How We Repair Your Unit

Each MOOG 78-111C undergoes reconditioning — disassembly, parts replacement, reassembly, and bench testing before shipment.

About Our Shop

We’ve built our shop around one thing: industrial repair. With decades of hands-on experience and deep product knowledge, we deliver consistent results.

Specializing in MOOG 78-111C servo valve technology for over five decades

Frequently Asked Questions

Send it in for evaluation. We’ll inspect it and give you a repair-vs-replace recommendation based on the actual condition of the unit.

Yes. Photos of the nameplate and overall unit let us begin identification before it arrives, which speeds up the process.

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

Warranty coverage of a one-year warranty is included with every repair we complete.

Part of our intake includes troubleshooting to determine the failure point. We report findings before proceeding.

How We Rebuild This Valve

We rebuild every valve from the inside out: cleaning, inspection, parts replacement, reassembly, and bench testing.

  • In-House Parts Sourcing: Many repairs use components sourced from our inventory of 17,000+ units.
  • Seal and Gasket Replacement: Worn seals and gaskets are replaced with new components during every rebuild.
  • Cleaning: Units go through a mineral bath, with ultrasonic cleaning used for delicate internals.
  • Teardown: Every valve is disassembled for internal inspection.

Testing and Bench Verification

Each MOOG 78-111C is tested on a dedicated flow bench before it ships. We check pressure, flow, leakage, and response characteristics against published specifications. Our functional testing verifies consistent performance.

Additional MOOG 78-111C Services

Beyond standard maintenance, we offer specialized repairs for your MOOG 78-111C unit. Our disassembly process includes leak testing and bench testing, using only replacement replacement components.

In-House Inventory for MOOG 78-111C

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

  • Conduct thorough visual inspections for wear or leaks during routine maintenance.
  • Keep a spare MOOG 78-111C on hand to minimize downtime during unplanned failures.
  • Document all maintenance activities to track performance trends over time.

Let Us Repair Your MOOG 78-111C

Request pricing, availability, and turnaround for your MOOG 78-111C. NC Servo Technology provides independent repair with a 1-year warranty. Contact us to request your repair.

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NC Servo Technology 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.