About This Unit

Whether the issue is age, wear, or contamination, the MOOG D661-363D can often be restored. NC Servo applies the same structured approach to every rebuild.

About Our Shop

NC Servo operates independently, so we’re not tied to manufacturer delays or restrictions. That means more flexibility when your system is down.

50+ years of expertise in MOOG D661-363D Valve Repair

Frequently Asked Questions

Turnaround time varies by model and condition. Contact us for a timeline specific to your unit.

Send the unit in whatever condition it’s in. We clean everything during teardown before inspection begins.

Yes. If the unit can’t be repaired, we contact you with options before doing anything further.

Rush and priority service options exist. Availability depends on current workload, so contact us early.

Even if the tag is worn off, we can often match the unit based on shape, size, and internal configuration.

Rebuild Steps

The process begins with disassembly and visual evaluation. We then clean, replace worn pieces, and reassemble the valve to restore its function.

  • Final Performance Verification: After reassembly, each valve undergoes bench-testing against published performance specs.
  • Leak and Pressure Testing: The reassembled unit is leak-tested and pressure-tested to verify it meets published specs.
  • Cleaning: Units go through a mineral bath, with ultrasonic cleaning used for delicate internals.
  • Teardown: Every valve is disassembled for internal inspection.

Leak and Performance Testing

With thirteen in-house test stands and a Hagenbush proportional valve system, we verify flow curves, hysteresis, frequency response, and more. Performance reports and graphs are available for purchase on request. Our performance testing verifies consistent performance.

Common Applications

Our professional repair services for the MOOG D661-363D are trusted across various sectors including Oil & Gas, Industrial Machinery, and Plastics & Injection Molding. We understand the unique demands of valves in these environments.

Repair, Rebuild and Exchange Options

Beyond standard refurbishment, we offer specialized overhauls for your MOOG D661-363D unit. Our overhaul process includes flow verification and leak testing, using only new replacement components.

Lead Times and Support

As a focused repair facility for MOOG D661-363D services, NC Servo targets quick resolution with typical lead times of 2 to 3 weeks. Benefit from our direct access to our technicians to keep your systems running smoothly.

Data Sheets & Reports

For detailed insights into your MOOG D661-363D, we can provide access to repair records and reports. This transparency offers you compliance assurance and aids in long-term maintenance planning.

Maintenance Tips

  • Keep a spare MOOG D661-363D on hand to minimize downtime during unplanned failures.
  • Replace inline filters according to maintenance schedules to maintain proper flow rates.
  • Schedule preventive maintenance intervals based on duty cycle, not just calendar time.

Let Us Repair Your MOOG D661-363D

Request pricing, availability, and turnaround for your MOOG D661-363D. NC Servo provides hands-on repair with a 1-year warranty. Contact us to request your repair.

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NC Servo is an independent third-party repair facility. We are not affiliated with, endorsed by, sponsored by, or authorized by MOOG or any original equipment manufacturer (OEM), nor do we claim to be a MOOG service center. All brand names, trademarks, model numbers, and part numbers referenced on this page are the property of their respective owners and are used solely for identification and compatibility purposes.