Star Hydraulics Servo Technology

British manufacturer of accurate and reliable Electro-Hydraulic Servo Valves

Delta Hydraulics is the Official Distributor for Star Hydraulics Ltd in Ireland. Star Hydraulics design and manufacture high quality Electro-hydraulic Servo Valves and ancillary equipment, which are used in a wide variety of market sectors. The key to the success of the company is many years of Servo Engineering Development, which enables its customers to consistently gain high performance and extended operational life capability from their valves.

Find out more about Star Hydraulics by downloading the following brochures

Products – Benefits and Features

“Sapphire Technology” ball in slot design

  • Incorporated into Star designs since 1988
  • Many millions 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

Sapphire flow

  • Ensuring first stage stability
  • Precisely matched flow properties
  • Long life in extreme environments

Custom spool lap & bushing

  • port geometries
  • Zero overlap
  • Overlap (closed centre)
  • Underlap (open centre)
  • Dual gain
  • Asymmetric gain

Special connectors

  • MIL-C-5015
  • MIL-DTL-38999
  • Conduit style male/female
  • Hermetic


  • Intrinsic safety
  • Class, Div & Zone coverage
  • Mechanical failsafe
  • Double & triple coil redundancy

Sealing materials

  • Nitrile
  • Fluorocarbon (Viton)
  • Ethylene-Propylene
  • Fluorosilicone