Model 2623077 is a 5/2 way single solenoid spring return pneumatic valve manufactured by NORGREN Germany. The anodized aluminum spool valve body provides stable operation even with slightly contaminated instrument air, working within 2~8 bar marine air pressure range. Equipped with IP65 AC220V solenoid coil, it resists engine room oil mist, humidity and salt fog. When power cuts off, internal spring automatically resets air circuit to guarantee marine equipment safety. Widely used for marine ventilation dampers, pipeline control valves and hatch actuators as original replacement spare parts.