Flange-control valve; NC; Material: 1.4408, Seal PTFE; Flange PN40; DN 50mm; Kvs-value 28 (100%), Characteristic equal percentage, Actuator diameter 80mm; Medium temperature -30...+170°C; Length 230mm; Operating pressure 0-3bar; Digital positioner; 4-wire; 4-20mA; Position indicator 4-20mA