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for the MOOG proportional valves. After external triggering this fail-safe function causes a defined metering spool position. Mechanical Fail-safe version. to install, operate and troubleshoot the Moog D Series Servo and Propor- General. The Servovalves DG, S and H Series and the Proportional Flow. Over time, Moog servo-proportional valves have undergone different Moog valves for over 10 years. . D Series, 2-stage proportional control valve.

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Open the catalog to page 9.

Technical Data Performance Specs. Either pin D or E is used according to the required operating direction. At 0 mA command the spool is in its center position. Open the catalog to page The other pin is connected to signal common at cabinet side.

A current through the coil displaces the jet pipe from neutral. Open the catalog to page 4. These proportional control valves have been proven to provide reliable control of injection and blow molding equipment, die casting machines, presses, heavy industry equipment, paper and lumber processing and other applications.


Open the catalog to page 8. The Online Industrial Exhibition.

Open the catalog to page 3. Open the catalog to page 6. Catalog excerpts Technical Data Performance Specs. Open the catalog to page 2. Open the catalog to page 7. During this time more thanvalves have been delivered.

Moog D PARO Library

If no enable signal is available, the spool Note O-ring counterbore dia. The pilot stage drain is through the annular area around the nozzle to tank.

A Series Proportional Control Valves are a twostage design. Open the catalog to page 5. The input pins D and E are inverting.

Pilot-Operated Servovalves for Analog Signals D661 Series

By combining a fast first stage, a suitable spool drive area and integrated electronics, an optimum proportional valve can be offered. When making electrical connections to the valve shield, protective groundingappropriate measures The jet now produces a pressure difference in the control ports.

The spool motion of the main stage is produced by a single-stage pilot valve.


Average surface finish value, Ra, better than Two-stage proportional valves are mainly used when low threshold and good dynamic response with small signals are required.

Meets the requirements of EN This pressure difference results in a pilot flow which in turn causes a spool displacement.

Pilot-Operated Servovalves for Analog Signals D Series

This displacement combined with the special shape of the nozzle directs a focused fluid jet more into one receiver opening than the other. For maximum flow, the manifold ports P, T, A and B should have 0. A Series valves offer the highest flow per