Regulator 44-1300 series / Single Stage, SS 316, 310 Bar, Cv 2, Size 1/2" ~ 1"

Type : Piston, Single Stage
Inlet Pressure : 310 Bar
Reduced Pressure : 20.7 ~ 172 Bar
Temperature : -26 ~ 104 C
Size : 1/2" ~ 1"
Connection : Screw NPT, Flange ANSI
Body : Stainless Steel

Tescom 44-1300 series regulator features High Pressure High Flow.
https://www.emerson.com/en-us/catalog/tescom-44-1300