Description
Treatment for Open Circuit Evaporative Cooling Systems
Description and Use
Accepta 2313 is an alkaline zinc phosphonate based multi-functional scale and corrosion inhibitor for open cooling systems. The product benefits from the inclusion of a dispersant co-polymer which extends the solubility of the Zinc aiding stability over a wide range of temperature and pH variations and provides scale and corrosion control over a wide range of water qualities and operational conditions.
Dosage Rates
Like most film forming corrosion inhibitors, maximum protection is afforded if a pre-treatment period is adopted. Accepta 2313 is dosed at 3 times the normal dosage for a period of 5 days at the start of the treatment programme, enabling a strong film to be built up quickly. Similarly, should the normal dosage be interrupted for any length of time, an elevated dosage for a short period of time will re-establish maximum protection in the shortest possible time.
Accepta 2313 should be dosed to maintain a minimum reserve of 100ml/m3 in the system water at all times. For maximum control continuous dosing is desirable, using a water meter controlled dosing system.
Dosage (ml/m3 of make-up) = Reserve required in recirculation / Concentration factor
Eg. 100ml/m3 / 5 (cf) = Dosage rate of 20ml/m3 of make-up
Typical Properties
Colour…………………………………. Light brown
Odour…………………………………. Characteristic. Ammonia
Relative Density…………………… 1.25-1.30
pH-Value…………………………….. >13
Solubility…………………………….. Soluble in water
