How We Repair Your Unit

Our process involves a teardown of your MOOG G631-3005B, mineral bath and ultrasonic cleaning, and reassembly with quality parts to restore operation.

About Our Shop

NC Servo Tech specializes in both valves and electronic controls, which lets us operate without the delays of OEM service centers.

Frequently Asked Questions

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

In most cases, repair costs less than replacement, especially for legacy or OEM-specific models. We evaluate every unit and let you know what makes sense.

We regularly work on units with missing labels. Send us a few images and any visible part numbers, and we can usually match it.

If a unit is beyond repair, we explain why and can discuss replacement or exchange options.

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

Rebuild Steps

We disassemble every valve, inspect it inside and out, and clean all moving parts. Components that fail inspection are swapped out before the valve is rebuilt and tested.

  • Final Performance Verification: After reassembly, each valve undergoes bench-testing against published performance specs.
  • Cleaning: Units go through a mineral bath, with ultrasonic cleaning used for delicate internals.
  • In-House Parts Sourcing: Many repairs use components sourced from our inventory of 17,000+ units.
  • Complete Disassembly: The unit is disassembled and all parts are laid out for individual inspection.

Hydraulic Testing Process

NC Servo Tech operates our 13-stand test facility, including setups for proportional and servo valves. Every valve goes through performance and leak testing using industry-standard fluids including MIL-5606 and Skydrol. Our performance testing verifies spec-level operation.

Where the MOOG G631-3005B Is Used

Our reliable repair services for the MOOG G631-3005B are trusted across various sectors including Aerospace, Oil & Gas, and Power Generation. We understand the unique demands of valves in these environments.

Repair, Rebuild and Exchange Options

Beyond standard sales, we offer specialized reconditioning for your MOOG G631-3005B unit. Our overhaul process includes bench testing and seal replacement, using only new replacement components.

Lead Times and Support

As a dedicated source for MOOG G631-3005B services, NC Servo Tech 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.

Stock Availability

With over 17,000 valves in stock, we can often provide faster turnaround by sourcing parts in-house rather than waiting on OEM lead times.

Maintenance Tips

  • Schedule preventive maintenance intervals based on duty cycle, not just calendar time.
  • Use only manufacturer-recommended hydraulic fluids to protect internal valve surfaces.
  • Replace inline filters according to maintenance schedules to maintain proper flow rates.

Get a Free Evaluation for Your MOOG G631-3005B

Request pricing, availability, and turnaround for your MOOG G631-3005B. NC Servo Tech provides independent repair with a 1-year warranty. Contact us to schedule your repair.

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NC Servo Tech 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.