FPS MX-F fully automated fuel maintenance system with smart filtration controller for diesel tank cleaning
Programmable Fuel Maintenance System
4 GPM Continuous Flow | 120/230 VAC Input | LG-X 1500 Magnetic Conditioner
Fuel Polishing Systems · Automated Diesel Tank Cleaning · Compact Fuel Maintenance

FPS MX-F Automated Fuel Polishing System | 4 GPM Diesel Tank Cleaning

Ensure fuel reliability with the FPS MX-F, a fully automated, programmable fuel maintenance system designed for permanent installation. This compact unit continuously removes water, sludge, and particulate contamination from diesel and bio-fuel storage tanks. Its robust 4 GPM (240 GPH) circulation rate makes it ideal for ensuring fuel quality in generator enclosures, engine rooms, and other confined spaces.

4 GPM Continuous Flow Rate
120/230 VAC AC Power Input
10μ / 30μ / 60μ SS Filter Options
Leak + Vacuum Alarm Auto Safety Shutdown

The FPS MX-F is an advanced fuel maintenance solution engineered to stabilize diesel and bio-fuels by eliminating water, sludge, and microbial contamination. Unlike portable transfer pumps, this system is designed for permanent indoor installation, operating independently to perform routine fuel polishing without manual intervention. Whether installed inside a generator set enclosure or a marine engine room, the FPS MX-F continuously circulates and cleans stored fuel, preventing the growth of "diesel bug" and reducing the risk of filter clogs. By maintaining ISO-clean fuel standards, this compact fuel maintenance system dramatically extends the life of downstream components and guarantees fuel reliability for standby generators, data centers, and industrial operations.

The FPS MX-F is purpose-engineered for facilities requiring autonomous diesel polishing within tight spaces. Its hardware combination—a Smart Filtration Controller, continuous-duty 1/3 HP spur gear pump, centrifugal water separator, and LG-X 1500 magnetic conditioner—delivers a robust system for maintaining bulk fuel quality. The programmable automation reduces manual oversight while the integrated alarm system ensures operators are alerted to leaks, clogs, or water accumulation.

  • Smart Filtration Controller with Full Automation: Equipped with a programmable digital timer, the controller allows users to schedule up to three ON/OFF cycles per day per day of the week. The controller retains memory during power outages and provides clear visual alarm indicators for high vacuum, high water, and leak detection, ensuring the system performs its duties without constant supervision.
  • Continuous-Duty Spur Gear Pump with Viton Seals: The heart of the FPS MX-F is a robust 1/3 HP AC gear pump rated for sustained operation. Viton seals are used throughout to resist degradation from diesel, bio-fuel blends, and chemical additives, ensuring leak-free performance and long-term reliability in demanding environments.
  • Centrifugal Water Separator & Multi-Stage Filtration: Fuel first passes through a centrifugal water separator that spins out bulk water and heavy solids, followed by a high-efficiency particulate filter (10µ or 30µ) or a cleanable 60µ stainless steel screen. An optional secondary fine filter (3µ, 10µ, or 25µ) provides final polishing to remove microscopic rust, dirt, and sludge.
  • LG-X 1500 Inline Magnetic Fuel Conditioner: This passive, maintenance-free device subjects the fuel to a powerful magnetic field. The process helps de-cluster paraffin and asphaltene molecules, improving fuel stability and reducing the surface tension of water droplets for more efficient separation during the filtration cycle.
  • Comprehensive Safety & Alarm Suite: Integrated sensors provide fail-safe protection and operational awareness. The system features automatic pump shutdown upon detection of a fuel leak, high vacuum indicating a clogged filter (factory set at 16" Hg), or excessive water accumulation in the sump. Alarms must be manually reset, ensuring personnel are notified of any service requirements.
  • Compact, Space-Saving Wall Mount Design: Sized at just 23" x 26" x 9" (HxWxD), the FPS MX-F mounts directly to a wall inside tight mechanical rooms. The powder-coated aluminum backplate supports all components—including the pump, controller, and filter housings—providing a rugged, self-contained unit that requires minimal floor space.
  • Standby Generator Set Enclosures: Long idle periods allow water condensation and sludge to accumulate in generator tanks. The FPS MX-F installs inside the generator housing to run automated polishing cycles, ensuring the engine receives clean fuel during a power outage.
  • Marine Engine Rooms: Vessels operating in high-humidity environments are prone to water ingress in fuel tanks. This system connects to shipboard AC power, removing emulsified water and biological growth to prevent engine stalling and filter blockages at sea.
  • Data Center Fuel Storage: Facilities with backup generators require guaranteed fuel readiness 24/7. The programmable controller allows operations teams to schedule fuel turnovers during low-load periods, eliminating the "dead storage" that leads to fuel degradation.
  • Off-Grid Power Generation: Remote telecom towers and mining sites often have limited maintenance access. The FPS MX-F automates fuel maintenance between service visits, with alarm outputs that can be relayed to central monitoring systems for early warning.
  • Industrial & Agricultural Fuel Reserves: Manufacturing plants and farms storing large volumes of diesel for heavy equipment can use this system to polish fuel at the point of storage, reducing the costs associated with fuel polishing services and unexpected downtime.

Specifications apply to the standard FPS MX-F fuel maintenance system. Primary filter cartridges are interchangeable. The standard-issue element is the 30μ particulate filter unless otherwise requested. At 50 Hz, nominal flow rate decreases from 4 GPM to 3.2 GPM.

ParameterSpecification
Nominal Flow Rate4 GPM / 240 GPH (15 LPM / 984.2 LPH)
(3.2 GPM at 50 Hz)
Throughput — 8 Hours1,920 gallons (7,268 liters)
Throughput — 24 Hours5,760 gallons (21,804 liters)
Primary Filter Options10µ or 30µ Particulate / 60µ Stainless Steel Screen with Centrifugal Water Separator
Secondary Filter Options3µ, 10µ, or 25µ Fine Filter / 3µ or 10µ Water Block Filter
Fuel ConditionerLG-X 1500 Inline Magnetic Conditioner
Pump Type1/3 HP Spur Gear Pump (Continuous-Duty, Viton Seals)
System ControllerSmart Filtration Controller with Programmable Timer & Alarm Indicators
Power Supply120V / 60Hz / 1Ph or 230V / 50Hz / 1Ph
Plumbing MaterialBlack Iron
Inlet/Outlet Ports3/4" Equivalent – JIC 37° Flare
Primed Suction Capability15 ft. vertical lift or 100 ft. horizontal run
Fluid Viscosity Range1 – 10 cSt
Operating Temperature Range50 – 140°F (10 – 60°C)
Safety Alarms & ShutdownsLeak Detection (Float), High Vacuum (16" Hg)
ConstructionPowder Coated Aluminum Back Plate
Dimensions (H × W × D)≈ 23" × 26" × 9" (58 × 69 × 23 cm)
Weight≈ 70 lbs (31.8 kg)
Compatible FuelsDiesel and Bio-Fuel Blends (flash point ≥ 100°F / 37.8°C)

How the FPS MX-F Fuel Maintenance System Works

The FPS MX-F operates on a closed-loop circulation principle to restore and maintain fuel quality. Power is applied to the Smart Filtration Controller, which activates the 1/3 HP gear pump based on a programmed schedule (or via manual override). Fuel is drawn from the lowest point of the storage tank—where water and sludge naturally settle—and enters the system through the inlet port.

The fuel first passes through the LG-X 1500 magnetic conditioner, where a high-intensity magnetic field breaks down molecular clusters and conditions the fuel for better water shedding. It then flows into the primary filter housing, featuring a centrifugal water separator that spins out bulk free water and heavy solids. The fuel passes through the selected cartridge (10µ, 30µ, or 60µ SS), capturing fine particulates while the coalescing media repels remaining water into the sump. Clean, polished fuel exits the primary stage, is pushed by the pump through the optional secondary fine filter for final particulate removal, and returns to the tank. Throughout this process, the controller monitors vacuum pressure, positive pressure, and water levels; if a clog or water accumulation is detected, the pump shuts down and triggers the corresponding alarm to alert personnel.

Technical FAQ

Common Questions Answered

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The primary filter is a combination water separator and particulate filter. It uses centrifugal force to spin out bulk free water and heavy sludge from the fuel. The secondary filter is a fine filter that polishes the fuel after it leaves the pump, capturing microscopic contaminants to ensure the fuel is exceptionally clean before it returns to the tank.

The LG-X 1500 is a passive, maintenance-free device that applies a strong magnetic field to the fuel. This process helps break down molecular clusters of paraffin and asphaltenes, which stabilizes the fuel and reduces the surface tension of entrained water, making it easier for the system's water separator to remove water from the fuel stream.

No. The system is strictly designed for diesel and bio-fuel blends with a flash point of 100°F (37.8°C) or higher. Using the system with gasoline or other highly flammable liquids presents a serious risk of explosion and fire.

The system supports several upgrade options, including an automatic water drain (AWD) to automatically remove collected water, a manual additive injection port for fuel dosing, multi-tank polishing capability using motor-operated valves, and a multi-point flow path for better tank cleaning coverage. A controller upgrade may be required for certain combinations.

When primed, the system is capable of a vertical lift of 15 feet or a horizontal run of 100 feet of plumbing using the minimum recommended piping size with no additional restrictions. Any combination of vertical and horizontal runs will reduce the suction capability proportionally.

Regular maintenance includes checking and replacing the primary and secondary filter elements, draining collected water from the water separator, and inspecting the LG-X 1500 fuel conditioner for debris. The system's smart controller provides visual alarms to indicate when service is needed, such as a high vacuum alarm signaling a clogged filter.

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