Donaldson P550500 Coalescer

Donaldson P550500 Coalescer 

Donaldson P550500 is a specific cartridge model commonly used in diesel engine fuel filtration systems or specific industrial oil processing equipment as a coalescing/separator cartridge. Its primary function is to coalesce tiny water droplets in fuel into larger drops for effective oil-water separation.

Lefilter Direct Replacement Model: LF-P550500
Our LF-P550500 coalescing cartridge is designed specifically to replace the Donaldson P550500. We not only replicate its physical dimensions but also excel in material science and manufacturing processes to ensure stable performance in harsh fuel environments.

Technical Parameter Details:

• OEM Part Number: Donaldson P550500

• Lefilter Model: LF-P550500

• Function: Fuel Coalescer Cartridge (Oil-Water Separation)

• Filter Media: Utilizes specially formulated hydrophobic glass fiber or synthetic fiber media. This media repels water while allowing oil to pass, forcing tiny water droplets to collect, merge on the media surface, and eventually settle by gravity.

• Separation Efficiency: High, significantly reducing water content in outlet fuel.

• Structural Features:

• Typically includes a center tube to guide filtered fuel.

• Has a sturdy outer support structure to prevent media deformation under high differential pressure.

• End cap and seal design ensure perfect fit with the filter housing, preventing unfiltered fuel bypass.

• Material Options:

• Standard Seal: Nitrile Rubber (NBR)

• Optional Seal: Fluorocarbon (FKM/Viton) for biodiesel or special fuels

• Metal Parts: Anti-corrosion treated

• Compatible Fluids: Diesel, biodiesel blends (B5-B20), some light fuel oils.

Reasons to Choose LF-P550500:

1. Protect Critical Assets: Effective water removal prevents diesel engine injector corrosion, sticking, and microbial growth, extending engine life.

2. Performance Consistency: Strict process control ensures every cartridge delivers reliable and consistent separation performance.

3. Cost Optimization: Lowers your maintenance costs while providing the same level of protection.

Typical Application Equipment:

• Diesel Generator Sets

• Mining and Construction Machinery

• Marine Auxiliary Engines

• Purification units for fuel transfer and storage systems