MOOG D
D631-404C
Get your Moog D631-404C back in service faster. We specialize in the repair and sale of these essential components, ensuring you get a quality solution without the long wait.
How We Service Your Unit
Our process involves a complete teardown of your Moog D631-404C, precision cleaning, and precise reassembly with high-quality parts to restore original performance.
Frequently Asked Questions
Many units can be restored to full function with quality parts and testing. If the main housing or board is intact, it's usually worth it.
Yes, photos help us confirm the unit type and speed up intake processing. You can upload them through our quote request form.
Yes, our repairs include a comprehensive 12-month warranty on parts and labor.
You can send your unit to us as-is. We will handle all the necessary cleaning and preparation as part of our standard service.
Absolutely. Even if the tag is worn off, we can match the unit based on shape, size, and performance specs.
Testing & Diagnostics
With thirteen state-of-the-art test stands and a Hagenbush proportional valve system, we verify flow curves, hysteresis, frequency response, and more. On request, comprehensive performance reports and graphs are available for purchase. Our functional testing ensures guaranteed reliability.
Our Comprehensive Services
Beyond standard refurbishment, we offer specialized overhauls for your Moog D631-404C unit. Our overhaul process meticulously involves actions such as overhaul and verify, and uses only premium replacement components, ensuring a lasting fix.
Maintenance Tips
- Check valve alignment to prevent undue stress.
- Check valve alignment carefully to prevent undue stress on internal components.
- Replace inline filters according to maintenance schedules to maintain proper flow rates.
Request Quote
Contact our sales team for pricing and availability information on this industrial component.
Trusted By Professionals
As a focused electronic controls company, our technicians work on industrial components like the Moog D631-404C daily, giving us a level of experience you won't find elsewhere.
Specializing in Moog D631-404C servo valve technology for over three decades
How We Rebuild This Valve
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.
- In-House Parts Sourcing: Many repairs use reliable components sourced from our extensive inventory of existing units.
- 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.
- Thorough Decontamination: Every component is put through a deep cleaning process to remove grime and buildup.
Advanced Technical Details
We ensure your Moog D631-404C operates flawlessly under typical applications. Our diagnostics verify performance in typical applications, ensuring long-term reliability. Comprehensive Performance data and Technical diagrams are available for purchase upon request.
Fast Turnaround & Dedicated Support
As a leading source for Moog D631-404C services, NC Servo ensures quick resolution with typical lead times of 1 to 3 weeks. Benefit from our 24/7 technical support to keep your systems running smoothly.
Start Your Moog D631-404C Reconditioning Process
Trust NC Servo for industry-leading service. Contact us today to schedule your repair and get your unit refurbished.