The COAX MK / FK DR TÜV Certificated Valves are 3/2-way, direct actuated, safety shut-off valves featuring galvanised steel bodies and FPM & PTFE seals, designed for liquid fuel applications. With orifice sizes from DN 15 to 25, they support a pressure range of PN 0 to 40 bar and are available with threaded or flanged ports. These valves operate with a pressure-balanced spring return and switching overlap, ensuring closure within one second during voltage loss, effectively securing fuel flow. Nominal voltage options include DC 24 V and AC 230 V.