• Steam rating: 150 psi WSP • Blow-out-proof stem design • ISO 5211 Mounting pad • Body: ASTM A351 Gr.CF8M I A216 WCB • Ball: SS316 • Stem: SS304 • Seat: Reinforced Teflon • End Connections: Threaded End/Socket Weld End/Butt Weld End • Working Pressure: 1000 psi • Temperature Range: -50° to 450°F • Padlocking device • TEST STANDARD:API 598 • Vacuum Service to 28" Hg Carbon steel ball valves are suitable for high pressure or temperature applications. Rated for 1000PSI with PTFE seats and a 150PSI steam rating. 304 stainless steel handle and nuts with a high quality carbon steel body.