Alright, learned another tidbit then. So I should choose one with a listed temperature range.
For instance a Sporlan EFV-1/2-c is an Adjustable superheat valve, R22, with an internal equalizer and sweat connection 1/4 inlet 3/8 outlet with a charge for commercial refrigeration at -10*F - 50*F
Can the lines be adapted to the size of the TXV or should I find one with exactly the sizes I need?
Would external equalizer be better? I can't imagine much pressure drop across the evap on a system that small.
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