Repair Procedure

Each MOOG 631-346C undergoes reconditioning — disassembly, parts replacement, reassembly, and bench testing before shipment.

Why Repair With NC Servo

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

One-year warranty on all MOOG 631-346C valve repairs

Frequently Asked Questions

Yes. Our repairs include our standard 1-year parts and labor warranty covering parts and labor.

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

We give you a straight assessment after inspection. If repair doesn’t make sense, we’ll let you know and discuss alternatives.

Yes. Our technicians can often identify units based on photos, dimensions, or manufacturer markings. Send a photo before shipping to speed up intake.

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

Repair Process

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 is bench-tested against published performance specifications.
  • In-House Parts Sourcing: Many repairs use components sourced from our inventory of 17,000+ units.
  • Leak and Pressure Testing: The reassembled unit is leak-tested and pressure-tested to verify it meets published specs.
  • Complete Disassembly: The unit is disassembled and all parts are laid out for individual inspection.

Leak and Performance Testing

Each MOOG 631-346C is tested on a dedicated flow bench before it ships. We check pressure, flow, leakage, and response characteristics against published specifications. Our operational testing verifies consistent performance.

Industries We Serve

Our expert repair services for the MOOG 631-346C are trusted across various sectors including Automotive, Manufacturing, and Defense. We understand the unique demands of valves in these environments.

MOOG 631-346C Specifications

Every MOOG 631-346C we service is tested under typical applications. Our diagnostics verify performance against published specifications. Technical diagrams and Cycle life data are available for purchase upon request.

Maintenance Tips

  • Monitor operating temperatures to identify potential issues before failure occurs.
  • Replace inline filters according to maintenance schedules to maintain proper flow rates.
  • Keep hydraulic fluid clean and at proper levels for consistent valve operation.

Ready to Restore Your MOOG 631-346C?

Request pricing, availability, and turnaround for your MOOG 631-346C. NC Servo Tech provides independent repair with a 1-year warranty. Contact us to start 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.