Diesel Fuel Filtration and Polishing Systems for Bulk Storage and Industrial Applications
High Purity Northwest builds diesel fuel filtration systems for removing water and particulate contamination from bulk fuel storage tanks and industrial fuel systems. Our systems are multi-stage filtration and separation units that use the latest technology for fine particle and water removal, keeping stored diesel clean, dry, and ready for critical service.
What Is a Diesel Fuel Filtration System?
A diesel fuel filtration system, also referred to as a fuel polishing system or diesel fuel conditioning system, is a complete treatment unit designed to remove water, particulate matter, and microbial contamination from stored or circulating diesel fuel. In bulk storage applications, fuel degradation is an ongoing concern. Water enters tanks through condensation and temperature cycling; particulates accumulate over time, and microbial growth can develop in the presence of moisture. Left untreated, contaminated fuel damages injectors, clogs filters, and causes engine failure at the worst possible time. A properly sized diesel fuel filtration system eliminates these risks by continuously conditioning stored fuel to a target ISO cleanliness level.
Ultra-low sulfur diesel presents additional filtration challenges that are well documented in the industry. The refining process that removes sulfur also strips the natural lubricity and biocidal properties of conventional diesel, making ULSD more susceptible to microbial growth and acetic acid formation when water contamination is present. This accelerates corrosion of fuel system components and can degrade filtration equipment over time if not properly managed. Systems handling ULSD require careful materials selection and filter element specification, and regular fuel conditioning is more critical than it was with conventional diesel formulations.
Bulk Fuel Filtration Systems
Diesel fuel and oil filtration system designed to remove harmful contaminants to increase equipment performance and longevity.
Inline High Flow Two Stage Fuel Filtration Skid
Highly efficient high flow diesel filtration system with LPC designed to separate water and other harmful particles.
FFCS Series 75 GPM Two Stage Complete Fuel Filtration System
System Features and Specifications
Our diesel fuel filtration and polishing systems are multi-stage units built around an integrated diesel fuel water separator and fine particulate filtration stages in a single package. The water separator utilizes high-efficiency coalescing technology to remove both free and emulsified water from the fuel stream before it reaches the downstream filter elements. Absolute-rated microglass filter elements then bring the fuel to the target cleanliness levels required by sensitive injectors and fuel system components. Each system functions as a complete diesel fuel purifier, addressing water, particulate, and, in applicable configurations, microbial contamination in a single pass.
Available in a wide range of flow rates, our diesel fuel filter systems can be sized for applications ranging from small standby tank systems to large bulk fuel storage facilities. Condition monitoring options, including inline water detection and particle counting, are available to provide continuous visibility into fuel quality and system performance.
Applications
High Purity Northwest diesel fuel filtration systems are used across a broad range of industries where fuel quality and availability are critical. Standby power and emergency generator applications represent one of the most common use cases, where stored fuel must remain clean and dry for years between use and perform without failure when called on. Data centers, hospitals, military installations, and utilities rely on our fuel polishing systems to maintain generator readiness. Our diesel filtration systems are also used in bulk fuel storage and transfer operations, marine fueling, construction and mining equipment, and gas turbine operations where diesel is used as a backup or secondary fuel source.
Why High Purity Northwest
High Purity Northwest has been designing and manufacturing fluid filtration systems since 1995. Our diesel fuel filtration systems are built with the same engineering standards applied across our full product line, with component selection and system design driven by the demands of the application. We have supplied fuel filtration systems to U.S. Army Corps of Engineers facilities, defense contractors, utilities, and industrial operations throughout the United States. Systems ship complete and ready to operate with full documentation, including electrical schematics and maintenance manuals.
Fuel Polishing Systems
Water and particulate removal solutions for diesel fuel applications using Kidney Loop Systems and Complete In-line Filter Systems
Mobile Diesel Fuel Filtration Systems
100 GPM Diesel Fuel Multi-Stage Fuel Filtration Trailer with Explosion Proof Electrical Controls
High Flow Fuel Filtration and Polishing Trailer for Diesel and Gasoline
Multi Stage Trailer System Components for filtration and water removal from fuels
Get a Customized Quote for Your Project
Tell us about your project, and we’ll put together a system recommendation and send you a quote for your project needs.
Request a Quote
To narrow your scope of what you’re looking for, please fill out this form.
Product Literature
Diesel Fuel Conditioning Systems
Have a question?
Frequently Asked Questions
What is the difference between a diesel fuel filtration system and a fuel polishing system?
How do I know if my stored diesel fuel needs filtration?
What contaminants do your systems remove?
What flow rates are available?
What industries do you serve?
Product Gallery
