Appplication General service for controlling liquids and gases, with severe service capability and extensive range of alloy materials Style Single-port with integral flanges, stem-guide , seat retainer, quick-change trim Size 1/2" ~ 4" Ratings ANSI Class 150 / 300 End Conn. Integral RF Material 1/2" and 3/4" : SST 1" to 4" : WCC, 316L, Alloy 20, Monel, Hastelloy, 304L, Etc. Trim Material Depend on body material Shut-off Class (ANSI/FCI 70-2) Class IV Standard Class V Optional with metal seat Class VI Optional with soft seat Available actuator type Diaphragm 657 / 667 Piston 585CR / 585C