Over 14’000 Soft Engagement Valves VD-3-339-Series Produced and Sold

The gentle conversion of force!VD-3-339-Series the most efficient device protecting your engine and starter.


We are proud to announce that we manufactured and sold in a considerable short time over 14000 soft engagement valves VD-3-339 series.


  • compact
  • robust
  • reliable
  • ease to handle
  • easy to mount
  • easy to adjust
  • cost effective

We thank all our valuable customers for the trust in our company and products.

Description, datasheet and its typical application see here:
Datasheet EN / Datasheet DE
Principle of operation of VD-3-339-Series EN

If you have any questions please do not hesitate and contact us.

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