Direct-Operated Pressure and Flow (p/Q) Control Servo Valves with Fieldbus Interface D638 and D639 Series
- 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
- Integrated digital electronics with integrated pressure transducer allows a high grade of flexibility
| Specifications | |
|---|---|
| Hydraulic Data | |
| Rated Flow | 5 to 100 l/min (1.3 to 26.3 gpm) @ ∆p 35 bar (500 psi) per land |
| Maximum Flow | 180 l/min (47 gpm) size 05 |
| Maximum Operating Pressure | 350 bar (5,000 psi) |
| Mounting Pattern | ISO 4401 Size 03 and 05 (NG 6 and 10) |
| 100% Step Response | 8 ms @ 210 bar (3,000 psi) |
| Supply Voltage | 24 VDC (18 to 32 VDC) |
| Fieldbus Interface | CANopen, Profibus and EtherCAT |
| Options | Analog Signals |
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Product Service & Repairs
Literature
Overview - Digital and Axis Control Servo Valves
Catalog - Digital Control Servo Valves with p and pQ Control - Series D638 and D639
Manual - D636/D638 Series Servo-Proportional Valves
Manual - D636 to D639 Servo Valves - Mounting-Installation-Notes
Installation Drawing - D638 Series Servovalves
Manual - Digital Interface Valves with CANopen Interface
Manual - Digital Interface Valves with EtherCAT Interface - Firmware Manual
Manual - Digital Control Valves with PROFIBUS Interface
Manual - Electrical Interfaces