Expert Moog Servo Valve Repair for All Series

Moog Servo Valve Repair — Independent Service for All Series

Moog Servo Valve Repair — Independent Service for All Series

Our Moog servo valve repair service provides independent, precision repair for a wide range of Moog valves, including D633, D634, Series 30, and other industrial servo and proportional valves. We specialize in Moog proportional valve rebuilds and comprehensive servo valve testing, ensuring reliable operation across industrial machinery, test rigs, and OEM equipment.

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Why Choose Independent Moog Valve Repair?

Independent repair offers significant advantages over OEM services:


  • Faster turnaround times with reduced downtime
  • Lower costs compared to new OEM units or factory repairs
  • Specialization in Moog’s most common service families, including D633, D634, and Series 30


Disclaimer: This is an independent third-party facility. We are not affiliated with, authorized by, or endorsed by Moog Inc. All brand names and part numbers are used for identification purposes only.

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Moog Series We Service

We repair a wide range of Moog valves, including:


  • D633 / D634 – direct drive servo valves with analog interface and permanent magnet linear motors; commonly used on concrete pumps, presses, and industrial machinery
  • Series 30 – classic two-stage electrohydraulic servo valves for industrial flow control
  • Series 60 / 61 / 62 / 63 – industrial servo valves for manufacturing and automation applications
  • Series 72 / 760 / 728 – high-performance two-stage valves for flight simulators, motion platforms, and precision machinery



Our service coverage extends to all variants that fall within these families, ensuring precise repair and calibration.

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Turnaround Options

We offer flexible service options to meet urgent operational needs:


  • Standard turnaround – cost-effective, reliable service
  • Rush (24-hour) – expedited service (+$250) for critical applications
  • 72-hour priority – fast-track option (+$150)
  • Core/exchange units – available to minimize equipment downtime
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Our process ensures your Moog servo valves are restored efficiently without compromising quality.

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Request a Repair Quote

Ready to restore your Danfoss KVEBB to peak performance? Contact us today to request a quote for repair. Our team provides fast, reliable service and nationwide shipping to keep your operations running smoothly.

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Frequently Asked Questions

Have any questions about our services? Feel free to reach out to us.

  • WHY CHOOSE MCGOWAN?

    McGowan Controls Co. is renowned for its exceptional valve service, which sets us apart in the industry. Our expertise in valve service allows us to provide high-quality repairs, maintenance, and remanufacturing solutions tailored to your needs. With a strong commitment to integrity and precision, our highly trained specialists ensure every valve service meets or exceeds manufacturer standards. We offer free tear-down evaluation quotes, a one-year in-operation warranty on rebuilt servo valves, and a 24-hour emergency valve service turnaround.


    Our facility thoroughly inspects and cleans every unit received, delivering top-tier results in valve service every time. Since 1989, our reputation has been built on honesty and outstanding results. Discover why so many trust us for valve service and get in touch today for a quote or to schedule your next valve service.

  • What does Servo valve service include?

    Industrial valve service typically involves a full disassembly, professional cleaning, detailed inspection, and repair or replacement of parts, followed by reassembly using top-quality components. Our team also tests every valve to make sure it meets or exceeds the original manufacturer’s specifications. We work with a wide range of valve types and brands, ensuring your equipment stays reliable and efficient. Contact us today for expert industrial valve service that keeps your operation running smoothly.

  • Do you offer emergency valve repair services?

    Yes, we provide 24-hour emergency valve repair services for urgent situations. Our fast response and experienced technicians work quickly to minimize downtime and get your machinery back in action. Don’t wait if you have an emergency call us now for immediate help.

  • Which valve brands do you service and repair?

    We service and repair a wide range of valve brands, including Sauer-Danfoss, ABEX, Bosch, Cincinnati, Eaton, Honeywell, Moog, Parker, Rexroth, Vickers, and more. Our expertise spans both mobile and industrial applications. If your valve brand isn’t listed, just get in touch, and we’ll let you know how we can assist with your specific equipment.