CE Declaration of Conformity



ATEX classification:    Ex-Symbol_30   II  2G  c  T6

Operating conditions:
The Pneumatic Turbine Vibrators of the series VT are operative means of category 2 and allow to be employed in accordance to EN 1127-1, Annex B in Zone 1 and Zone 2 as well as with the gas groups II, which are endangered to cause explosions in the areas of the temperature classes T1 to T5.

The admissible ambient temperature in Ex zones (explosive zones) is from 0°C to +40°C.
Admissible operative media:  clean and oil-free compressed air or nitrogen up to a maximum of 6 bar and a maximum of 40°C.

Potential equalisation:
Make sure on mounting that the vibrator housing is electrically connected to the system of potential equalisation of the installation!

The above-mentioned operating conditions must be strictly observed. In the case the vibrator is employed in a way that its function may be of importance in view to technical safety, the function must be strictly monitored.


With this, we declare in the scope of our own responsibility that the devices indicated in the
following text are in full conformity with the regulations in the sense of Guideline 94/9/EG (ATEX).

Pneumatic Turbine Vibrators of the series VT
With the type denominations: VT 7 ; VT 9 ; VT 13 ; VT 16 ; VT 17 ; VT 24 ; VT 31

The technical documentation of the risk analysis is deposited at:
SEV Electrosuisse, Luppmenstrasse 1, CH-8320 Fehraltorf; code n° SEV 04 ATEX  0107

This declaration will lose its validity with constructional changes, with deviations from the operating parameters indicated by the Operating Instructions, or with any use of the devices which is not
in accordance with their original intended use.

Webac Vibrator GmbH
Albert-Latz-Str. 3
D-53879 Euskirchen

Herr Siegfried Anczikowski
Sales Management


Check the vibrator an hour after its first operation and one time per month to ensure that all bolts, hose nozzle and silencers are still perfectly fixed.

In the case the vibrator works too slow, take off the silencer. If then the vibrator works normal again, clean or replace the silencer. Proceed in the same way with regard to the air filter.

CAUTION: when operating the vibrator without the silencer, wear an ear protection device.

Potential faults leading to a reduced performance:

  • The capacity of the compressor is too small, i.e. its output of litres/minute is too small    (replace)
  • The cross-section of the compressed air supply hose is too small or the hose is too long   (replace or shorten)
  • The silencer is strongly polluted    (cleanse in paraffin oil or replace)
  • The groove-type ball bearings emit noise or do not run perfectly anymore    (replace)
  • Leaks in the piping    (check the compressed air supply by means of leak indication spray)
  • The air filter is strongly polluted    (cleanse in paraffin oil or replace)
  • Sharp bents and/or squeezing of the compressed air hose   (replace or shorten)

Damaged devices must not be operated. With clearly indicating noises, replace the ball bearings. Check the perfect functioning of the vibrator after 5.000 operating hours at the latest. After 8.000 operating hours, replace the bearings and any worn wear parts.

With repairs, only original spare parts of the manufacturer must be used! All parts allow to be recycled. Store the Operating Instructions for any later employment.