OSO Clean Fuel Polishers

Designed and Built by Cruisers for Cruisers

The OSO Clean family of diesel fuel polishers was in development for two years to fill the need for a low cost, highly effective, diesel fuel polishing system that combined the best of the available technologies and provided unattended diesel fuel polishing aboard private and commercial vessels.

Introduction
The OSO Clean Model 101 is our most popular model. With four main components to the OSO Clean Model 101; a fuel purifier, a final filter, the pump and the digital timer, this unit is easy to install and maintain.

FUEL PURIFIER
The fuel purifier cleans and dries the fuel by subjecting the fuel to a spinning motion that is not dependent on the flow rate of the fuel. The purifier has no moving parts and no filter element. This purifier was developed about 15 years ago for the long haul transportation industry and was marinized about ten years ago. The marinized models can accommodate from 1.8 to 15 gallons per minute. The output from the purifier is free of visible water and particulate matter l arger than 10 microns. The water and particulate matter removed by the purifier is diverted to a reservoir in
the purifier for operator removal. There is a remote alarm that will signal when the reservoir is approximately 40% full, thus allowing the operator time to respond. The marinized purifier has received certification by the American Bureau of Shipping.

As an interesting note, we make fuel purifiers for the fuel handling and storage industry that can process flow rates up to 400 gallons per minute.

FINAL FILTER
The fuel filter is a mass or bulk type filter developed for the off -shore oil industry. The
manufacture of these filters has been in business for almost thirty years. The dry, 10 micron clean, fuel from the purifier enters the final filter and is metered so that
its one gallon per minute rate is not exceeded. The fuel passes thru the inexpensive, replaceable filter element which removes particulate material to the sub- micron size.

PUMP
The pump is available in 12 or 24 volt D.C. and is rated for the continuous pumping of
diesel fuel, with a flow rate capacity of 60 gallons per hour at seven psi.

TIMER
The programmable, digital, timer is easily programmed by the operator to operate the
system to the program that best suits the application. By simply setting a set of dip switches, the operator sets the operating parameters; e.g., six hours purification followed by a 20 hour off period; 10 hours purification followed by a 40 hour off period, etc. There is also a Manual position tha t will run the system continuously.

OSO CLEAN MODEL 101
The OSO Clean Model 101 is the flagship of our product line. It will maintain fuel tanks up to the 500 gallon range. We are constantly trying to improve the design of our units and Model 101 has grown just a bit from its introductory size about one year ago. The OSO Clean Model 101 is mounted on a 14"H x 18"W piece of white starboard and is 10 ½” deep. These dimensions also define the operating envelope for this unit which means you can install the unit vertically on a bulkhead with the top of the base against the overhead and be able to service the fuel filter element. The unit draws about two amps at 12 VDC and about one amp at 24 VDC.

The dirty fuel enters and exits the OSO Clean via ½" FNPT fittings. Because there are so many different configurations for boat tankage, we leave the integration of the OSO Cle an into the boat's fuel system up to the Owner. We are available for consultation and to provide a piping plan for multi- tank situations.

CUSTOM DESIGN
If any individual tank is much larger than 500 gallons, than we need to use a larger pump and a larger fuel purifier. These units are all custom designed for the particular application. On these larger units, we do not install the mass type filter because it is limited to a flow rate of 60 gallons per hour. We depend on the additional turbulence from a higher capacity pump to scour the tank more thoroughly and find that the dry fuel cleaned to the ten micron level by the purifier is quite satisfactory for diesel engine use.

JTB Marine can custom design, and build, a system to meet your particular needs including manifolds to accommodate multiple tanks; valving to allow placing the purifier in the engine fuel supply line; and systems for very large installations. Contact us for an estimate.

Finally, there are other systems out there; most of them have a spring wound timer that must be rewound at the end of each purification cycle, and a standard primary fuel filter The pump may or may not be the industry standard Walbro Model 6092. Some include a magnetic device. All of them are far more costly than the OSO Clean Model 101. The OSO Clean Model 101 retails for $1,750.

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