Key Details

We handle a wide range of MOOG D633-498A units. Each one receives inspection, internal cleaning, and reconditioning before it ships.

Experience and Warranty

As a specialized repair facility, we have dedicated test equipment that general-purpose shops don’t. That means your MOOG D633-498A gets serviced by people who work on these units regularly.

17,000+ valves in stock including MOOG D633-498A exchange units

Frequently Asked Questions

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

Standard turnaround is 1-3 weeks. Rush options are available for time-sensitive situations.

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.

Photos help us confirm the unit type and speed up intake. You can upload them through our quote request form.

We confirm next steps with you if a unit can’t be rebuilt. No work proceeds without your approval.

Rebuild Steps

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

  • Cleaning: Units go through a mineral bath, with ultrasonic cleaning used for delicate internals.
  • Teardown: Every valve is disassembled for internal inspection.
  • 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.

Leak and Performance Testing

NC Servo Technology operates our 13-stand test facility, including setups for proportional and servo valves. Every valve goes through performance and leak testing using a range of hydraulic fluids like Skydrol and MIL-5606. Our performance testing verifies proper functionality.

Industries We Serve

Our professional repair services for the MOOG D633-498A are trusted across various sectors including Power Generation, Construction, and Paper & Pulp. We understand the unique demands of valves in these environments.

Technical Specifications

Every MOOG D633-498A we service is tested under typical applications. Our diagnostics verify performance against published specifications. Performance data and Cycle life data are available for purchase upon request.

Lead Times and Support

As a focused repair facility for MOOG D633-498A services, NC Servo Technology targets quick resolution with typical lead times of 1 to 2 weeks. Benefit from our responsive technical support to keep your systems running smoothly.

Maintenance Tips

  • Document all maintenance activities to track performance trends over time.
  • Conduct thorough visual inspections for wear or leaks during routine maintenance.
  • Check system pressure regularly to verify it stays within the MOOG D633-498A rated operating range.

Ready to Restore Your MOOG D633-498A?

Request pricing, availability, and turnaround for your MOOG D633-498A. NC Servo Technology provides hands-on 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.