Legacy Servo and Proportional Valves

We understand that staying informed about product lifecycle updates is crucial for your planning and operations. Our End-of-Life Notifications and Legacy product information for our Servo Valves is designed to provide you with easy access to the latest information on product discontinuations, support timelines, and transition resources. 

What you will find here:

  • Comprehensive Notifications: Stay updated with detailed announcements on product end-of-life schedules.
  • Support Timelines: Access clear timelines for when support and services will be phased out.
  • Transition Resources: Find helpful guides and resources to assist you in transitioning to alternative solutions.

Our goal is to ensure you have all the information you need to make informed decisions and maintain seamless operations in your business. Thank you for choosing Moog as your trusted partner in motion control solutions.

For repairs and information of any legacy product, please contact your repair or sales adminstrator, or you can click the link below:

CONTACT OUR EXPERTS >

Legacy Servo and Proportional Valve Details and Resources

Click to toggle open/close each product section.

Searching for a Specific Product/Model?


Press Enter to scroll to each Search Term location. Press Shift-Enter to reverse scroll.

Mechanical Feedback Servo Valves (MFB)

Model Number Description Start of Phase Out End of Sales End of Repair Suggested Replacement Notification Document Product Literature
Jet Pipe Servo Valve Two-stage Electrohydraulic Valve July 1, 2013 December 31, 2013
December 31, 2015 Contact Us Click to Download Manual
760 Series Servo Valves Two-stage Electrohydraulic Valve Not Yet Determined 761 Series Servo Valve - Catalog


760 Manual

760K (I.S.) Manual


760N (E.P.) Manual
62 Series Servo Valves Two-stage Electrohydraulic Valve Not Yet Determined 631 Series Servo Valve - Catalog


Manual

Electronic Feedback Servo and Proportional Valves (EFB)

Model Number Description Start of Phase Out End of Sales End of Repair Suggested Replacement Notification Document Product Literature
D691 Proportional Valve, Size NG10, p/Q-control August 1, 2024 December 31, 2025 December 31, 2028 Contact Us Click to Download Catalog

D651 Proportional Valve, Size NG10, p/Q-control August 1, 2024 December 31, 2025 December 31, 2028 Contact Us Click to Download Datasheet

D656 Proportional Valve, Size NG10, p/Q-control August 1, 2024 December 31, 2025 December 31, 2028 Contact Us Click to Download
Datasheet

D635 Servo Valve, Size NG6, p-control October 1, 2025 December 31, 2027 December 31, 2029 Contact Us Click to Download Datasheet


Operating Instructions