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 This pressure difference results in a pilot flow which in turn causes a spool displacement. Two-stage proportional valves are mainly used when low threshold and good dynamic response with small signals are required.

Open the catalog to page 5.

Catalog excerpts Technical Data Performance Specs. Open the catalog to page 9. Open the catalog to page 8.


Open the catalog to page 4. For maximum flow, the manifold ports P, T, A and B should have 0. The Online Industrial Exhibition.

Moog D PARO Library

The mokg pins D and E are inverting. If no enable signal is available, the spool The jet now produces a pressure difference in the control ports.

A Series Proportional Control Valves are a twostage design. The spool motion of the main stage is produced by a single-stage pilot valve.

This displacement combined with the special shape of the nozzle directs a focused fluid jet more into one receiver opening than the other. Either pin D or E is used according to the required operating direction. Open the catalog to page 3. Open the catalog to d616 7. Technical Data Performance Specs.

A current through the coil displaces the jet pipe from neutral. By combining a fast first stage, a suitable spool drive area and integrated electronics, an optimum proportional valve can be offered. Open the catalog to page 2. Meets the requirements of EN 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.


When making electrical connections to the valve shield, protective groundingappropriate measures At 0 mA command the spool is in its center position. Open noog catalog to page Open the catalog to page 6.

Pilot-Operated Servovalves for Analog Signals D661 Series

Note O-ring counterbore dia. A Series valves offer the highest flow per The other pin is connected to signal common at cabinet side. The moogg stage drain is through the annular area around the nozzle to tank. During this time more thanvalves have been delivered.