The DKLO Series control valve features a Class IV shutoff up to 400 psig; a compact, multi-spring design; and an epoxy-coated pneumatic actuator. The valve is available in two models: the single-seat bronze model with union end connections, available in sizes from 1⁄2 to 2 in.; and the single-seat cast iron model with flanged connections, available in sizes 1-1/2 through 4 in.