Directly controlled, load-compensated proportional flow control valve as a screw cartridgewith thread M42x2 for countersinking according to ISO7789. The adjustment of the volume flowis carried out by a Wandfluh proportional magnet (VDE standard 0580). The cartridge body is made of steel. Almost linear volume flow increase and low hysteresisare characteristic of these valves. A special surface coating guarantees yougood corrosion protection as well as wear protection and very good sliding properties of the pressure compensator and throttle piston.The magnetic coil is coated with zinc-nickel.