Differential pressure for aviation fuel filters

Do you know what an aviation fuel filter differential pressure gauge does and what it is for? Do you know why it is so important? Do you know how to check that it is working properly? This animation from the Energy Institute (EI) is intended to help all those involved in aviation fuel handling operations answer these questions and learn when action is necessary during routine fuel transfers.

[ايمنعبدالله-رب]

Thanks a lot
But I have some questions ... is there is a certain flow rate that must exist to make a filter does his job

[JohnLSinn]

I need a video showing how to clean the DP gauge

[makato]

How can you tell if it is the hydrant or the aircraft?

[sergemakongo]

Bonjour je suis un mécanicien avitailleur