What fuels is the FPS Compact suitable for?

The FPS Compact is designed for use with diesel fuel and bio-fuel blends that have a flash point at or above 100 degrees Fahrenheit (37.8 degrees Celsius). It must not be used with gasoline, petrol, or any other flammable liquid with a flash point below this threshold, as doing so creates an immediate fire and explosion hazard. Always verify the flash point of the fuel in the tank before connecting and starting the system, particularly when working with bio-blend formulations from mixed-use storage tanks.

What are the operating modes of the FPS Compact system controller?

The FPS Compact Smart Filtration Controller supports two primary operating modes. In Automatic (AUTO) mode, the programmable digital timer controls pump start and stop times according to a user-defined schedule — up to eight independent timer programs can be set across any combination of the 15 available day configurations. In Manual (ON) mode, the pump runs continuously until the operator switches it off or back to AUTO mode, or until a safety alarm is triggered. The timer programming supports up to 8 ON/OFF cycles, and the controller retains its programmed schedule in memory during power outages.

What safety alarms does the FPS Compact include?

The FPS Compact includes three automatic safety alarms that each trigger pump shutdown and alert indication when activated. The Leak Detection alarm fires when the float switch in the system's drip tray detects a raised liquid level, preventing the pump from running until the condition is resolved and the alarm is reset. The High Vacuum alarm activates when suction-side vacuum exceeds 12 inches HG, indicating a clogged primary filter element or a flow restriction in the suction line. The High Water alarm triggers via the Water Detection Sensor Probes in the mechanical water separator when accumulated water reaches the detection threshold. All three alarms must be acknowledged and cleared via the System Controller before the pump can resume operation.

What filter options are available for the FPS Compact?

The FPS Compact primary filter housing accepts three cartridge types. The standard-issue element is a 30 micron hydrophobic back-flushable cartridge (Part No. 00530), which provides effective particulate and water capture for routine fuel maintenance. A finer 10 micron cartridge (Part No. 00510) is available where higher cleanliness specifications are required. For applications involving heavily contaminated fuel or coarser initial-pass filtration, a 60 micron stainless steel screen cartridge (Part No. 00560) is offered. All primary filter elements incorporate centrifugal water separation, and elements should be replaced at minimum every six months under normal duty cycles.

What installation environment is the FPS Compact designed for?

The FPS Compact is designed exclusively for permanent indoor installations. It should be wall-mounted on a hard, level surface within a well-ventilated indoor space operating between 41 and 104 degrees Fahrenheit (5 to 40 degrees Celsius). It is specifically sized and configured for confined-space installations such as generator set enclosures, engine rooms, and compact equipment rooms where a larger fuel polishing unit would not fit. The system should be located as close as possible to the fuel storage tank to minimise suction line length, and the pick-up line should originate from the lowest point of the tank to ensure effective water and sludge removal.

How much fuel can the FPS Compact process per day?

At its nominal flow rate of 1.3 GPM (5 LPM), the FPS Compact is capable of circulating approximately 640 gallons (2,423 litres) over an 8-hour operating shift, or up to 1,920 gallons (7,268 litres) over a full 24-hour continuous run. In practice, because the system recirculates tank fuel in a closed-loop polishing circuit, even a relatively modest-volume tank can be turned over multiple times daily, progressively removing contamination with each pass through the primary filter, water separator, and magnetic conditioner stages.

Compact Fuel Maintenance System

1.3 GPM Continuous Flow | Smart Filtration Controller | 12 / 24 VDC Powered

Fuel Management Systems · Compact Fuel Polishing · Automated Diesel Tank Maintenance

FPS Compact Fuel Maintenance System – Fully Automated Programmable Diesel Tank Cleaner with Smart Filtration Controller, DC Gear Pump, and Integrated Safety Alarms for Gen-Set Enclosures and Engine Rooms

The FPS Compact fuel maintenance system is a wall-mounted, fully automated and programmable unit engineered for continuous removal of water, sludge, and particulate contamination from diesel and bio-fuel storage tanks. Driven by a continuous-duty DC gear pump with Viton seals at a nominal flow rate of 1.3 GPM (5 LPM), the system circulates stored fuel through a primary filter and centrifugal water separator and an LG-X 500 inline magnetic conditioner on a user-programmed schedule or in manual on-demand mode. The Smart Filtration Controller provides a programmable digital timer, power-outage memory retention, and alarm indicator lights, while three independent safety alarms — leak detection, high vacuum, and high water — deliver automatic pump shutdown before a fault can cause system or fuel damage. Compact enough for installation inside gen-set enclosures, engine rooms, and confined indoor spaces, and operating on 12VDC or 24VDC power, the FPS Compact delivers round-the-clock automated fuel polishing where larger systems simply cannot fit.

1.3 GPM Continuous Flow Rate

12 / 24 VDC DC Power Input

10 / 30 / 60µ Filter Options

3 Alarms Auto Safety Shutdown

Key Features

The FPS Compact is a purpose-built compact fuel maintenance system designed for facilities that require dependable, automated diesel and bio-fuel polishing within the footprint of a gen-set enclosure, engine room, or other confined indoor installation. Unlike portable or trailer-mounted polishing equipment, the FPS Compact is intended for permanent wall mounting — operating unattended on a programmable schedule to remove water accumulation, sludge, and particulate contamination before it can degrade fuel quality or damage downstream equipment. Its continuous-duty DC gear pump with Viton seals circulates tank fuel through a primary filter and centrifugal water separator combined into a single housing, then through an LG-X 500 inline magnetic conditioner that helps stabilise diesel and bio-fuel chemistry over repeated passes. The Smart Filtration Controller ties everything together with programmable timer control, three active safety alarm channels, and automatic pump shutdown — giving operators a fully self-sufficient fuel polishing system that requires minimal day-to-day attention between scheduled filter maintenance intervals.

Smart Filtration Controller with Programmable Digital Timer and Power-Outage Memory Retention: The heart of the FPS Compact's automation capability is its integrated Smart Filtration Controller, which manages every aspect of system scheduling and protection. Operators can program up to eight independent ON/OFF timer cycles using any of 15 available day combinations, setting the system to polish fuel during off-peak hours, overnight periods, or at any interval that suits the facility's maintenance schedule. A critical practical advantage in DC-powered installations is the controller's memory retention during power outages — programmed schedules survive power interruptions and resume automatically when supply is restored, eliminating the need to reprogram the controller after every blackout. Alarm indicator lights on the controller panel provide immediate visual status for all three alarm channels, and a dedicated circuit breaker doubles as the system's power on/off switch for safe isolation during servicing.
Continuous-Duty DC Gear Pump with Viton Seals for Long-Term Reliability: The FPS Compact is driven by a continuous-duty DC gear pump rated for sustained operation at the system's nominal 1.3 GPM flow rate without the thermal cycling and wear constraints that affect intermittent-duty alternatives. Viton seal material — specified for its resistance to fuel degradation, temperature variation, and chemical attack from biocide-treated diesel and bio-fuel blends — protects all internal pump sealing surfaces against the exact chemical environment the system is designed to handle. The result is a pump assembly built to maintain consistent flow performance throughout extended polishing runs and across a broad operating temperature range of 41 to 104°F (5 to 40°C), without requiring specialised lubrication or frequent seal replacement under normal duty cycles.
Primary Filter with Centrifugal Water Separator — Multiple Micron Ratings Available: Every litre of fuel processed by the FPS Compact passes through a combined primary filter and centrifugal water separator housed in a single assembly. The standard-issue element is a 30 micron hydrophobic back-flushable cartridge (Part No. 00530) that captures particulate contamination while repelling water, directing separated water downward into the collection sump where it is held away from the clean fuel stream. A 10 micron cartridge (Part No. 00510) is available for installations where finer filtration is required to meet injection system cleanliness specifications, and a 60 micron stainless steel screen cartridge (Part No. 00560) suits initial-pass applications on heavily contaminated tanks where coarser, back-flushable filtration is operationally more practical. Water level sensor probes inside the separator housing continuously monitor accumulated water, feeding live data to the water detection alarm module and triggering an alarm and pump shutdown before water can overflow the sump and contaminate downstream fuel.
LG-X 500 Inline Magnetic Fuel Conditioner for Fuel Stabilisation: Every polishing pass through the FPS Compact includes treatment through the LG-X 500 inline magnetic fuel conditioner, mounted upstream of the primary filter on the system's inlet side. The conditioner's magnetic field acts on ferrous micro-particles and hydrocarbon molecular structures in the fuel stream, reducing the tendency of fine particulate to re-agglomerate into sludge deposits within the storage tank between polishing cycles. Over multiple automated passes, this conditioning effect contributes to a more chemically stable fuel condition in the tank, reducing the rate at which new contamination forms and supporting longer intervals between intensive cleaning interventions. The LG-X 500 is entirely passive — no moving parts, no external power draw, and no maintenance requirement beyond the periodic connection inspection that forms part of the standard six-month preventative maintenance routine.
Three-Channel Safety Alarm System with Automatic Pump Shutdown: The FPS Compact's safety architecture centres on three independent alarm channels that each trigger automatic pump shutdown and alert indication when activated, preventing continued operation under conditions that could damage the system or contaminate the fuel supply. The Leak Detection alarm fires when the float switch in the system's drip tray detects a raised liquid level — indicating a fuel leak within the system boundary — and holds the pump in a locked-off state until the fault is resolved and cleared by the operator. The High Vacuum alarm activates at 12 inches HG on the pump suction side, signalling that the primary filter element has loaded to the point of restricting inlet flow and requiring back-flushing or replacement before operation can continue. The High Water alarm triggers via the water detection sensor probes when water accumulation in the mechanical separator exceeds the detection threshold, preventing water-laden fuel from advancing through the system. All three alarms are reset through the Smart Filtration Controller once the underlying condition has been addressed, ensuring the system cannot resume without positive operator acknowledgement.
Compact Wall-Mounted Construction Sized for Confined Spaces: At approximately 14 × 10 × 8 inches (36 × 25 × 20 cm) and around 20 lbs (9.1 kg), the FPS Compact is specifically dimensioned for installations where available wall space inside gen-set enclosures, marine engine rooms, or compact plant rooms dictates what equipment can be accommodated. All components are mounted to a powder coated aluminium back plate that provides structural rigidity and corrosion resistance in the humid, fuel-vapour-present indoor environments where the system is typically installed. The 1/2 inch hose barb inlet and outlet ports accept standard-diameter flexible fuel line, keeping the plumbing footprint minimal, while brass and hydraulic steel plumbing materials throughout the system boundary deliver the chemical compatibility and long-term durability expected in continuous-service fuel handling equipment.
Dual DC Power Input Options for Generator and Vehicle Integration: The FPS Compact accepts either 12VDC at 10A or 24VDC at 5A, making it directly compatible with the two standard DC power architectures used in generator set installations, marine applications, and mobile plant equipment. This flexibility means the system can be powered directly from a generator's DC auxiliary output, from a dedicated DC distribution panel, or from an existing 12V or 24V battery system on mobile or vessel-based installations — without requiring a separate AC power supply or transformer. The low power consumption at both voltage ratings also makes the FPS Compact practical for installations where electrical capacity is limited, such as small standby generator enclosures or compact engine rooms where high-current AC loads are not available at the system mounting location.

Applications

Standby Generator Sets and Emergency Power Installations: Hospitals, data centres, telecommunications facilities, and emergency services rely on standby diesel generators that may sit unused for months before being called into service during a grid outage. Long storage periods allow water condensation, microbial growth, and oxidation byproducts to accumulate in day-tanks and bulk storage vessels, creating contamination that can prevent a generator from starting or sustaining load at the critical moment of demand. The FPS Compact addresses this risk by running automated polishing cycles on a programmed schedule throughout the standby period — continuously recirculating and cleaning stored fuel without any operator involvement — so that diesel quality is maintained at operational specification regardless of how long the generator has been on standby. Its compact dimensions make it directly installable inside most generator enclosures alongside the existing electrical and mechanical systems.
Marine Engine Rooms and Vessel Fuel Tanks: Diesel-powered vessels of all sizes — from workboats and fishing vessels to commercial ferries and offshore support craft — contend with fuel contamination driven by hull vibration, seawater ingress, condensation in partially filled tanks, and the microbe-accelerating warm environments typical of tropical and subtropical marine operations. The FPS Compact's DC power compatibility and wall-mount construction make it well suited for installation in space-constrained marine engine rooms, where it can be connected to the vessel's 12V or 24V electrical system and programmed to polish fuel during idle periods at berth or during overnight harbour stops. The system's automated operation requires no crew attention between scheduled filter servicing intervals, making it a practical fuel quality management solution for vessels with small crew complements or those operating on routes without ready access to shoreside fuel treatment services.
Remote and Off-Grid Power Generation Sites: Telecommunications repeater stations, remote mining operations, pipeline monitoring installations, and off-grid agricultural facilities often depend on small to medium diesel generators as their sole or primary power source. These sites typically have limited maintenance personnel and infrequent service visits, meaning that fuel quality degradation can go undetected for extended periods before it results in an equipment failure. Installing an FPS Compact on the generator fuel supply allows continuous automated maintenance of the stored diesel inventory between service visits, with the system's alarm outputs providing early warning of filter saturation or water accumulation that can be relayed to a remote monitoring system. The 12VDC or 24VDC power requirement integrates directly with the generator's auxiliary DC output, eliminating the need for a separate power supply at the remote site.
Industrial Fuel Storage Tanks in Manufacturing and Process Plants: Manufacturing facilities, chemical plants, and process industries that maintain on-site diesel reserves for plant emergency systems, fire pump drivers, or backup power equipment benefit from continuous fuel polishing to prevent the microbial contamination and water accumulation that are endemic to diesel stored in large fixed tanks over extended periods. The FPS Compact's programmable timer allows fuel maintenance to be scheduled during planned maintenance windows or low-production periods, integrating the polishing cycle into the facility's broader preventative maintenance programme without interfering with operational activities. Its compact footprint and wall-mount design mean it can be installed in existing plant rooms adjacent to the fuel storage tank without requiring significant modification to the installation space.
Commercial Buildings with On-Site Diesel Reserves: Office towers, hotels, shopping centres, and mixed-use commercial developments that house rooftop or basement diesel generators for life safety systems — elevator backup, emergency lighting, fire alarm power supplies, and tenant continuity systems — need those fuel reserves to remain clean and combustible throughout long storage periods between maintenance inspections. The FPS Compact can be permanently installed in the generator room or fuel store and programmed to run automated polishing cycles on a weekly or bi-weekly basis, providing facility managers and building engineers with continuous fuel quality assurance without requiring dedicated technical personnel to operate the system. Its small size, simple plumbing connections, and DC power input make it straightforward to retrofit into existing generator installations during scheduled maintenance visits.
Military Vehicles, Armoured Equipment, and Field Power Units: Military ground vehicles, field power generation sets, and armoured equipment operating in austere or forward-deployed environments frequently draw from pre-positioned fuel reserves of uncertain quality and handling history. Water ingress during field refuelling, condensation in partially filled vehicle tanks, and microbial contamination from extended bulk storage all degrade diesel quality in ways that can compromise engine reliability and operational readiness when performance is most critical. The FPS Compact's 12VDC and 24VDC power options allow it to be powered from standard military vehicle electrical systems, its compact dimensions facilitate installation in confined vehicle fuel management bays, and its automated programmable operation supports fuel maintenance without requiring a dedicated operator during extended field periods.

Technical Specifications

Specifications listed below apply to the standard FPS Compact fuel maintenance system. Replacement filter cartridges are available in 10µ (Part No. 00510), 30µ (Part No. 00530), and 60µ stainless steel (Part No. 00560) — contact us with your requirements for availability and pricing.

Parameter	Specification
Nominal Flow Rate	1.3 GPM / 80 GPH (5 LPM / 302.8 LPH)
Throughput — 8-Hour Shift	640 gallons (2,423 litres)
Throughput — 24 Hours	1,920 gallons (7,268 litres)
Primary Filter Options	10µ or 30µ Particulate Cartridge, or 60µ Stainless Steel Screen — all with Centrifugal Water Separator
Standard-Issue Filter Element	30µ Hydrophobic Back-Flushable Cartridge (Part No. 00530)
Fuel Conditioner	LG-X 500 Inline Magnetic Conditioner
Pump Type	DC Gear Pump (Continuous-Duty)
Seal Material	Viton
System Controller	Smart Filtration Controller with Programmable Digital Timer, Memory Retention, Alarm Indicators, and Breaker
Timer Programmes	Up to 8 ON/OFF Cycles — 15 Day-Combination Options
Power Supply	12VDC / 10A or 24VDC / 5A
Plumbing Material	Brass / Hydraulic Steel
Inlet Port	1/2" Hose Barb
Outlet Port	1/2" Hose Barb
Suction Capability (Primed)	10 ft (304.8 cm) Total Dynamic Head
Maximum Fluid Viscosity	5 cSt
Operating Temperature Range	41–104°F (5–40°C)
Safety Alarms	Leak Detection (Float Switch), High Vacuum (12" HG), High Water (Sensor Probes) — all with Auto Pump Shutdown
Construction	Powder Coated Aluminium Back Plate
Dimensions (H × W × D)	≈ 14" × 10" × 8" (36 × 25 × 20 cm)
Weight	≈ 20 lbs (9.1 kg)
Compatible Fuels	Diesel and Bio-Fuel Blends (flash point ≥ 100°F / 37.8°C)

Technical FAQ

Common Questions Answered

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The FPS Compact is designed for diesel fuel and bio-fuel blends with a flash point at or above 100°F (37.8°C). It must not be used with gasoline, petrol, or any other flammable liquid below this flash point threshold, as doing so creates an immediate fire and explosion hazard. Always confirm the flash point of the stored fuel before connecting and starting the system, particularly when handling bio-blend formulations drawn from mixed-use tanks.

The controller supports two primary operating modes. In AUTO mode, the programmable digital timer governs pump start and stop times according to a user-set schedule — up to eight independent ON/OFF programmes across 15 available day combinations can be programmed, and the schedule is retained in memory during power outages. In Manual (ON) mode, the pump runs continuously until the operator returns it to AUTO or OFF, or until a safety alarm trips. Both modes maintain full three-channel alarm monitoring throughout operation.

Three independent alarms are active whenever the system is operating. The Leak Detection alarm triggers when the float switch in the drip tray detects raised liquid — indicating an internal fuel leak — and locks the pump off until the fault is resolved and cleared. The High Vacuum alarm activates at 12 inches HG on the pump suction side, signalling that the primary filter element is loaded and restricting flow. The High Water alarm fires via the water detection sensor probes when accumulated water in the separator sump reaches the detection threshold. All three alarms shut down the pump automatically and require operator acknowledgement via the controller's alarm reset control before the system can resume operation.

Three primary filter cartridge types are available. The standard 30 micron hydrophobic back-flushable cartridge (Part No. 00530) suits routine diesel tank maintenance. A 10 micron cartridge (Part No. 00510) provides finer filtration for applications with stricter cleanliness requirements. A 60 micron stainless steel screen cartridge (Part No. 00560) is available for initial-pass work on heavily contaminated tanks where durability and back-flushability take priority. All elements should be replaced at minimum every six months under normal duty cycles, or more frequently on systems operating more than 8 hours per day and 5 days per week. The High Vacuum alarm will also indicate that element replacement or back-flushing is required before the scheduled interval if contamination loading is high.

The FPS Compact is intended exclusively for permanent indoor installation — it is not rated for outdoor or exposed environments. It should be wall-mounted on a hard, level surface inside a well-ventilated space within the operating temperature range of 41 to 104°F (5 to 40°C). Its compact dimensions make it specifically suited to confined indoor spaces such as generator enclosures, marine engine rooms, and plant utility rooms where larger fuel polishing equipment cannot be accommodated. The unit should be positioned as close to the storage tank as possible to minimise suction line length and support consistent pump prime.

At its nominal flow rate of 1.3 GPM (5 LPM), the FPS Compact can circulate approximately 640 gallons (2,423 litres) over an 8-hour programmed run, or up to 1,920 gallons (7,268 litres) over 24 hours of continuous operation. Because the system operates in a closed polishing loop — drawing from and returning fuel to the same tank — even smaller-volume tanks can be turned over multiple times within a single programmed cycle, progressively reducing contamination levels with each pass through the filter, water separator, and magnetic conditioner stages.