Proportional directional spool valves are well suited for demanding applications where high resolution, high volume flow and low hysteresis are requested. They are implemented in indus-trial hydraulics as well as in mobile hydraulics for the smooth control of hydraulic actuators. Mini-3 valves are used where both, reduced

pressure relief valve in the reduced pipe. Di-rectly operated pressure reducing valves also keep the reduced pressure stable, even under very difficult operating conditions. Mini-3 valves are used where both, reduced dimensions and weight are important. FUNCTION The spool, located in the pilot operated main

The standard valves are also available in explosion and corrosion protection executions, have a modular design and can be adapted to specific customer requirements with a wide range of options. For the simple and inexpensive control of a proportional valve, Wandfluh has developed the digital amplifier electronics PD3. The device can be…

The valves have their applications in hydraulic systems in which the pressure frequently has to be changed. The facility for remote control and signal processing from process control systems enable economical solutions to problems with repeatable sequences. NG3-Mini valves are used where both, reduced dimensions and weight are important. FUNCTION

Direct operated proportional throttle valve in flange or sandwich construction. With the solenoid deenergised, the control spool is held in the closed position (DN) or open position (DO) by a spring. The ch-ange of the electric current is followed by a proportional volume flow change.

Proportional directional valves NG3-Mini are not load-compensated. The optimum spool shape and progressive char-acteristics curve allow fi To control the valve Wandfl uh proportional am-plifi ers are available (see register 1.13). DESCRIPTION Direct operated proportional spool valve in fl ange design NG3-Mini according to Wandfl uh

NG3 way valves are used where low weight and a very compact (small) build are of importance. Typical applications are in machine tools, level-control systems and tunnel robots. Our valves feature very low leakage-oil rates and are designed to withstand pressures to 315 bar. The 4/3-way valve is an EXAMPLE for way valves realized in series.

Pilot operated proportional pressure reducing valves NG3-Mini. Flange and sandwich con-struction according to Wandfluh standard with 4 ports. Incorporated are proportional pressure reducing cartridges size M18x1,5 according to Wandfluh standard. Adjustment by Wandfluh proportional solenoids (Standard VDE 0580).

Sandwich type throttle valves can be used anywhere where volume flows have to be infinitely controlled in both directions without taking pressure fluctuations into account. These sandwich valves are ideal for machine tools and also all types of handling operation. Mini-3 throttle valves are used wherever light,

Proportional pressure relief valves, proportional pressure reducing valves NG3-Mini. Pilot or direct operated proportional pressure relief valve in flange or sandwich construction. When the operating pressure adjusted by means of the proportional solenoid is reached, the valve opens and connects the protected line with the drain to the tank.