Servo-Proportional Valves Moog Series D681, D682, D683, D684, D685
with integrated electronics
The proportional valves of the D680 series are throttle valves for 2-, 3-, 4- and 5-way applications. These valves are suited to electrohydraulic position, speed, pressure or power regulation, particularly in the face of high dynamic requirements. With the directly controlled DDV pilot valve of the D633 series, a further important step has been taken in the direction of robustness and energy-saving.

Nominal size NG10-32
Nominal flow (@ 70 bar delta p) 30 to 1500 l / min
Response time (@210bar for 0-100% stroke) 10 to 40 ms