Corrosion Inhibitor for Multi Metal Cooling Water

Applications

RXSOL-40-4011-020 is recommended for:

• Closed recirculating cooling-water systems
• Retort cooling-water systems
• Engine and machinery cooling circuits
• Chilled-water systems
• Closed-loop industrial cooling systems
• Multi-metal cooling circuits
• Systems containing glycol-based uninhibited antifreeze
• Industrial equipment requiring long-term corrosion protection

Cooling water treatment specified corrosion inhibitior for multi-metal containng cooling systems to operate at high or low temperatures.

Alkaline Corrosion Inhibitor blend for multi-metal protection in closed-loop and chilled cooling water CLOSED circulating system

For systems containing no aluminium, RXSOL-40-4011-020 should be dosed at 0.5 to 1% (5 L–10 L/ 1000 L) in order to give a reserve of 50 ppm of sodium molybdate. For systems containing aluminium, the dosage of 1–1.5% should be added in order to maintain a minimum reserve of 100 ppm of sodium molybdate. In certain circumstances it may be necessary to adjust the pH separately by the addition of pH CONDITIONER - your Consultant will advise. In systems requiring significant passivation/higher initial dosages may be required to yield the required inhibitor residual.

Normal treated water control limits

pH 7.0 - 9.0 (Without Aluminium)

pH 7.0 - 8.0 (With Aluminium)

For systems containing aluminium it is important to maintain the system water pH in the range 7.0 - 8.0. Occasionally depending on the water characteristics and system treatment history the pH may rise above pH 8.0 which means that the risk of aluminium corrosion is increased - if this happens then high pH can be reduced by adding an appropriate quantity of pH Conditioner.

Multi-metal corrosion protection • Built-in pH buffering • Suitable for closed recirculating systems • Helps protect steel and copper alloys • Indicating dye for easier leak identification • Compatible with uninhibited antifreeze • Suitable for cooling and retort water treatment