Fuel Filtration Overview
Filter Media Filtration media represents the foundation of any filter design. Mastering the science of media creation is a key focus at Donaldson. The media representations below highlight some of the more commonly used media types in this evolving industry. Today’s engines are built with more stringent specifications and finer tolerances. Fuel systems, pumps and injectors require cleaner fuel to achieve better combustion and lower emissions. That’s why the latest advances in filter media can make the difference between engine power and engine problems.
PRIMARY FILTRATION
Synteq™ Synthetic Media Donaldson’s Synteq fuel filter water separator media uses both cellulose and a melt-blown synthetic layer to achieve the highest levels of fuel filtration performance. This double-layered media increases particulate holding capacity and is a high performance water separator. It has the ability for high efficiency emulsified water separation and can be used in both suction and pressure sides of fuel systems. The polyester layer improves water separation and dirt holding capacity performance. This media is ideal for critical applications or extended service intervals. Cellulose Media This fuel filter water separator media is a treated cellulose base material. Treating a cellulose media with a silicone based treatment allows for effective water separation. Typically, this media is used on the suction side of the fuel system to remove harmful water and coarse particulate contaminant. Water coalesces on the media and drains to the bottom of the can or water collection bowl. Particulate is then trapped and held in media.
SEM 100x
SEM 600x
SEM 100x
SEM 600x
Why remove water in fuel? Water, both coarse and emulsified, must be removed from the fuel to maximize fuel system performance and service life. Water in fuel can prematurely wear and oxidize the components within the fuel injectors, leading to:
• Rusting and corrosion of components • Governor/metering component failure • Sticky metering components (both pump and nozzle) • Injection component wear and seizure • Reduced lubrication
12 • Engine Liquid Filtration
shop.donaldson.com
Powered by FlippingBook