Stainless Steel Quarter-turn L- and T-Port Ball Valves. RS Pro Stainless Steel L and T Port Ball Valves used for controlling flow and are excellent choice for shut-off applications. These ball valves are durable and perform well even after long periods of time. Available in a variety of sizes. Operating Temperature Range: -15 to +232 C Pressure Rating WOG: 68 bar Ball and Stem - AISI 316 Stainless Steel Gland Nut, Handle, Stop-bolt and Lock Plate - AISI 304 Stainless Steel Body Seal, Seal, Thrust Washer and Stem Pack Material - PTFE Handle Washer-Bolt Material - ASTM A36 For "L" port valves see RS 4991865 , RS ; 499-1871 499-1871 , RS ; 499-1887 499-1887 , RS ; 499-1893 499-1893 For "T" port valves see RS ; 499-1938 499-1938 , RS ; 499-1944 499-1944 , RS ; 499-1950 499-1950 , RS ; 499-1966 499-1966