Fluid Power Symbol
: 100 lpm
: 350 bar
: on request
Proportional directional spool valves are well suited for demanding applications where high resolution, high volume flow and low hysteresis are requested. They are used in industrial hydraulics as well as in mobile hydraulics for the smooth control of hydraulic actuators.Application examples: rotor blades of wind generators, forest and earth moving machines, machine tools and paper production machines with simple position controls, robotics and fan controls
Proportionally to the solenoid current, spool stroke, spool opening and valve volume flow will increase. Proportional directional valves NG10 a re not load-compensated. The optimum spool shape and progressive characteristics curve allow sensitive motion control. To control the valve, proportional amplifiers are available (see register 1.13). The solenoid armature are held to the spool by means of a small spring in order to prevent a starting jump in case of a vertical mounting position.
Direct operated proportional spool valve in flange design NG10 acc. to ISO 4401-05 with 4 ports. The spool valve is designed to the 5 chamber principle. The volume flow is adjusted b y a proportional solenoid (VDENorm 0580). Low pressure drop due to the body design and spool profiling. The spool is made of hardened steel. The body made of high grade hydraulic casting is painted by a two component lacquer. The armature tube, the coil and the screw plug are zinc-nickel-coated.