Product Snapshot

Whether the issue is age, wear, or contamination, the Moog J634-307A can often be fully restored to optimal function. NC Servo applies the same structured approach to every rebuild.

Why Work With Us

We’ve got the parts and the experience. We’re built to move fast, restoring most units with stocked components to avoid lengthy delays.

Frequently Asked Questions

Restoration Workflow

The process begins with disassembly and visual evaluation. We then clean, replace worn pieces, and reassemble the valve with care to restore its function.

  • Thorough Decontamination: Every component is put through a deep cleaning process to remove grime and buildup.
  • Final Performance Verification: After reassembly, each valve is bench-tested to ensure it meets or exceeds original performance specifications.
  • Rigorous Testing: The reassembled unit undergoes rigorous leak and pressure testing to verify it performs to specification.
  • In-House Parts Sourcing: Many repairs use reliable components sourced from our extensive inventory of existing units.

How We Test This Valve

With thirteen state-of-the-art test stands and a Hagenbush proportional valve system, we verify flow curves, hysteresis, frequency response, and additional critical parameters. On request, comprehensive performance reports and detailed graphs are available for purchase. Our pre-shipment testing ensures consistent performance.

Key Application Sectors

Our expert repair services for the Moog J634-307A are trusted across various critical sectors, including Marine, Construction, and Power Generation. We understand the unique demands of valves in these environments.

Our Stock Advantage

With over 17,000 valves in stock, we are often able to provide immediate solutions, minimizing your downtime.

Maintenance Tips

  • Conduct thorough visual inspections for wear or leaks during routine maintenance.
  • Perform comprehensive fluid analysis to detect contamination early and prevent system damage.
  • Conduct visual inspections for wear or leaks.

Request a Quote for Your Moog J634-307A Maintenance

Trust NC Servo for industry-leading service. Contact us today to schedule your repair and get your unit reconditioned.