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VDK – Valve Proving System – Dungs

The VDK 200 A S02 is a valve proving system as per EN 1643 for automatic shut-off valves.



Fields of application Valves according to EN 161 Class A.

The Dungs VDK 200 A S02 may be used with any other valve whose tightness in counter-flow direction excludes by construction a leakage in flow direction.

Suitable for all DUNGS valves according to EN 161 Class A. Suitable for gases of gas families 1, 2, 3 in gaseous state and other neutral, technical fuel gases. Not suitable for biogas, sewage gas or landfill gas.

Dungs VDK Approvals

EU type testing certificate as per:
• EU-Gas Appliances Regulation
• EU-Pressure Equipment Directive

Approvals in other important gasconsuming countries.


Product Details

  • Device operates independent of inlet pressure
  • Test volume ≤ 20 l
  • Setting possible on site
  • The complete test procedure is defined
  • Release time: max. 26 s
  • Tightness or leaks are displayed by an LED
  • Suitable for TRD systems
  • Electrical connection at screw terminals via PG 11 cable entry


Onsite Diagnostics

If you require onsite diagnostics or technical assistance with any of our products please contact us

  • This field is for validation purposes and should be left unchanged.


We recommend Duomo Gas Detection products are serviced at least annually to ensure efficacy and extend sensor life. Our qualified team of engineers are available Nationwide.



  • VDK Datasheet

    548.58 KB | pdf


Support & Service

If you require technical assistance or an annual service on this product please contact us and we will be happy to help. Our qualified team of engineers are available Nationwide.

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