Moog D633-A Series, User Manual

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3 Product Description Function and mode of operation
© Moog GmbH User Manual "D633-A Series" (CA80942-001; Version 1.0, 12/08) 11
3 Product Description
3.1 Function and mode of operation
Function of the valves:
throttle valves
The valves of the D633-A series are direct drive servovalves (DDV: D irect
D rive V alve). The valves are throttle valves for 2-, 3-, 4- or even 2x2-way appli-
cations.
They are suitable for electrohydraulic position, speed, pressure and force con-
trol even for high dynamic requirements. They control flow.
3.1.1 Representative depiction of the valve
Representative depiction
of the valve
Figure 1: Representative depiction of a direct drive servovalve
Item Designation Further information
1 Grounding screw Ö Chapter "8.3 Grounding screw", page 44
2 Valve connector X1 Ö Chapter "8.2 Valve connector X1", page 43
3 Spool
4 Bushing
5 Permanent magnet linear
force motor Ö Chapter "3.1.2 Permanent magnet linear force motor",
page 12
T…Y Ports Ö Chapter "7.2.2 Mounting pattern of mounting surface",
page 37