The Diesel adaptor set flow-0278 belongs as accessories to the heat exchanger units
It is used, when the fuel pump of the fuel system is located directly at the engine. This fuel system sucks the fuel from the tank to the engine. A pressure regulator directly at the engine directs the excess fuel back to the tank. This type of fuel system set up is common for Diesel engines.
The original fuel circuit directs the excess fuel from the engine back to the tank. The sensor will measure a far to high fuel consumption, as it is placed in the feed line. The flowtronic measuring system requires to stop the return fuel flow from the engine to the tank. The heat exchanger unit directs the return fuel from the engine directly back into the feed flow to the engine.
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