control valve type SG09, DN50; PN10/40; NO; material: AISI 316Ti/AISI 316Ti; fixed disc AISI 316Ti coated; sliding disc carbon material; kvs-value 20 (40%); characteristic linear; diaphragm actuator 125cm²; digital positioner; 2-wire; 4-20mA; ATEX II 2G Ex ia IIC T4 Gb, IP 65; incl. earthing connection; Version for gaseous hydrogen; feedback module 4-20mA