Reliable diesel backup power for critical applications

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.

  • 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.

Kaydon diesel purification filter elements and cartridges

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Critical Fuel Skid

Over the storage life of diesel fuel, continuous fluctuations in water content and suspended sediment significantly increase the risk of microbial growth, injector fouling, and catastrophic generator failure. This fuel polishing 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.

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Single-Pass Vessels for Bulk Transfer to/from Fuel Storage

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, these vessels protect fuel and exceed the most stringent OEM ISO Cleanliness Codes in a single pass without sacrificing filter element life. Available in configurations for comprehensive water removal or dedicated particulate filtration, these versatile systems can be tailored to address your specific fuel quality challenges.

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Single-Pass Vessels for Transfer to Day Tanks

Ensuring uninterrupted power supply during an outage requires uninterrupted delivery of clean fuel to all generators. Kaydon’s single-pass vessels seamlessly integrate into fuel transfer lines upstream of individual day tanks to provide dedicated protection against dirty fuel when usage is highest and cleanliness is most critical. Strategic placement of these vessels creates redundancy in your fuel forwarding system and lessens the burden of high-volume particulate removal on the on-engine fuel filters during high-demand events.

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Critical Fuel Cart for Day Tanks

This mobile fuel polishing cart 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 portable solution can be easily moved between day tanks to polish fuel on an as-needed basis, ensuring diesel life and protecting the critical components of modern diesel generator engines.

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Kaydon Critical Fuel Skid advanced particulate and water removal system

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

Kaydon CFW Series coalescer separator vessel for water and particulate removal in diesel systems

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.

Kaydon CFF Series in-line particulate removal vessel for diesel fuel

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.


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