What We Do

Our process involves a complete teardown of your Moog D651-404, ultrasonic cleaning, and precise reassembly with high-quality parts to restore original performance.

What Sets Us Apart

NC Servo Tech is a dedicated repair facility specializing in both valves and electronic controls, which allows us to operate without the delays and constraints of OEM service centers.

Frequently Asked Questions

Restoration Workflow

The repair process for the Moog D651-404 includes full disassembly, diagnostic review, and replacement of failed seals, spools, or other elements. Final assembly includes leak and function testing.

  • Comprehensive Teardown: Every valve is fully disassembled for a thorough internal inspection.
  • Thorough Decontamination: Every component is put through a deep cleaning process to remove grime and buildup.
  • In-House Parts Sourcing: Many repairs use reliable components sourced from our extensive inventory of existing units.
  • Rigorous Testing: The reassembled unit undergoes rigorous leak and pressure testing to verify it performs to specification.

Testing & Diagnostics

With thirteen state-of-the-art test stands and a Hagenbush proportional valve system, we verify flow curves, hysteresis, frequency response, and additional critical parameters. On request, comprehensive performance reports and detailed graphs are available for purchase. Our performance testing ensures consistent performance.

Key Application Sectors

Our expert repair services for the Moog D651-404 are trusted across various critical sectors, including Construction, Aerospace, and Manufacturing. We understand the unique demands of valves in these environments.

Full-Spectrum Moog D651-404 Care

Beyond standard refurbishment, we offer specialized reconditioning for your Moog D651-404 unit. Our overhaul process meticulously involves actions such as expose and reassemble, and uses only high-quality replacement components, ensuring a lasting fix.

Your Service & Logistics Partner

As a top specialist for Moog D651-404 services, NC Servo Tech ensures quick resolution with typical lead times of 2 to 3 weeks. Benefit from our dedicated support team to keep your systems running smoothly.

Our Stock Advantage

With over 17,000 valves in stock, we are often able to provide immediate solutions, minimizing your downtime.

Maintenance Tips

  • Perform comprehensive fluid analysis to detect contamination early and prevent system damage.
  • Replace inline filters according to maintenance schedules to maintain proper flow rates.
  • Check valve alignment carefully to prevent undue stress on internal components.

Get an Expert Repair for Your Moog D651-404

Trust NC Servo Tech for exceptional service. Contact us today to schedule your repair and get your unit repaired.