Key Details

The DANFOSS 155G4152 is one of many models we routinely service. Our process includes disassembly, cleaning, and reassembly using reliable components.

Independent Repair Facility

NC Servo operates independently, so we’re not tied to manufacturer delays or restrictions. That means more flexibility when your system is down.

Specializing in DANFOSS 155G4152 servo valve technology for over five decades

Frequently Asked Questions

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

Even if the tag is worn off, we can often match the unit based on shape, size, and internal configuration.

All repairs come with a one-year warranty. Contact us for specifics on your unit.

Send it in for evaluation. We’ll inspect it and give you a repair-vs-replace recommendation based on the actual condition of the unit.

Yes. Photos of the nameplate and overall unit let us begin identification before it arrives, which speeds up the process.

How We Rebuild This Valve

The repair process for the DANFOSS 155G4152 includes disassembly, diagnostic review, and replacement of failed seals, spools, or other elements. Final assembly includes leak and function testing.

  • Complete Disassembly: The unit is disassembled and all parts are laid out for individual inspection.
  • 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.
  • Final Performance Verification: After reassembly, each valve undergoes bench-testing against published performance specs.

Leak and Performance Testing

NC Servo operates thirteen in-house test stands, including setups for proportional and servo valves. Every valve goes through performance and leak testing using industry-standard fluids including MIL-5606 and Skydrol. Our pre-shipment testing verifies consistent performance.

Maintenance Tips

  • Replace inline filters according to maintenance schedules to maintain proper flow rates.
  • Document all maintenance activities to track performance trends over time.
  • Store spare DANFOSS 155G4152 valves in a clean, dry environment to prevent corrosion and contamination.

Request a Quote for Your DANFOSS 155G4152 Maintenance

Request pricing, availability, and turnaround for your DANFOSS 155G4152. NC Servo provides hands-on repair with a 1-year warranty. Contact us to set up your repair.

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NC Servo is an independent third-party repair facility. We are not affiliated with, endorsed by, sponsored by, or authorized by DANFOSS or any original equipment manufacturer (OEM), nor do we claim to be a DANFOSS 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.