DresserConsolidated”s Series 3500 electromatic ball valve is designed toprovide automatic or manual overpressure protection for steam boilersystems. It can also be used to assist startup and shutdown venting.Inlet sizes are 1.5 inches, two inches, and 2.5 inches, and they arerated ASME Class 1500 though 4500. Outlet sizes are three inches andfour inches, and they are rated ASME Class 300 through 900. Bore sizesrange from .875 through 2.000. Reduced bores are an option. The valvesupports a max. temperature of 1,100 F. Materials of construction arealloy steel body with a titanium alloy seat and ball. The valve iscertified ASME B & PVC Section I.