Transcription of Direct Drive Analog Control Servo Valves D633 and D634
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What moves your WorldSERVOVALVESFOR ELECTROHYDRAULIC POSITION,VELOCITY, PRESSURE OR FORCE Control SYSTEMSWITH HIGH DYNAMIC RESPONSE REQUIREMENTSISO 4401 SIZES 03 AND 05serVoValVesDIrect Drive serVoValVesD633/D634 Rev. 2, 04/20092 MOOG D633/D634 SeriesGENERALD633-D634D633 AND D634 SERIES Servo Control VALVESThe D633 and D634 Series are Direct Drive Valves (DDV) withelectric closed loop spool position Control . These Valves are throttle Valves for 3-, 4-, and 2x2-way applica-tions. They are suitable for electrohydraulic position, velocity,pressure or force Control systems including those with highdynamic response spool Drive device is a permanent magnet linear force motorwhich can actively stroke the spool from its spring centred posi-tion in both directions. This is an advantage compared with pro-portional solenoids with one force direction only. The closedloop spool position electronics and pulse width modulated(PWM) Drive electronics are integrated into the integrated electronics of the Valves is a new developmentfeaturing SMD technology with pulse width modulated (PWM)current output stage and requires a 24 VDC power valve series described in this catalogue have successfullypassed EMC tests required by EC Directive.
according to EN 60079-0, EN 60079-1 and EN 60079-7. • Ex db eb IIB+H2 T* Gb according to IEC 60079-0, IEC 60079-1, IEC 60079-7. Valves D633D available with explosion protection for Dust: • Ex II 2D Ex tb IIIC T155°C Db • Ex II 3D Ex tc IIIC T155°C Dc according to EN 60079-31, EN 600079-0. Note: Installation dimensions and electric ...
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