CATALOGUE » Voith Pumps » Motor/pump hybrid system EPAI

Two equals one: the motor/pump hybrid system EPAI:
With the EPAI unit, Voith Turbo has succeeded in integrating the well-established internal gear pumps, type IPM (medium pressure, up to 175 bar) and type IPV (high pressure, up to 330 bar) in an asynchronous electric motor. With that, an electro-hydraulic unit is available, which is very compact in design while also ensuring remarkable low noise emissions.


  • Continuous pressures up to 330 bar (IPV) or 175 bar (IPM)
  • Asynchronous electric motor, 400V/3~
  • Low noise levels, up to 12 dB(A) lower than the conventional motor/pump unit
  • Compact design, up to 50% less space required than conventional solutions
  • Very low flow and pressure pulsation
  • Absence of dynamic sealing elements offers a high degree of protection against leaks
  • Long service life expectancy and less maintenance through use of fewer wear parts
  • Protection class IP 55, higher protection classes on request
  • Designed with single or double pump
  • Pressure relief and direction control valves can be attached (optional)
  • Suitable for variable-speed drives (variable volume flow)


  • Low-noise compact units, mainly in industrial applications
  • Systems with limited space availability (e.g. shipbuilding)