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Identify this old hydronic radiator valve?

Thomsa
Member Posts: 8
Looks similar to a honeywell unique valve but not quite since the valve is not at the manifold (not sure “manifold” is the right term here). The valve seems to only do a half turn.
0
Comments
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Standard valve and return elbow on a manifold. Looks like it does basically the same thing without infringing on Honeywell's patents.
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