Cooling Systems

• Provide corrosion protection in the piping of thermal storage units and large Closed loops
• Prevents exchangers and zone valves from plugging due to corrosion
• Reduces corrosion damage to water pump impellers and seals
• Non-chromate formula contains no heavy metals

• AQL CL 333 is a corrosion inhibitor for use in chilled-water closed loops, hot-water recirculating boilers, and above-ground thermal storage systems. This product provides effective corrosion protection for metals typically found in closed-loop systems.  In addition, AQL CL 333 contains a borate buffer to maintain pH of the recirculating water in the range of 8.5 to 10.5.

• The initial dosage of AQL CL 333 is 1 liter for each 1000 liters of water in the system (1100ppm).  This will provide a sodium nitrite residual of 275 ppm as NaNO2.
• The maintenance dosage is 1 gallon of AQL CL 333 for each 1000 gallons of makeup water added to the system.  The sodium nitrite level should be maintained in the range of 250ppm to 400ppm.  The pH of the recirculating water should be in the range of 8.5 to 10.5. Do not allow the pH to drop below 8.0

• Feed AQL CL 333 to the closed-loop system using a by-pass pot feeder. For above-ground thermal storage systems, add the product at the time the system is initially charged with water.

• Recirculating water pH: 8.5 to 10
• Maximum water temperature: 350*F

• Nitrite as NaNO2: 225 to 400 ppm
• Recirculating water conductivity: 3500 Micro ohm or less
• Recirculating water pH: 8.5 to 10.5

Benefits:

• Effective at high pH
• Easy to handle, apply and control
• Cost effective

• Much faster kill rates than chlorine

• Lower corrosion rates than chlorine.
• Not affected by ammonia.

Description:  AQL  Bromactis a liquid, oxidizing biocide specially formulated to control bacteria, algae, fungi and slime in recirculating and once-through cooling water systems, breweries, pasteurizing systems, waste water systems and pulp and paper mills.  The EPA registration number is 3377-25-64488.  A bromine based biocide, AQL Bromact was developed to overcome the deficiencies of chlorine and chlorine derivatives.  It must be used in conjunction with an oxidizing catalyst such as Aqualine aql chloract.

Dosage Rates:  Initial Dose: When the system is noticeably fouled, apply sufficient AQL Bromact and AQL Chloract to achieve a residual bromine level of 0.5-1.0 ppm or as needed to maintain control.  Typically, the recommended rate is 1.3-5.2 gallon AQL Chloract for each gallon of AQL Bromact .

.METHOD OF FEED: AQL Bromact may be added to the system either continuously or intermittently or as needed, but should be added to the circulation water just before the AQL Chloract . The frequency of feeding and duration of the treatment will depend upon the severity of the problem.  It is recommended that the product be used in a manner such that the effluent discharges meet the NPDES guidelines.
 
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