Size 15 mm (1/2") to 50 mm (2"). End connection Screwed BSP (f)/ flanged End. Construction Body ANSI S.S.304 Investment Casting. Trim ANSI S.S. 304/316. Gland Self Compression Gland. Seating Standard P.T.F.E. Optional Glass Filled Teflon Viper Ring P.T.F.E. System Parameters Fluids Air, Water, Oil, Steam, Corrosive, Liquids Compatible to MOC & Seallings Temperature Up to 1800C. (max.) Leakage As per ANSI B 16.104-1976. Table 2, Bubble Tight, Class VI. Actuator Type Spring & Piston Type Pneumatic Actuator. Actuator Cover ANSI S.S.304/ Pressing Actuator Flange ANSI S.S.304 / Investment Casting. Actuator Spring IS 4454 Grade III, duly pressed. Actuator Pressure 3.5 to 8 Kgs / Cm2. Operating cy/mm 15 mm, 20 mm, 25 mm up to 600 cy/hr. 35 mm & 50 mm up to 600 cy/hr. (Tested on air, on other fluids this figure may vary). Air Quality Lubricated / Non-lubricated.