MOOG C70935-001 Servo Valve Spool Assembly

Technical Specifications

Model:C70935-001

Brand:MOOG

Product type:Precision Servo Valve Spool Assembly

Material:High strength hardened alloy steel

Tolerance:Micron-level machining precision

Max working pressure:350bar

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

Dimension:Custom for D661 valve body

Weight:0.28kg

Operating temperature:-20℃ ~ +120℃

Storage temperature:-40℃ ~ +130℃

Relative humidity:10~90% non-condensing

Certification:CE

System compatibility

C70935-001 is MOOG original precision spool assembly.It fits 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

C70935-001 spool assembly is the main flow control element of servo valve.Spool displacement changes the opening area of oil port,regulates hydraulic flow direction and flow rate to control hydraulic actuator movement.

Installation

Install spool carefully inside valve sleeve during overhaul,avoid scratching the precision mating surface.Assemble after thorough cleaning and oil flushing.Perform zero and gain calibration after assembly.Keep clean and anti-static during handling.

Interface

‑Precision cylindrical mating surface with valve sleeve

‑Component laser marking label

Feature

MOOG hardened steel servo valve spool,low friction and wear resistance.Typical faults:surface scratch,wear,sticking,edge chipping.Inspect surface condition during overhaul.

Diagnostic

Fault phenomenon:internal leakage,valve stuck,poor repeatability,zero drift.Check spool surface wear and contamination,replace spool assembly.

Product Brief

C70935-001 is MOOG D661 series servo valve precision hardened steel spool assembly.It is critical flow control component for two-stage electro-hydraulic servo valve overhaul and replacement.