Moog 72-103 Servo Valve Direct Replacement by STAR 890-0002 Valve

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In the event that your Moog servo valve is determined to be non-repairable, K+S Services in partnership with Star Hydraulics, ltd., is able to provide a drop in replacement for the Moog 72-103 Servo Valve! K+S Services is the only Authorized Distributor and Service Center in North America and Mexico for Star Hydraulics.

The STAR 890 valve is a 2-stage Servo Valve with rated flows up to 230 l/m.

Moog Servo Valve Repair

Moog Servo Valve Replacement

Features Include:

  • Maximum operating pressure 315 bar
  • ISO 10372-04-04-092 mounting pattern
  • Field replaceable Pilot Filter
  • Internal pilot supply – 4 port
  • Suitable for 3-way or 4-way applications
  • Low hysteresis and zero point drift
  • High spool drive forces
  • Spool in bursting design
  • Dry torque motor with mechanical feedback
  • Long life Sapphire Technology

Benefits Include:

  • Sapphire ball in slot design
  • Safety
  • Quality
  • Custom spool lap and bushing port geometries
  • Special projects
  • Sapphire flow
  • Sealing materials
  • Special connectors

Many of STAR servo valves are manufactured with inlet orifices and feedback wire that include the Sapphire Technology. The benefit to the operator is that the traditional inlet and ball wear erosion problems that have been seen in the past are now just that, a thing of the past. These features enable STAR servo valves to deliver and maintain higher performance for extended periods without failure. This extended operational life results in reduced costs for the end user.

Replacement for Moog Servo Valve

Sapphire Technology

  • Incorporated into STAR designs since 1988
  • Billions of cycles per service life
  • Increased spool life due to spool rotation
  • Ultra low coefficient of friction sapphire to steel
  • Feedback mechanism unhindered by spool rotation
  • Extended warranties available

Alternative Moog Replacements:

  • E030
  • 776, 77-1
  • 77-2,772
  • 77-5, 773
  • E061, 62, 73, 76, 760, 769
  • G761

  • 62
  • 631
  • 72
  • 728
  • D661 / D634


K+S Services is ISO 9001:2015 certified at all locations. Our continued ISO certification ensures that our level of quality is maintained and our efforts for continuous improvement are always expanding.