
Inlet Sizes : 1/1/2″, 2” to 2/1/2″
Inlet Ratings :ANSI Class 150 to 4500
Outlet Sizes : 3″ to 4″
Outlet Ratings : ANSI Class 300 and 900
Orifice Sizes : –
Set Pressure Range : 50 psig to 4500 psig
Temp. Range : Up to 1150◦ F
Materials : Alloy steel body with Colmonoy® coated inconel alloy ball and seat assembly
Source : http://www.geoilandgas.com/pipeline-storage/gas-production/safety-valves