Abstract: A fuel/contaminant separator (10) designed to separate water and contaminants out of fuels used for products for combustion. The contaminated fuel (12) enters the fuel/contaminant separator (10) via the inlet pipe (14) located in the upper portion of the fuel/contaminant separator (10). A curved nozzle assembly (16) located at the periphery of the fuel/contaminant separator (10) cause a centrifugal effect to take place making separation similar to that achieved by elaborate mechanical centrifuges. In the collection section (26), minute particles of water and solid contaminants collect at the perforations of the perforated cone filter (28 or 38) where they accumulate and fall to the bottom of the collection section (26). The lighter fuel particles remain in suspension and flow up the center of the fuel/contaminant separator (10) to the outlet pipe (30).