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Leak Detection Systems Overview
Operating Principles of Leak Detection Systems
Container Design
Liquid / Gas Medium

   General Design Permit (DIBT) No. Z-65.22-2 (Tested by TÜV Nord, Hamburg)
   Article No.: 4121 0040 (Basic Unit)

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  • The leak detector can be used on single-walled tanks with leak protection lining and a suction line to the vessel bottom out.
  • The leak detector can also be used on double-walled tanks with a general building approval (certificate sooner), provided a suction line to the vessel bottom is present. The conditions listed in the technical description have to be followed.
  • For monitoring of water-polluting liquids and flammable liquids with a flash point < 55°C.

The leak detector must be mounted outside the hazardous area (ex-zone)!

  • Leak detector on the vacuum principle, with integrated pump.
  • The vacuum pump evacuates air from the interstitial space and blows it through the exhaust pipe to the exhaust valve of the container.
  • Based on the set switching values a trigger switch mounted on the measuring line controls: Pump ON / OFF, Alarm ON / OFF.

Operating vacuum:
in the interstitial space
max. -80 mbar +/- 5 mbar

Switching values: relative pressure 
Alarm ON PAE = -34 mbar +0/-10 mbar
Pump OFF PPA = -80 mbar +/-5 mbar

For further data please see the Technical Description of the "VAKUMATIK IV F R34" leak detector.

Operating Conditions
  • The media list in the technical description must be observed.
  • The leak protection lining in single-walled tanks must have a general building approval (certificate earlier).

  • Installation of a potential free relay.
  • Installation in protective casing, with external heating and alarm.
  • Mounting Kits (MBS) for the corresponding container ports.

Mounting Examples

Please click on the picture for a larger view!

Mounting Examples

Advantages of the new design of the ASF leak detection systemsAdvantages of the new design of the ASF leak detection systems

Product Images

Leak Detector Type IV F R34 - Vacuum Principle

Leak detector IV F R34
featuring the new improved design

Leak Detector Type IV F (Previous Modell) - Vacuum Principle - Mounted in protective casing
Leak Detector Type IV F (Previous Modell)
Vacuum Principle - Mounted in protective casing

Technical Description IV F R34Technical Description IV F R34
Data Sheet IV FData Sheet IV F R34
General Design Permit (DIBT)General Design Permit (DIBT)
IV F R34 AccessoriesIV F R34 Accessories & Assembly Kits


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