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How do I identify defective TRV brand?

tplazer
Member Posts: 3
Customer with overheating baseboard radiator, TRV is old & dead. No name at all on the control head unscrewed head off baseboard, no identification anywhere. I don't want to drain system to change main body, want to replace head.
0
Comments
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A photo or two would help.0
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looks like an old Danfoss. Maybe remove the white plastic and find a brand underneath. Most brands use the same thread now a days.Bob "hot rod" Rohr
trainer for Caleffi NA
Living the hydronic dream0 -
The product in the photo is not from Danfoss, take a picture showing the end/face of the thermostatic operator's handle and another showing the side of the valve as there is often a logo on these items.0
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