High Pressure Tube Unions


DILO’s in-house developed sealing principle allows permanent pressure tightness up to 1,000 bar and withstands temperatures from -270 °C up to +500 °C (dependent on the material used). The high pressure tube unions are sealed without any intermediate seal compound. The seal is obtained by direct contact of the tongue and groove sealing surface.


DILO’s range of high pressure tube unions include:

  • Weld-on tube unions
  • Screw in tube unions
  • Throttle free angle-swivel unions
  • Gauge connecting screw in unions
  • Blanking disks
  • Manual blocking valves
  • Superheated steam unions
  • High pressure hoses
  • Special/custom tube unions

With nominal diameters from DN3 to DN50 and pressures range up to 1,000 bar, DILO’s product range meets all requirements. Different materials are available so that high process reliability is always maintained whatever the media.