Unibody Ball Valve, Screwed Ends, Reduced Port, Pressure Rating 2000 WOG / 150 WSP, Temprature Range -20 to 450 F, Fire Safe certified to API 607-4th Edition, Conforms to MSS SP-110, Tested acc. ASME B16.34, Available Sizes (1/4" - 2"). Materials: Body & Ball Retainer: Stainless Steel A351-CF8M, Ball & Stem: Stainless Steel 316, Seat: RTFE.