Technical specifications
FIPRO AK 973 is a liquid product, a synergistic blend of filming amines, neutralizing amines, polymers, and corrosion inhibitors for copper.
Use and Applications
FIPRO AK 973 is an organic product that prevents scaling and corrosion thanks to its ability to form a protective film in hot water circuits, closed cooling circuits, and chiller circuits.
The filming amine contained in FIPRO AK 973 creates a protective film on the metal surface. This film in turn acts as a barrier, separating dissolved oxygen from the metal surface; this helps prevent corrosion phenomena.
FIPRO AK 973 helps maintain the pH of closed circuits within a range between 9.0 and 9.5. At these pH values, the corrosion processes of copper and steel are minimized, thanks also to their passivation state.
The filming amine contained in FIPRO AK 973 modifies the crystalline structure of calcium carbonate, making it amorphous. The resulting precipitate is poorly adherent and can be easily removed. Furthermore, the anti-scaling properties of the product are enhanced by the presence of polymers with high dispersing capacities.
Filming amine technology is based on the formation of a monomolecular film that is adsorbed onto the metal surface. This film represents a separation barrier between the water and the surface; the diffusion capacity of oxygen through this film is reduced by 90%, and this helps to reduce corrosion phenomena.
Copper protection is enhanced by the presence of a specific corrosion inhibitor.
The combination of filming amines with neutralizing amines makes the product even more complete.
Neutralizing amines react with free carbon dioxide and help the pH reach the desired values.
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Bath control
Due to the dispersing effect, old deposits present in the system will be removed.
To prevent the recirculation of these materials throughout the system, we recommend following these procedures:
Preferably install a filter on the recirculation line, which works by separating suspended materials and also operates on a timer
Flush and fill the system alternately at least once before starting up the plant.
The filming amine residue can be determined using appropriate methods by the Fiprokim Technical Service.
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Power supply
The dosage of FIPRO AK 973 is specific to each circuit and should preferably be defined with the help of a Fiprokim technician.
In general, however, the dosage can vary from 250 to 2000 ppm relative to the volume of the entire system.
The optimal value is reached when the filming amine (CFA) residue is determinable in a range of 0.5 and 2.0 g/m3.
The effective dosage of FIPRO AK 973 can be further verified by monitoring the pH, which must settle between 9.0 and 10.0.
FIPRO AK 973 should preferably be dosed in concentrated form; dilution is not recommended.
Dosing can also be done with an automatic device, which doses proportionally to the system make-up.
All components of the dosing system that come into contact with the product must be made of material resistant to alkaline substances (e.g., PVC, PE). Viton should be avoided.
Storage
All parts in contact with FIPRO SG 596 can be constructed of chrome-nickel steel, AISI 321, or chrome-nickel-molybdenum steel, AISI 316Ti. For transport, storage, handling, and discharge of effluents, follow current guidelines and regulations. For further information on the product, consult the Safety Data Sheet. Store the product in its original, sealed packaging, in a cool place, protected from frost and direct sunlight.
Applications
Piping circuits, heat exchangers, evaporators, boilers
Water conditioning
Prevention of scale and inorganic and organic deposits in open and closed circuits
Prevention and arrest of localized corrosion in circuits and piping
Regulation of salinity and hardness
Reduction of bacterial flora and prevention,
Sanitization
Cleaning and maintenance of circuits
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