Operating Pressure

Does anyone know the operating pressure of the CKD Double Solenoid Valve from AndyMark?
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Acording to the AndyMark product page-
Maximum Pressure: 125 psi

Minimum operating pressure appears to be 29 psi
Maximum working pressure appears to be 101 psi (but we’re limited to 60 psi anyway)

^ But according to H in R84, you can have no more than 60psi operating pressure.

We’ve gotten these to cycle down to ~20 PSI, but 30 PSI is a good working minimum