Home Valve Repair Star Servo Valves
The Only Authorized Star Hydraulics Service Center in North America

Star Servo Valves

K+S Services, through our partnership with Star Hydraulics, offers a convenient upgrade program for our industrial clients. If your servo valve is deemed non-repairable, K+S Services can find an economical, high-quality, drop-in replacement for most servo valves used in the market today.

Star Hydraulic servo valves are used extensively in critical applications, including industrial automation, power generation, closed-loop motion systems, and material testing. With over 40 years of experience servicing servo valves from most major manufacturers, we have total confidence in the performance of Star’s product line.

Designed for Extended Service Life

Sapphire Technology

Star Hydraulic servo valves are engineered with proprietary Sapphire Technology that eliminate the traditional inlet and ball wear/erosion problems seen in older servo valve designs. Additionally, each OEM-equivalent replacement includes hand-matched spool-and-bushing pairs for extended service life.

  • Flame-Proof
  • Custom Spool Laps
  • Special Connectors Available
  • Extended Warranties Available
  • Classic, Div. & Zone Coverage
  • Double & Triple Coil Redundancy
The Only Authorized Star Hydraulics Service Center in North America

OEM-Equivalent Replacements

K+S Services can find equivalent Star replacements for nearly every major servo valve brand, including Moog, Atchley, Vickers, Ultra, Abex, and Pegasus. Some of the most notable models we can upgrade include Moog E0 Series, Ultra 4600 Series, Herion HDSV Series, and other obsolete valves.

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ISO Certified Quality
It All Starts With a Free Evaluation

Our Upgrade Process

K+S Services has over 40 years of experience reconditioning servo valves. We maintain data transparency and ensure quality by integrating an ISO 9001:2015-compliant system into our process, and we have dedicated test stands designed around specific manufacturers and product lines. In some scenarios, our factory-certified technicians may determine that your valve is non-repairable. This assessment can result from a variety of issues, ranging from heat-damaged magnets to significant scoring or erosion at the first stage. Regardless of what issues you’re experience, our goal is to find a cost-efficient solution that helps you avoid downtime. When you contact K+S Services, here is what you can expect:

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Step 1

Evaluation:

Our OEM-trained technicians fully disassemble the valve, assessing every component for signs of damage or wear. Damaged components are documented and photographed in our quality management system.

Step 2

Analysis Report:

You’ll receive a no-cost Failure Analysis Report highlighting what our technicians found, our recommended course of action, and a cost and timeline estimate. If our technicians determined your servo valve is non-repairable, our specific upgrade recommendation would be noted in this report.

Step 3

Upgrade:

Once you accept the quote, we’ll contact Star to source your drop-in replacement.

Step 4

Diagnostics:

Before we ship your new Star servo valve to you, we’ll perform thorough dynamic and static load tests to ensure your replacement meets performance requirements.

Step 5

Shipping:

We’ll ship your Star servo valve, along with manufacturer installation and maintenance recommendations.

Star Servo Valves

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Resources

The K+S Resource library is a searchable, comprehensive repository of all documents related to K+S. Whether you are looking for our line cards, or application-specific documentation, you will be able to find it in the Resource library below.

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