What maintenance is required for the STS 6010?

Routine maintenance includes draining collected water from the primary filter sump, replacing the primary and secondary filter elements, and inspecting the system for leaks. The smart controller provides visual alarms to indicate when service is needed, such as a high vacuum alarm signaling a clogged filter.

Can the STS 6010 be integrated with external monitoring systems?

Yes. The system controller provides two normally open dry contacts for remote alarm monitoring, including a summary alarm for faults and a dedicated leak detection alarm. It also supports external interlocks for remote shutdown capabilities, allowing seamless integration into centralized control systems.

STS 6010 fuel polishing system – automated 10 GPM diesel fuel polisher with NEMA enclosure

Programmable Fuel Polishing System

10 GPM Continuous Flow | 120/230 VAC Input | LG-X 3000 Magnetic Conditioner

Fuel Polishing Systems · Automated Diesel Tank Cleaning · NEMA-Rated Enclosure

STS 6010 Fuel Polishing System – 10 GPM Automated Diesel Fuel Maintenance

The STS 6010 is a fully automated, programmable fuel polishing system that continuously removes water, sludge, and particulate contaminants from diesel and bio-fuel storage tanks. With a robust 10 GPM flow rate and a NEMA-rated enclosure, this unit ensures reliable fuel quality for standby generators, industrial fuel farms, and marine applications by operating independently on a user-defined schedule.

10 GPM Continuous Flow Rate

120/230 VAC AC Power Input

10μ / 30μ / 60μ SS Filter Options

Leak + Vacuum Alarm Auto Safety Shutdown

The STS 6010 fuel polishing system is an enclosed, fully automated solution designed to preserve the integrity of stored diesel and bio-fuels. It effectively eliminates free water, sludge, microbial contamination, and solid particulates from fuel tanks. Operating at a nominal flow rate of 10 gallons per minute, the system can polish up to 4,800 gallons of fuel during an 8-hour runtime. Its programmable Smart Filtration Controller allows operators to schedule automatic filtration cycles, while integrated sensors provide protection against leaks, high vacuum, and high pressure. Housed in a NEMA-rated enclosure, the STS 6010 is suitable for both outdoor and indoor installations, making it a versatile choice for critical power and fuel storage applications across various industries.

Key Features

The STS 6010 is purpose-engineered for facilities requiring autonomous diesel polishing with a reliable 10 GPM flow rate. The combination of a smart PLC-based controller, continuous-duty 3/4 HP spur gear pump, two-stage filtration, and LG-X 3000 magnetic conditioner delivers robust fuel maintenance.

Smart Filtration Controller: The system features an advanced PLC-based controller with an LCD display. It allows for fully automated and programmable operation, enabling users to set up to three start and stop times per day for each day of the week. This ensures routine fuel maintenance without manual intervention, with memory retention during power outages.
Continuous-Duty 3/4 HP Gear Pump: Equipped with a robust 3/4 HP spur gear pump and Viton seals, the system is designed for continuous-duty operation. This ensures reliable fuel circulation at the rated flow rate across a range of diesel and bio-fuel viscosities, minimizing wear and tear for long-term durability.
Two-Stage Contaminant Removal: The primary stage combines a centrifugal water separator with a hydrophobic filter element to efficiently remove bulk water and large particulates. The secondary stage uses fine filter cartridges (available in multiple micron ratings) to capture microscopic solid particles, delivering clean, polished fuel that meets stringent engine requirements.
Integrated Safety & Alarm Suite: To protect both the system and the fuel storage tank, the STS 6010 includes automatic pump shut-down features. It monitors for leak detection, high vacuum (16 in-Hg), high pressure (22 PSI), high water accumulation, low/no flow conditions, and pump overload, providing alert indications for timely servicing.
Durable NEMA-Rated Enclosure: The system is housed in a rugged NEMA 3R-rated powder-coated enclosure as standard, with optional NEMA 4 or 4X stainless steel upgrades. This design protects internal components from rain, snow, sleet, windblown dust, and ice formation, allowing for confident installation in harsh outdoor environments or confined indoor mechanical rooms.
LG-X 3000 Magnetic Fuel Conditioner: An inline magnetic conditioner that stabilizes diesel and bio-fuels by breaking down and de-clustering paraffin, asphaltene, and other degradation compounds. This passive process improves fuel filterability, enhances combustion efficiency, and extends the overall storage life of the fuel.

Applications

Standby Power Generation: Prevents fuel degradation in diesel generator tanks for data centers, hospitals, and telecom facilities, ensuring reliable startup and operation during power outages by delivering clean fuel on demand.
Industrial Fuel Storage Farms: Maintains the quality of bulk diesel stored for heavy equipment, boilers, and fleet vehicles in industries such as mining, construction, and agriculture, reducing maintenance costs and unscheduled downtime.
Marine & Offshore Vessels: Protects marine engines from water and sludge buildup in fuel tanks caused by condensation and biological growth, enhancing engine reliability and reducing filter changes in demanding maritime environments.
Municipal & Government Facilities: Maintains fuel integrity for emergency response fleets and backup generators at critical infrastructure sites, ensuring compliance with operational readiness requirements and extending fuel storage life.
Fuel Distribution Terminals: Polishes fuel before transfer to ensure product quality meets specifications, reducing the risk of customer complaints and engine issues related to contaminated fuel.

Technical Specifications

Specifications apply to the standard STS 6010 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 10 GPM to 8 GPM.

Parameter	Specification
Nominal Flow Rate	10 GPM / 600 GPH (38 LPM / 2,271 LPH) (8 GPM / 480 GPH at 50 Hz)
Primary Filter Options	10µ or 30µ Particulate / 60µ Stainless Steel Screen with Centrifugal Water Separator
Secondary Filter Options	3µ, 10µ, or 25µ Fine Filter / 3µ or 10µ Water Block Filter
Fuel Conditioner	LG-X 3000 Inline Magnetic Conditioner
Pump Type	3/4 HP Spur Gear Pump (Continuous-Duty, Viton Seals)
System Controller	SFC70 Smart Filtration Controller with Safety and Alarm Features
Power Supply	120V / 60Hz / 15A / 1Ph or 230V / 50Hz / 15A / 1Ph
Plumbing Material	Black Iron with Anti-Corrosion Coating
Inlet/Outlet Ports	1" NPT
System Enclosure Rating	NEMA 3R Powder Coated (Standard), NEMA 4, or NEMA 4X Stainless Steel
Controller Enclosure Rating	NEMA 4 and UL508a
Dimensions (H × W × D)	≈ 37″ × 60″ × 12″ (94 × 152 × 31 cm)
Weight	≈ 513 lbs (233 kg)
Vacuum Switch Setpoint	16 in-Hg (Factory Calibrated)
Pressure Switch Setpoint	22 PSI (Factory Calibrated)
Safe Maximum Vacuum	18 in-Hg
Safe Maximum Pressure	50 PSI
Fluid Compatibility	Diesel, Bio-fuels (up to B100)
Operating Temperature Range	Ambient: -4°F to 104°F (-20°C to 40°C)
WARNING: Not for use with fluids having a flash point below 100°F (37.8°C).

Technical FAQ

Common Questions Answered

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The STS 6010 fuel polishing system delivers a nominal flow rate of 10 gallons per minute (GPM) or 600 gallons per hour (GPH) at 60 Hz. When configured with a 50 Hz power supply, the flow rate adjusts to 8 GPM.

Yes. The STS 6010 is housed in a NEMA 3R-rated powder-coated enclosure as standard, which protects against falling rain, sleet, snow, and external ice formation. Optional NEMA 4 or 4X stainless steel enclosures are available for additional protection against windblown dust, hose-directed water, and corrosive environments.

The system removes free and emulsified water, sludge, rust, microbial contamination, and solid particulate matter. Its two-stage filtration process ensures the fuel is polished to a high standard, protecting downstream engines and equipment.

The LG-X 3000 is an inline magnetic fuel conditioner that stabilizes diesel and bio-fuels. It helps break down natural fuel degradation compounds, improving filterability and combustion characteristics.

The system is capable of a vertical lift of up to 15 feet or a horizontal run of up to 100 feet when 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 system for leaks. The system's smart controller provides visual alarms to indicate when service is needed, such as a high vacuum alarm signaling a clogged filter.