About This Unit

The MOOG 728-003E is one of many models we routinely service. Our process includes disassembly, cleaning, and reassembly using reliable components.

Experience and Warranty

Unlike OEM shops, we use our own inventory to handle most rebuilds. That cuts down on lead time and gets your unit back faster.

50+ years of expertise in MOOG 728-003E Valve Repair

Frequently Asked Questions

You’ll hear from us either way. If it’s not repairable, we’ll return the unit and provide our findings.

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

We can often prioritize urgent jobs. Note it on your request form and we’ll let you know what’s possible.

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

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

Rebuild Steps

Once a valve arrives, we tear it down fully, examine key surfaces, and replace worn or damaged parts using components we stock in-house, cutting out OEM lead times.

  • 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.
  • 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 is bench-tested against published performance specifications.

Leak and Performance Testing

Each MOOG 728-003E 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 spec-level operation.

Maintenance Tips

  • Store spare MOOG 728-003E valves in a clean, dry environment to prevent corrosion and contamination.
  • Monitor operating temperatures to identify potential issues before failure occurs.
  • Document all maintenance activities to track performance trends over time.

Ready to Restore Your MOOG 728-003E?

Request pricing, availability, and turnaround for your MOOG 728-003E. NC Servo Technology provides warrantied repair with a 1-year warranty. Contact us to set up 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.