How We Repair Your Unit

Our repair process for the MOOG D634-344 begins with teardown and mineral bath cleaning to assess all components.

About This Unit

At NC Servo, our shop is equipped to service the MOOG D634-344. We use a consistent process to restore each unit to working condition.

Frequently Asked Questions

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

If a unit is beyond repair, we explain why and can discuss replacement or exchange options.

Yes. We diagnose first, then provide a repair recommendation with our findings. No work begins without your approval.

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

Warranty coverage of our standard 1-year parts and labor warranty is included with every repair we complete.

About Our Shop

As a specialized repair facility, we have dedicated test equipment that general-purpose shops don’t. That means your MOOG D634-344 gets serviced by people who work on these units regularly.

In-house parts inventory eliminates OEM lead time delays for MOOG D634-344

How We Rebuild This Valve

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

  • Leak and Pressure Testing: The reassembled unit is leak-tested and pressure-tested to verify it meets published specs.
  • In-House Parts Sourcing: Many repairs use components sourced from our inventory of 17,000+ units.
  • Cleaning: Units go through a mineral bath, with ultrasonic cleaning used for delicate internals.
  • Final Performance Verification: After reassembly, each valve undergoes bench-testing against published performance specs.

Diagnostic Testing

Each MOOG D634-344 is tested on a dedicated flow bench before it ships. We check pressure, flow, leakage, and response characteristics against published specifications. Our performance testing verifies consistent performance.

Industries We Serve

Our trusted repair services for the MOOG D634-344 are trusted across various sectors including Plastics & Injection Molding, Oil & Gas, and Steel & Metals. We understand the unique demands of valves in these environments.

Additional MOOG D634-344 Services

Beyond standard sales, we offer specialized reconditioning for your MOOG D634-344 unit. Our teardown process includes reassembly to spec and bench testing, using only replacement replacement components.

Turnaround and Shipping

As a focused repair facility for MOOG D634-344 services, NC Servo targets quick resolution with typical lead times of 1 to 2 weeks. Benefit from our dedicated support team to keep your systems running smoothly.

Technical Information

For documented insights into your MOOG D634-344, we can provide access to reports and service logs. This transparency offers you compliance assurance and aids in long-term maintenance planning.

Maintenance Tips

  • Conduct thorough visual inspections for wear or leaks during routine maintenance.
  • Perform fluid analysis to detect contamination early and prevent system damage.
  • Monitor operating temperatures to identify potential issues before failure occurs.

Get a Free Evaluation for Your MOOG D634-344

Request pricing, availability, and turnaround for your MOOG D634-344. NC Servo provides independent repair with a 1-year warranty. Contact us to schedule your repair.

Request a Quote View All MOOG Products Shop MOOG Inventory

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.