The PILOTJET is an industrial servo valve for converting electric signals (-200 to +200 mA DC) Please confirm with client. Into hydraulic signals, which is used mainly for EPC® in steel plants. The PILOTJET uses a highly reliable jet pipe system that has been extensively used, to ensure high operability and easy maintenance.


  • A dry detecting unit, that is not affected by magnetic dust in oil, reduces periodic maintenance.
  • A jet pipe system with extensive experience of use provides hydraulic control.
  • A servo mechanism for handing low to high flowrates is available in combination with a variety of gain boosters.
  • A wide range of gain boosters is available with hydraulic pressures of 0.8 to 14 MPa.
  • A simple structure allows for disassembly, reassembly, and adjustment in your plant.
  • Easy operation and maintenance


Single PILOTJET Controller

Input signal: +200 – 0 – -200mA DC (zero balance)
Resistance of moving coil: About 20Ω
Supply oil pressure: 1.2MPa
Jet pipe capacity*: About 3.5ℓ/min (at 1.2MPa)
Hysteresis error: Less than 2%
Fluctuation of neutral point: Less than 2%

Manifold Controller

Model of manifold controller M4SJ240 M5SJ240 M6SJ240
Gain booster BO9M BO9HM BO10M
Maximum hydraulic pressure MPa 5 14 10
Mass kg About 23 About 28 About 48
Hydraulic pressure of jet pipe MPa 1.2
Permissible back pressure of return oil MPa 0.1

Contact Us

Please use this form to submit your inquiries, feedback and/or requests to NIRECO.

Tokyo +81-42-660-7353
Osaka +81-6-6190-5552