I thought you might be interested to see a counterfeit filter or at least to learn that they indeed exist. This filter was purchased online in the Ukraine as a genuine Renault filter. I know very well what a Renault filter looks like so I decided to cut the suspect open. I always check the ADBV by blowing the air in the centre tapped hole. The ADBV did not work to say the least.
Here are some pictured. Some of the pictures were taken earlier with a better camera.
Whoever produced this filter didn't know French well.
The ADBV is not spring loaded. No wonder it leaked.
Relief valve spring is very weak. Calculated opening pressure is 0.4 bar.
Very thin media was not glued properly. There are areas with no glue whatsoever.
At last, here is a real one with a spring loaded ADBV and a special media shape.
Here are some pictured. Some of the pictures were taken earlier with a better camera.
Whoever produced this filter didn't know French well.
The ADBV is not spring loaded. No wonder it leaked.
Relief valve spring is very weak. Calculated opening pressure is 0.4 bar.
Very thin media was not glued properly. There are areas with no glue whatsoever.
At last, here is a real one with a spring loaded ADBV and a special media shape.