MOOG D
D631-335
Don’t let a faulty Moog D631-335 valve slow you down. Our technicians specialize in diagnosing and repairing these critical components, restoring them to peak performance.
Valve Overview
Whether the issue is age, wear, or contamination, the Moog D631-335 can often be fully restored. NC Servo Technology applies the same structured approach to every rebuild.
Frequently Asked Questions
If a unit is beyond repair, we'll provide a return or replacement recommendation.
Yes. We perform diagnostic testing and provide an assessment before moving forward.
Yes, we offer rush service for critical repairs. Just let us know your deadline when submitting your request.
Yes, absolutely. Our technicians can often identify units based on photos, dimensions, or manufacturer markings. You can upload a photo before shipping to speed up the process.
Many units can be restored to full function with quality parts and testing. If the main housing or board is intact, it is usually worth it.
Restoration Workflow
We rebuild every valve from the inside out, starting with detailed cleaning and inspection, followed by new parts installation, careful reassembly, and rigorous bench testing.
- Thorough Decontamination: Every component is put through a deep cleaning process to remove grime and buildup.
- Final Performance Verification: After reassembly, each valve undergoes bench-testing to ensure it meets or exceeds OEM performance specifications.
- Rigorous Testing: The reassembled unit undergoes rigorous leak and pressure testing to verify it performs to specification.
- Meticulous Cleaning: All parts undergo an ultrasonic cleaning process to remove contaminants before inspection.
Fast Turnaround & Dedicated Support
As a top specialist for Moog D631-335 services, NC Servo Technology ensures quick resolution with typical lead times of 2 to 3 weeks. Benefit from our expert assistance to keep your systems running smoothly.
Maintenance Tips
- Replace inline filters per maintenance schedules.
- Conduct thorough visual inspections for wear or leaks during routine maintenance.
- Check valve alignment to prevent undue stress.
Request Quote
Contact our sales team for pricing and availability information on this industrial component.
Our Approach to Repair
Our comprehensive repair process for the Moog D631-335 begins with a full teardown and ultrasonic cleaning to assess all components.
The NC Servo Tech Advantage
NC Servo Technology operates independently, so we're not tied to manufacturer delays or restrictions. That means more flexibility when your system is down.
30+ years of expertise in Moog D631-335 Valve Repair
Testing & Diagnostics
NC Servo Technology operates over a dozen dedicated flow test stands, including specialized setups specifically designed for proportional and servo valves. Every valve goes through comprehensive performance and leak testing using industry-standard fluids including MIL-5606 and Skydrol. Our functional testing ensures ensured functionality.
Ready When You Are
With an extensive stock of 17,000+ valves, we are often able to provide immediate solutions, minimizing your downtime.
Schedule Your Moog D631-335 Service Today
Trust NC Servo Technology for exceptional service. Contact us today to schedule your repair and get your unit repaired.