MOOG C70953-011 Servo Valve Sleeve Assembly

Technical Specifications

Model:C70953-011

Brand:MOOG

Product type:Precision Servo Valve Sleeve Assembly

Material:High-strength hardened alloy steel

Bore tolerance:Micron-level precision machining

Max working pressure:350bar

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

Dimension:Matched for D661 spool

Weight:0.31kg

Operating temperature:-20℃ ~ +120℃

Storage temperature:-40℃ ~ +130℃

Relative humidity:10~90% non-condensing

Certification:CE

System compatibility

C70953-011 is MOOG original precision valve sleeve.It pairs with matched spool for MOOG D661 series two-stage servo valves,widely used in steam turbine DEH control system,fatigue test bench and high-precision hydraulic servo system.It is core spare part for servo valve overhaul.

Function

C70953-011 valve sleeve forms the matched pair with valve spool.The precision orifices on sleeve control oil port opening area,cooperate with spool to regulate hydraulic flow direction and flow rate for closed-loop hydraulic control.

Installation

Clean sleeve thoroughly before assembly.Mate sleeve and matched spool carefully,avoid scratching inner bore surface.Assemble inside valve housing,complete oil flushing,zero and gain calibration after overhaul.Keep clean and anti-static during handling.

Interface

‑Precision inner bore matched with servo valve spool

‑Component laser marking label

Feature

MOOG hardened steel valve sleeve,wear-resistant,low leakage.Typical faults:inner bore scratch,wear,debris clogging,edge burr.Inspect bore surface during overhaul.

Diagnostic

Fault phenomenon:high internal leakage,poor repeatability,zero drift.Check sleeve inner surface wear and contamination,replace sleeve assembly.

Product Brief

C70953-011 is MOOG D661 series servo valve precision hardened valve sleeve assembly.It works with matched spool,key main stage component for two-stage electro-hydraulic servo valve overhaul and replacement.