Pressure Reducing Valve GP series / Air Loaded, 17 Bar, Size 1/2" ~ 4"

Type : Air Loaded
Application : Steam
Inlet Pressure : 17 Bar
Reduced Pressure : 0.014 ~ 13 Bar
Temperature : 232 ~ 316 C
Flow Rate : 52 ~ 13,816 Kg/Hr
Turn Down Ratio : 100 : 1
Size : 1/2 ” ~ 4”
Connection : Screw NPT
Body : Bronze, Cast Iron, Ductile Iron, Cast Steel, Stainless Steel

Leslie GP series Air Loaded Pressure Reducing Valve has a wide rangeability as it is Air Loaded instead of Spring.
http://www.lesliecontrols.com/Products/PressureReducing/GSeries.htm#:~:text=Leslie%20GP%20Series%20valves%20are,from%20an%20air%20loading%20panel.