【Mrefilter】Which of the fine filter or fuel water separator discharges air?

Diesel fine filters and fuel water separators generally discharge air from the fuel water separator:
1. The function of the diesel filter is to filter out harmful impurities and moisture in the fuel system, protect the normal operation of the engine, reduce wear, avoid clogging, and improve the life of the engine;
2. fuel water separator is a device, divided into two types: catering fuel water separator and industrial fuel water separator. Catering fuel water separators are used in the catering industry to treat sewage; because of environmental protection requirements, sewage generated from ship machinery spaces in rivers, lakes, and seas must be treated, and industrial fuel water separators are required;
3. The fuel water separator is a separator that uses the principle of gravity sedimentation to remove impurities and water based on the density difference between water and fuel. There are also separation elements such as diffusion cones and filter screens inside. The fuel water separator also has other functions, such as pre-heating the fuel to prevent waxing, filtering impurities, etc., to separate the fuel from water and to separate the water in the oil, which has a certain effect on improving the engine oil burning. It is a kind of fuel filter, and its main function is to remove the moisture in the diesel, so as to reduce the failure of the fuel injection nozzle and prolong the service life of the engine;
4. Diesel fine filter is a diesel fine filter designed for the current two-stage filter commonly used in diesel engines. It forms a two-stage filter together with the diesel fuel water separator. The fuel water separator is used to filter the water in the diesel, and the diesel fine filter is the fine particles in the diesel.