home hydronic baseboard heating system that is run with galvanized tubing and soldered directly to copper fittings at the heating elements. This system has been in place for 50 years with no apparent signs of corrosion at any of the joints. What is the reason that no electrolytic corrosion takes place? The system is a sealed hot water system running between 100 and 180 degrees.
Thank-you for any help you may offer.





RE: Steel/Copper corrosion in hydronic heating system.
ADVANTAGES OF CLOSED SYSTEMS
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Corrosion Prevention & Corrosion Control
RE: Steel/Copper corrosion in hydronic heating system.
This is of course a good reason NOT to flush and re-fill your system periodically! The secret to keeping it in good shape is to keep it TIGHT and add as little fresh water (and hence fresh oxygen) as you possibly can.
RE: Steel/Copper corrosion in hydronic heating system.
When inspecting a hydronic system, if lots of makeup water has being used over time say due to a collapsed pressure tank, you are almost guaranteed to find rotten pipes and or boiler on the inside.
RE: Steel/Copper corrosion in hydronic heating system.
We anticipate daily jacket water to reach a minimum 60-70deg C. Altitude 2000m.
Intention is not to flush the jacket or transfer water.
Our debate is if this is warm enough to expel oxygen from this stagnant water heat transfer medium??
We are gauging the materials to use for manufacturing the system