Use the dosage chart overleaf to adjust treatment to obtain the optimum level. The results should be sent to WSS as stated in the Waterproof instructions. Carry out the tests immediately after sampling (following the instructions given in the Test Kit) and log the results in Waterproof. Obtain a representative sample of the cooling water. The Spectrapak Test Kit provides the necessary equipment to carry out the control tests. If the expansion tank is used then adequate circulation must be assured. NALFLEET™ Rocor NB Liquid should be dosed to a suitable point in the system. NALFLEET™ Rocor NB is not suitable for use in cooling systems containing aluminium components.Įngine Water Treatment 9-108 or Rocor NB Liquid If the system contains zinc galvanized parts, it is advisory to clean the system with Descalex prior to commencing the treatment. NALFLEET™ Rocor NB Liquid can be used in conjunction with glycols to provide suitable freeze protection. Freeze protection can be required if the vessel is to be laid up in cold areas. Degreasing should be carried out using UNITOR™ Seaclean Plus and descaling by using UNITOR™ Descalex. There are suitable WSS products to carry out the cleaning. In cases where systems are contaminated with oil and/or scale they should be cleaned before starting to apply NALFLEET™ Rocor NB Liquid. The metals which would be affected by extremes of alkalinity or acidity are protected. However, the alkalinity control is such that even if the product is accidentally overdosed, the pH of the water will remain within limits. The compound is alkaline and so will suppress acid corrosion, which would otherwise result in corrosion damage such as pitting. NALFLEET™ Rocor NB Liquid has been field tested and found to have no detrimental effects on non metallic substances such as seals, glands, packing, hoses, gaskets etc., normally used in these systems. The stable oxide film that is formed prevents corrosion caused by electrolytic action between dissimilar metals used in the system. NALFLEET™ Rocor NB Liquid is a highly effective corrosion inhibitor for the common ferrous and non-ferrous metals in cooling water systems.
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |