Startseite ASF-Leckanzeiger Gardner Denver Thomas GmbH

Deutsch/German Polska/Polish
Leak Detection Systems Overview
Operating Principles of Leak Detection Systems
Container Design
Liquid / Gas Medium

   General Design Permit (DIBT) No. Z-65.22-217
   EC-Type Examination Certificate PTB 99 ATEX 2037 X

Print Version

  • The partially explosion protected leak detector can be used on double-walled tanks according to DIN EN 12285-1 (DIN 6608 Part 2), DIN EN 12285-2 (DIN 6616 Form A), DIN 6618 part 2/4, DIN 6619, Part 2, DIN 6623 part 2 and DIN 6624 part 2 as well as on flat bottom tanks to DIN 4119.
  • For connection to double-walled plant or site-made containers, trays or sumps with a general building inspection approval or a laboratory certificate.
  • The leak detector can also be used to monitor single-walled tanks with a leak protection lining, if this is approved for the values noted below.
  • DIN 6608 Part 2 containers that were previously monitored by liquid leakage can be monitored with this vacuum leak detector after extracting a specified volume of leakage fluid.
  • To monitor double-walled pipes with a maximum operating pressure of 6 bar.
  • For monitoring of water-polluting liquids and flammable liquids with a flash point < 55°C, the explosion group IIA (IIB as an option) and the temperature class T4 are assigned.
  • The storage medium may only have the density allowed for the container type.

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

  • Partially explosion protected leak detector on the vacuum principle, with integrated vacuum pump, consisting of:
  • Instrument panel (AK) to be installed in Ex zone 1 or 2.
  • Switch box (SK) or multiple switch box (M-SK). The switch box must be mounted outside the hazardous zone.
  • With built-in potential-free relay.

Operating vacuum:
in the interstitial space
max. -450 mbar +/- 15 mbar

Switching values: relative pressure 
Alarm ON PAE = -325 mbar +0/-30 mbar
Pump OFF PPA = -450 mbar +/-15 mbar

For further data please see the data sheet of the V80 Ex H leak detector.

Operating Conditions
  • Compliance with the relevant explosion protection guidelines for liquids with flash point < 55°C
  • The control unit must be mounted outside the hazardous area (ex-zone)!

  • Mounting Kits (MBS) for connection to tanks and/or pipelines.
  • For the extended field of application, these leak detectors are built alternatively in stainless steel.
  • The instrument panel can be supplied with an explosion proof heater.
  • The instrument panel can be completely assembled and delivered in protective casing (e.g. for use on flat-bottom tanks).
  • Special system design possible: for example, several AK's together with the controller M-SK 2/5.

Mounting Examples

Please click on the picture for a larger view!

Picture a Picture b
Picture c Picture d
Product Images

Leak Detector Type V80 Ex H - Vacuum Principle

Leak Detector Type V80 Ex H - Vacuum Principle

Installation and Operation Manual V80ExHInstallation and Operation Manual V80ExH
Data Sheet V33Data Sheet V80 Ex H
General Design Permit (DIBT) V80Ex Variante HGeneral Design Permit (DIBT) V80Ex Variante H
EC-Type Examination Certificate V80Ex Variante HEC-Type Examination Certificate V80Ex Variante H
V80 Version H AccessoriesV80 Variante H Accessories & Assembly Kits


Print Version

Copyright 2008-2015 © Gardner Denver Thomas.
Terms of Use/Privacy Policy | Imprint | General Terms and Conditions