
Critical Fuel Systems
These solutions leverage 80 years of diesel purification experience to deliver contaminate-free fuel to backup generators in mission-critical applications, ensuring the reliability of the world’s most advanced diesel engines.
Our advanced systems:
- Eliminate water and prevent microbial growth in stored diesel
- Prevent premature degradation of stored diesel
- Accommodate green fuel products such as Hydrotreated Vegetable Oil (HVO) and Biodiesel blends
- Mitigate contamination resulting from storage tank agitation
- Exceed the most stringent OEM cleanliness requirements in a single pass
- Maintain fuel quality standards during high usage events when fuel consumption is highest and quality is most critical
These systems offer a range of flow rates and installation flexibility designed to meet diverse operational needs. Whether used for continuous bulk fuel conditioning or single-pass polishing during transfer, they provide a complete, economical and versatile solution.
Related Products

Options for Systems Integration


Critical Fuel Skid
CFS Series
Kaydon’s Critical Fuel Skid combines our advanced particulate removal and water separation technologies to remove 100% of damaging water and deliver ISO cleanliness codes far exceeding the most stringent industry standards. This packaged solution draws fuel from bulk storage, polishes it, and returns it back to storage on a continuous or as-needed basis, ensuring diesel life and protecting the critical components of modern diesel generator engines.
Critical Fuel/Water Separator Vessels and Particulate Vessels

In-line Water and Particulate Removal
CFW Series
Kaydon’s advanced coalescer/separator technology integrates water separation and particulate capture to ensure fuel quality during both routine transfer and high usage events. Designed for integration into facility fuel transfer lines, Kaydon’s coalescer/separator vessels remove 100% of damaging water and ensure OEM ISO Cleanliness in a single-pass. They can also be paired with particulate removal vessels to achieve cleanliness far exceeding the most stringent industry requirements.

In-line Particulate Removal
CFF Series
Maintaining fuel cleanliness is essential during high usage events, when fuel consumption is highest and quality is most critical.
Designed for integration into facility fuel transfer lines, Kaydon’s particulate removal vessels efficiently remove particulates and exceed the most stringent OEM ISO Cleanliness Codes in a single pass without sacrificing filter element life.