
MOOG D633-313B R16KO1M0NSM2 Direct Drive Analog Control Servo Valve
This is a direct drive valve from MOOG, the model is D633-313B R16KO1M0NSM2. The D633 and D634 Series are Direct Drive Valves (DDV) with electric closed loop spool position control.

MOOG D633-313B R16KO1M0NSM2 Electro hydraulic servo valve specification:
| Manufacturer: | MOOG |
| Type: | Direct Drive Analog Control Servo Valve |
| Model: | D633-313B |
| Type Designation: | R16KO1M0NSM2 |
| Valve design | 1 stage, with spool and bushing |
| Size: | 3 |
| Ambient Temperature Range: | -20……+60 oC |
| Max. Operating Pressure Port P, A, B: | 350 bar |
| Max. Operating Pressure Port T Without Y: | 50 bar |
| Max. Operating Pressure Port T With Y: | 350 bar |
| Maximum Flow: | 75 l/min |
| Temperature Range: | -20……+80 oC |
| Step response time for 0 to 100 % stroke | ≤ 12 ms |
| Supply Voltage: | 24V DC |
| Signal: | +/- 10 V |

D633-313B R16KO1M0NSM2 control valve Main Features
• Direct drive with permanent magnet linear force motor that provides high actuating force, works in 2 directions.
• Direct operated - no pilot oil required.
• Pressure-independent dynamic response.
• Low hysteresis and high response characteristics.
• Lower power demand in and around the spool center position. This results in lower energy consumption during the majority of operating and stand by times.
• If the electrical supply fails, a cable breaks or emergency stop is activated, the spool returns to the predefined spring-centered position without passing a fully open control port position increasing safety.

Rico can supply MOOG direct valve D633 and D634, please contact us for more information!
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