
Inlet Sizes : 1/2″ through 2/1/2″
Inlet Ratings : –
Outlet Sizes : 3/1/4″ through 2/1/2″
Outlet Ratings : –
Orifice Sizes : D,E,F,G,H and J
Set Pressure Range : 15 psig to 350 psig
Temp. Range : -20◦ F to 420◦ F
Materials : Cast Iron bonnet with brass base and trim
Source : http://www.geoilandgas.com/pipeline-storage/gas-production/safety-valves