How We Repair Your Unit

We specialize in the overhaul of your MOOG 78-131A, including the replacement of all necessary gaskets and worn components.

About Our Shop

NC Servo Tech operates independently, so we’re not tied to manufacturer delays or restrictions. That means more flexibility when your system is down.

Factory-level test stands dedicated to MOOG 78-131A performance verification

Frequently Asked Questions

Yes, rush service is available for an additional fee. Let us know your deadline when you submit your request.

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

No cleaning required. Our repair process includes disassembly and cleaning of all components.

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

We regularly work on units with missing labels. Send us a few images and any visible part numbers, and we can usually match it.

How We Rebuild This Valve

Our team disassembles each valve to assess internal wear. After ultrasonic cleaning, we install replacements and reassemble and verify operation.

  • In-House Parts Sourcing: Many repairs use components sourced from our inventory of 17,000+ units.
  • Complete Disassembly: The unit is disassembled and all parts are laid out for individual inspection.
  • Final Performance Verification: After reassembly, each valve is bench-tested against published performance specifications.
  • Seal and Gasket Replacement: Worn seals and gaskets are replaced with new components during every rebuild.

Diagnostic Testing

With thirteen in-house 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 functional testing verifies proper functionality.

Where the MOOG 78-131A Is Used

Our professional repair services for the MOOG 78-131A are trusted across various sectors including Steel & Metals, Power Generation, and Manufacturing. We understand the unique demands of valves in these environments.

Technical Specifications

Every MOOG 78-131A we service is tested under real-world conditions. Our diagnostics verify performance against published specifications. Performance data and Specification sheets are available for purchase upon request.

Repair, Rebuild and Exchange Options

Beyond standard refurbishment, we offer specialized repairs for your MOOG 78-131A unit. Our disassembly process includes spool evaluation and reassembly to spec, using only new replacement components.

Turnaround and Shipping

As a dedicated source for MOOG 78-131A services, NC Servo Tech targets quick resolution with typical lead times of 1 to 3 weeks. Benefit from our dedicated support team to keep your systems running smoothly.

In-House Inventory for MOOG 78-131A

With more than 17,000 valve units in inventory, we can often provide faster turnaround by sourcing parts in-house rather than waiting on OEM lead times.

Maintenance Tips

  • Document all maintenance activities to track performance trends over time.
  • Flush the hydraulic system after any major repair to remove debris before reinstalling the MOOG 78-131A.
  • Perform fluid analysis to detect contamination early and prevent system damage.

Get an Expert Repair for Your MOOG 78-131A

Request pricing, availability, and turnaround for your MOOG 78-131A. NC Servo Tech provides experienced repair with a 1-year warranty. Contact us to request 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.