Closed System Chemicals

Arco Product

The other type of recirculation methodology is the Closed Recirculation system technique. In it, water is recirculated in the system without bleed-off. Hence, concentration increases with every cycle leading to numerous water treatment problems. The following are some of our products which counter the problems faced by closed system users:




It is a liquid nitrite-based product for corrosion control in chilled water systems as well as in hot water heating systems


Contains alkalinity buffering agents together with a specific inhibitor for copper and its alloys


Prevents corrosion of ferrous and copper compounds, pitting and scale formation


Provides non-chromate film forming inhibition




It is a molybdate based liquid product containing a copolymer and a specific inhibitor for copper and its alloys


Prevents corrosion of ferrous, brass and copper compounds


Performs equally well on soft, medium and hard water as well as on demineralized water


Does not contain Zinc or Phosphate




It is a nitrite based compound containing sequestering agents and inhibitors with alkaline builders


Provides excellent corrosion protection of the cooling system including piston jackets, pumps, coolers and piping


Prevents attack of acids on metals found in the diesel engine system


For use in Hot & Chilled water systems