Direct-Operated Servo Valves for Analog Signals D633 and D634 Series
ISO 4401 SIZE 03 AND 05
- Directly driven by linear force motor: No pilot flow required
- Linear force motor with high force range (improves operating limits): No flow limitations
- Directly driven design: Pressure-independent dynamic performance
- Low current consumption at and near hydraulic null
- Spool is in spring-centered position at loss of power supply: Actuator stops
| Specifications | D633 | D634 |
|---|---|---|
| Mounting pattern | ISO 4401 size 03 | ISO 4401 size 05 |
| Hydraulic Data | ||
| Maximum operating pressure – port P, A, B | 350 bar (5,000 psi) | |
| Rated flow at ∆pN 35 bar (500 psi) per spool land | 5 to 40 I/min (1.3 to 10.6 gpm) | 60 to 100 I/min (15.9 to 26.4 gpm) |
| Maximum flow | 75 I/min (19.8 gpm) | 180 I/min (47.6 gpm) |
| Step response time for 0 to 100 % stroke | ≤ 12 ms | ≤ 20 ms |
| Electrical Data | ||
| Supply voltage | 24 VDC (19 to 32 VDC) | |
| Rated signal options | +/-10 V, +/-10 mA and 4-20 mA | |
Contact Moog Industrial
Product Service & Repairs
Literature
Catalog - Direct Drive Analog Control Servo Valves
Manual - Explosion Proof Proportional Valves - D633K, D634K and D635K Series
Data Sheet - D633/D634 Series Direct Drive Servovalves
Datasheet - Servo Valve Hazardous Location Certifications
Installation Drawing - D633 Series Servovalves
Installation Drawing - D634P Series Servo-Proportional Valves