MOOG D633-318B Electro-Hydraulic Servo Valve

Technical Specifications

Model:D633-318B

Brand:MOOG

Product type:Direct Drive Electro-Hydraulic Servo Valve

Max working pressure:350bar

Working medium:Mineral hydraulic oil,phosphate ester fire-resistant oil

Input signal:4-20mA

Weight:3.74kg

Operating temperature:-20℃ ~ +80℃

Storage temperature:-40℃ ~ +130℃

Relative humidity:10~90%

Certification:CE

System compatibility

D633-318B belongs to MOOG D633 series direct drive servo valve.It is widely used in material fatigue test bench and precision hydraulic closed-loop control system.It is complete replacement spare part for hydraulic equipment overhaul.

Function

D633-318B adopts permanent magnet linear force motor direct drive structure.It converts current command signal into proportional hydraulic flow,high control precision and fast response.It adjusts oil flow and direction to realize closed-loop regulation of force,pressure and position for industrial hydraulic equipment.

Installation

Mount valve on standard hydraulic manifold.Connect P,T,A,B hydraulic ports and electrical connector.Flush oil circuit before commissioning,complete zero and gain calibration.Take anti-static protection during handling.

Interface

‑Hydraulic P,T,A,B oil ports

‑Threaded circular electrical connector

‑Valve laser marking label

Feature

MOOG D633 series direct drive servo valve,high accuracy,low hysteresis,excellent dynamic performance.Typical faults:zero drift,internal leakage,nozzle blockage,force motor failure.Inspect oil cleanliness and valve performance regularly.

Diagnostic

Fault phenomenon:output unstable,pressure fluctuation,slow dynamic response,valve no action.Check oil contamination,spool condition and linear force motor.

Product Brief

D633-318B is MOOG D633 series direct drive electro-hydraulic servo valve.With integrated electronic closed-loop feedback,high precision,compact hydraulic control component for industrial closed-loop servo system overhaul and replacement.