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Hi,

Anyone seen this TEV before? It's approximately 20 years old, and is quite corroded. I assumed it was Danfoss as 99% of our other valves and devices are Danfoss, but can't see the similarities.

For some reason, they have made the cap and bulb from copper and brass, which has almost completely corroded away.
On the top i can read off: AMMONIA, EXPANSION VALVE, TYPE TVA. All other text is gone.

This is the TEV on our air purger. The company that built this plant is long gone unfortunately. Is installed after a strainer, also corroded and lacking in the identification department. Air purger is same story...

Mainly looking for brand. Picked it apart and looks quite clean inside. Worked fine last time i checked, but the purger itself was leaking on the solenoid for the airing line, so i was thinking of checking over everything else if i first begin with it.