Rotary union with 2 independent directions

HD series is designed for the passage of hydraulic oil and air and is mainly mounted on coil machines. A special version facilitates the water flow.

It’s a universal product that guarantees its application whenever a rotary union necessarily requires 2 directions; fluid flows are separated by high quality ball bearing.

The rotary unions are composed as follows:

  • Rotor in nitrited steel, nitrited with anticorrosive treatment
  • Aluminum housing
  • Ball bearings
  • Seal in PFTE filled with graphite

HD series is also available with threaded connection or in the flanged version. Thread of different standards can be made upon request (NPT, metric, ecc…)


  • 100% made in Italy, entirely manufactured in our plant
  • Standard versions always on stock!
  • Customizable on request

Swipe left and right for the internal and external view of the rotary union


HD Series – Data sheet

Download our catalogue for technical specifications

HD Series – Rotary union with 2 independent directions