Weld-on tube union DN3 - 700bar

  • Weld-on tube union with weld-on ends for Pressure range 700bar
  • Successfully tested by TÜV SÜD in accordance with EC 79/2009 and EU 406/2010 (report 20454990-1-d)
  • Available for different tube diameters
  • With weld-on end on both sides

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Weld-on tube union DN3 - 700bar

  • DILO's metal to metal sealing principle allows permanent pressure tightness up to 1,000 bar and withstands temperatures from -257 °C up to +650 °C dependent on the material used (at operating temperatures below -197°C, additional tests must be carried out on the raw material in accordance with the specifications of EN 13445 / AD2000 to ensure material integrity and suitability.).
  • Successfully tested by TÜV SÜD in accordance with EC 79/2009 and EU 406/2010 (report 20454990-1-d)

Key features

  • With weld-on end on both sides
  • Available for different tube diameters
  • Available in DIN EN material 1.4404
  • Temperature-resistant from -40 °C up to +85 °C
  • Available for pressures up to 700 bar 
  • Three-part union consisting of weld-on stub, clamping nut and weld-on screw stub 

Technical specifications

  • Nominal pressure (in bar):PN700
  • Nominal width (in mm): DN3
  • Outer diameter: 6mm
  • Wall thickness: 1,5mm
  • Length: 65mm
  • Wrench size: 17, 19
  • Material: 1.4404 (stainless steel)

Contact us

  • Interested? Please contact DILO Hydrogen by filling in the contact supplier form.

 

DILO Hydrogen GmbH

DILO Hydrogen GmbH is a specialized subsidiary of DILO Armaturen und Anlagen GmbH, founded in 2025 with the mission to transfer decades of expertise in the safe, emission-free, and standards-compliant handling of technically demanding gases to the hydrogen economy.

DILO Hydrogen GmbH develops, manufactures, and supplies components and systems for the safe, efficient, and standard-compliant handling of hydrogen. These include, in particular, gas-tight high-pressure pipe fittings, piping systems, H₂ service devices, mobile H₂ filling systems, and an integrated range of products for replacing diesel generators with hydrogen generators in cooperation with technology partners.

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