About This Unit

Whether the issue is age, wear, or contamination, the MOOG 631-294C can often be restored. NC Servo Technology applies the same structured approach to every rebuild.

Teardown and Rebuild Steps

We specialize in the overhaul of your MOOG 631-294C, including the replacement of all necessary gaskets and worn components.

Frequently Asked Questions

Rush and priority service options exist. Availability depends on current workload, so contact us early.

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

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

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

Yes. Our technicians can often identify units based on photos, dimensions, or manufacturer markings. Send a photo before shipping to speed up intake.

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 631-294C

How We Rebuild This Valve

Each valve goes through teardown to expose wear and buildup. After mineral bath cleaning, we replace damaged parts and reassemble the unit to spec.

  • Complete Disassembly: The unit is disassembled and all parts are laid out for individual inspection.
  • Cleaning: Units go through a mineral bath, with ultrasonic cleaning used for delicate internals.
  • 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.

Hydraulic Testing Process

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 pre-shipment testing verifies consistent performance.

Where the MOOG 631-294C Is Used

Our expert repair services for the MOOG 631-294C are trusted across various sectors including Plastics & Injection Molding, Manufacturing, and Automotive. We understand the unique demands of valves in these environments.

Turnaround and Shipping

As a dedicated source for MOOG 631-294C services, NC Servo Technology targets quick resolution with typical lead times of 1 to 3 weeks. Benefit from our responsive technical support to keep your systems running smoothly.

Stock Availability

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

  • Use only manufacturer-recommended hydraulic fluids to protect internal valve surfaces.
  • Perform fluid analysis to detect contamination early and prevent system damage.
  • Store spare MOOG 631-294C valves in a clean, dry environment to prevent corrosion and contamination.

Start Your MOOG 631-294C Reconditioning Process

Request pricing, availability, and turnaround for your MOOG 631-294C. NC Servo Technology provides hands-on repair with a 1-year warranty. Contact us to request 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.