Valve Overview

NC Servo Technology provides repair and reconditioning for the BOSCH 0811-404-803. With in-house tooling and stocked parts, we keep turnaround times short.

Independent Repair Facility

NC Servo Technology specializes in both valves and electronic controls, which lets us operate without the delays of OEM service centers.

Frequently Asked Questions

If the main housing or board is intact, repair is usually the better option. We can restore most units to working condition with tested parts.

Send the unit in whatever condition it’s in. We clean everything during teardown before inspection begins.

It depends on the unit and scope of work. We provide an estimated timeline after initial evaluation.

Yes, a 12-month warranty on parts and labor is standard on all repairs. Details are provided with your service report.

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

Rebuild Steps

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

  • Cleaning: Units go through a mineral bath, with ultrasonic cleaning used for delicate internals.
  • Final Performance Verification: After reassembly, each valve is bench-tested against published performance specifications.
  • Teardown: Every valve is disassembled for internal inspection.
  • Seal and Gasket Replacement: Worn seals and gaskets are replaced with new components during every rebuild.

Leak and Performance Testing

With over a dozen dedicated flow test stands and a Hagenbush proportional valve system, we verify flow curves, hysteresis, frequency response, and more. Performance reports and graphs are available for purchase on request. Our performance testing verifies spec-level operation.

Turnaround and Shipping

As a specialist for BOSCH 0811-404-803 services, NC Servo Technology targets quick resolution with typical lead times of 1 to 2 weeks. Benefit from our responsive technical support to keep your systems running smoothly.

Stock Availability

With over 17,000 valves in stock, we can often provide faster turnaround by sourcing parts in-house rather than waiting on OEM lead times.

Maintenance Tips

  • Use only manufacturer-recommended hydraulic fluids to protect internal valve surfaces.
  • Store spare BOSCH 0811-404-803 valves in a clean, dry environment to prevent corrosion and contamination.
  • Check valve alignment carefully to prevent undue stress on internal components.

Start Your BOSCH 0811-404-803 Reconditioning Process

Request pricing, availability, and turnaround for your BOSCH 0811-404-803. NC Servo Technology provides hands-on repair with a 1-year warranty. Contact us to set up your repair.

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