Caretreat Valves

Caretreat Valves prevents for high temperature corrosion and fouling due to vanadium and sodium in the fuel. During combustion, these elements oxidize and form semi-liquid and low melting salts (vanadium pentoxide), which adhere to exhaust valves and turbochargers. In practice, the extent of hot corrosion and fouling are generally maintained at an acceptable level through temperature control, an operational solution, and material selection. In addition, Caretreat Valves has been developed to control the formation of these salts. Vanadium pentoxide has a melting point of 670 ˚C and is corrosive in a liquid state. Caretreat Valves reacts with vanadium oxides resulting in higher melting points, over 1.100 ˚C. The combustion process of these components results in a relatively harmless ash.

• Reduces deposits caused by combinations of sodium, vanadium and sulfur in combustion zones, turbochargers and especially on exhaust valves
• Increasing exhaust valve life substantially
• Raising fuel ash sinter and melting point temperatures above the normal engine operating temperatures
• Reduces turbocharger fouling
• Reduces high temperature fused salt corrosion of valve alloys
• Modifying vanadium compounds to non-adherent ash forms

Caretreat Valves has been formulated primarily for use in 2-cycle and 4-cycle medium speed diesel engines which are highly turbocharged and in which premature exhaust valve failure is a frequent problem.

The dosing point location varies depending on engine fuel system's layout. The most efficient and economical dosing method is obtained with a metering pump, dosing the additive for example in the suction side of the booster pump.

Dosing rates are depending upon engine characteristics, operating conditions and especially the quality of the fuel. Consult your local Marine Care Service Engineer for recommendation of dosage, etc. based on specific problems and requirements onboard.

Marine Care supplies a complete range of dosing equipment for fuel oil treatment.

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For detailed information on safety and health, please refer to the Material Safety Data Sheet MSDS and/or product label.