Valve Overview

NC Servo Technology provides repair and reconditioning for the MOOG 631-344C. With in-house tooling and stocked parts, we keep turnaround times short.

Repair Procedure

Our repair process for the MOOG 631-344C begins with teardown and mineral bath and ultrasonic cleaning to assess all components.

Frequently Asked Questions

Most repairs are completed within 1 to 3 weeks, depending on workload and parts availability.

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.

Helpful but not required. If you can photograph the label, connectors, and overall unit, it gives our team a head start.

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

Not required, but removing excess oil or loose debris before packing helps keep things clean in transit.

Independent Repair Facility

We stock common wear parts in-house, so most rebuilds don’t require outside sourcing. Less waiting, faster turnaround.

In-house parts inventory eliminates OEM lead time delays for MOOG 631-344C

Disassembly and Rebuild Procedure

Every MOOG 631-344C gets a controlled teardown on our bench. We document condition, replace what’s needed, and reassemble to proper operating condition.

  • Seal and Gasket Replacement: Worn seals and gaskets are replaced with new components during every rebuild.
  • Leak and Pressure Testing: The reassembled unit is leak-tested and pressure-tested to verify it meets published specs.
  • 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.

Testing and Bench Verification

Each MOOG 631-344C is tested on a dedicated flow bench before it ships. We check pressure, flow, leakage, and response characteristics against published specifications. Our performance testing verifies proper functionality.

Common Applications

Our expert repair services for the MOOG 631-344C are trusted across various sectors including Steel & Metals, Defense, and Aerospace. We understand the unique demands of valves in these environments.

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

  • Check valve alignment carefully to prevent undue stress on internal components.
  • Check system pressure regularly to verify it stays within the MOOG 631-344C rated operating range.
  • Flush the hydraulic system after any major repair to remove debris before reinstalling the MOOG 631-344C.

Get a Free Evaluation for Your MOOG 631-344C

Request pricing, availability, and turnaround for your MOOG 631-344C. NC Servo Technology provides warrantied repair with a 1-year warranty. Contact us to start 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.