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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Average surface finish value, Ra, better than Open the catalog to page 4. During this time more thanvalves have been delivered. Open the catalog to page 8. Either pin D or E is used according to mooog required operating direction. For maximum flow, the manifold ports P, T, A and B should have 0. By combining a fast first stage, a suitable spool drive area and integrated electronics, an optimum proportional valve can be offered.


This pressure difference results in a pilot flow which in turn causes a spool displacement. Open the catalog to page 3.

Open the catalog to page 6. When making electrical connections to the valve shield, protective groundingappropriate measures Open the catalog to page 9.

Pilot-Operated Servovalves for Analog Signals D661 Series

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

Catalog excerpts Technical Data Performance Specs.

A current through the coil displaces the jet pipe from neutral. The input pins D and E are inverting. The other pin is connected to signal common at cabinet side. Note O-ring counterbore dia. Open the catalog to page 7. Open the catalog to page 2.

The jet now produces a pressure difference in the control ports. A Series valves offer the highest flow per Open the catalog to page At 0 mA command the spool is in its center position. This displacement combined with the special shape of the nozzle directs a focused fluid jet more into one receiver opening than the other.


Pilot-Operated Servovalves for Analog Signals D Series

The pilot stage drain is through the annular area around the nozzle to tank. Two-stage proportional valves are mainly used when low threshold and good dynamic response with small signals are required.

If no enable signal is available, the spool The Online Industrial Exhibition. Meets the requirements of EN Technical Data Performance Specs.

Open the catalog to page 5. A Series Proportional Control Valves are a twostage design.