Thermostatic Temp Control of Water Recirculation

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Robinasu

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Does anyone know of US available parts like this temperature controlled valve for water recirculation? I have a 4 branch DHW recirculation system that was never setup with balancing valves. I'd like to find an automatic setup the control the branch temperatures. Are there any good US solutions? It seems like this type of setup hasn't made it's way from Europe yet.

Check this out:

http://heating.danfoss.com/PCMPDF/VDD3I102_MTCV(LLC).pdf
 

Jadnashua

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Are you dealing with dedicated return lines, or using the cold water lines?

Some of those that use the cold water line have a valve that automatically does that. One might be able to be installed in a single line if there is dedicated ones.
 

Robinasu

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I do have a dedicated return line. The hot from the DHW tank splits into 4 parallel circuits, then merges to a single 3/4 return. There are not check valves or balance valves in the 4 branches, so that is bad. Plus, the whole setup is completely over-pumped and acts as a building radiator. I can't turn down the temperature, because when I do, the temperature regulation of hot water temperature varies quite a bit and people in the condo building complain.

It looks like Europe likes the temperature actuated thermostatic valves in the link in my original post. USA, not so much.
 
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