Hydrogen Tank Middle Plug

  • H2 Thermal activated Pressure Relief Device (TPRD) to protect hydrogen fuel systems
  • VTI hydrogen tank Middle Plug is ECE R134 / EU535 approved
  • Relief temperature: 110 °C (+ / - 10°C)
  • Working pressure: 700 bar
  • Working temperature: between -40 °C to +85 °C (tested to -50 °C)

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Hydrogen Tank Middle Plug 

What is the purpose of our Middle Plug?

  • VTI’s UN ECE R134 approved  Middle Plug is a safety device for hydrogen cylinder systems and prevents explosions of hydrogen filled cylinders in case of vehicle fires.

How does it work?

  • When the temperature at the Thermal activated Pressure Relief Device (TPRD) reaches minimum 110°C (+ / - 10°C), the glass bulb triggers inside the Middle Plug and burst.
  • The TPRD then opens and reliefs the hydrogen in a controlled manner through a vent line.

Our mission with the Middle Plug?

  • Manufacturing a best-in-class quality safety device for H2 applications with the aim of increasing the safety of hydrogen systems on the market!

Key Features

  • One design for all working pressures up to 700 bar
  • 360° rotatable and removeable vent line connection port for fast and flexible installation
  • Visible glass bulb for faster heat detection and quality control
  • Easy and T-less connections to other Middle Plug TPRDs

Applications

  • Automotive industry
  • Cylinder systems for trucks / busses
  • Hydrogen transport / storage systems
  • Hydrogen filling stations

Contact us

  • Interested? Please contact VTI by filling in the contact vendor form.

 

VTI Ventil Technik GmbH

VTI is a global high-pressure valve technology company based in Iserlohn Germany. We develop and produce high-pressure valves and regulators to control various gases to ultimately protect and save lives. VTI has been active in the CNG market for more than 20 years with TPRD & valve technology and will complete its product portfolio in the H2 safety device area.

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