Teardown and Rebuild Steps

Each MOOG XEB159-003-21A undergoes reconditioning — disassembly, parts replacement, reassembly, and bench testing before shipment.

Valve Overview

NC Servo provides repair and reconditioning for the MOOG XEB159-003-21A. With in-house tooling and stocked parts, we keep turnaround times short.

Frequently Asked Questions

Yes. Send us photos of the unit from multiple angles. Our team has serviced thousands of models and can often ID them visually.

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, a one-year warranty is standard on all repairs. Details are provided with your service report.

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

Expedited options are available depending on current scheduling. Contact us to discuss your timeline.

About Our Shop

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

Factory-level test stands dedicated to MOOG XEB159-003-21A performance verification

Disassembly and Rebuild Procedure

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.

  • Complete Disassembly: The unit is disassembled and all parts are laid out for individual inspection.
  • In-House Parts Sourcing: Many repairs use components sourced from our inventory of 17,000+ units.
  • 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.

Leak and Performance Testing

With over a dozen dedicated flow test stands and a Hagenbush proportional valve system, we verify flow curves, hysteresis, frequency response, and more. Performance reports and graphs are available for purchase on request. Our operational testing verifies consistent performance.

Common Applications

Our trusted repair services for the MOOG XEB159-003-21A are trusted across various sectors including Paper & Pulp, Oil & Gas, and Steel & Metals. We understand the unique demands of valves in these environments.

MOOG XEB159-003-21A Specifications

Every MOOG XEB159-003-21A we service is tested under operating environments. Our diagnostics verify performance against published specifications. Cycle life data and Performance data are available for purchase upon request.

Repair, Rebuild and Exchange Options

Beyond standard refurbishment, we offer specialized reconditioning for your MOOG XEB159-003-21A unit. Our teardown process includes bench testing and mineral bath cleaning, using only replacement replacement components.

Documentation on Request

For documented insights into your MOOG XEB159-003-21A, we can provide access to repair records and reports. This transparency offers you peace of mind and aids in long-term maintenance planning.

Maintenance Tips

  • Store spare MOOG XEB159-003-21A valves in a clean, dry environment to prevent corrosion and contamination.
  • Replace inline filters according to maintenance schedules to maintain proper flow rates.
  • Check system pressure regularly to verify it stays within the MOOG XEB159-003-21A rated operating range.

Let Us Repair Your MOOG XEB159-003-21A

Request pricing, availability, and turnaround for your MOOG XEB159-003-21A. NC Servo provides hands-on repair with a 1-year warranty. Contact us to start your repair.

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NC Servo 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.