Diesel fuel pre-filtering system

A diesel fuel pre-filtering system, comprising:

• a structure housing at least two filtering areas, a fuel inlet area, and a fuel outlet area;
• an inspection window including a water drain;
• a first filtering area structured to define a restriction connecting between the fuel inlet area and a subsequent filtering area;
• and
• a second filtering area structured to define a restriction connecting between a preceding filtering area and the fuel outlet area;
• wherein the structure and the inspection window are composed of a thermoplastic material distinct from each other and coupled to each other via a weld disposed in a joining area including a burr housing arranged within the structure.

A diesel fuel pre-filtering system, comprising:

• a structure housing a plurality of filtering areas, a fuel inlet area, and a fuel outlet area;
• an inspection window including a water drain;
• a first filtering area of the plurality of filtering areas defining a restriction connecting between the fuel inlet area and a subsequent filtering area of the plurality of filtering areas;
• a second filtering area of the plurality of filtering areas defining a restriction connecting between a preceding filtering area of the plurality of filtering areas and the fuel outlet area;
• and
• a plurality of filtering components including a first filtering component and a second filtering component, the first filtering component fluidically connected to the first filtering area and the second filtering component fluidically connected to the second filtering area;
• wherein the structure and the inspection window are composed of a thermoplastic material distinct from each other and connected to each other via a permanent bond.