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
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 12 ms @ 210 bar (3,000 psi)
 
Electrical Data
Supply Voltage 24 VDC (18 to 32 VDC)
Rated Signal Options +/-10 V, +/-10 mA and 4-20 mA