Product information

This product supersedes product no: 777032, , 9-150.11U


  • Provides effective protection of steam & condensate systems against corrosive attack by carbon dioxide & other acidic gases
  • Reduces pickup of iron and copper in condensate as a result of corrosion suppression reliability


  • Extends the life of steam and condensate systems giving reducing maintenance costs and less down time
  • Using it with an oxygen scavenger gives a balanced control programme for increased plant reliability




Directions for use

NALFLEET™ Condensate Treatment 9-150 is a neutralising type corrosion inhibitor for the use in steam and steam condensate systems. NALFLEET™ Condensate Treatment can be used at boiler operating pressures up to 165 bar.

Dosing Method
NALFLEET™ Condensate Treatment 9-150 should be injected on a continuous basis. For continuous addition (advisable when used in conjunction with an oxygen scavenger), a suitable chemical proportioning pump is required.

Sampling and Testing
A representative sample of condensate should be drawn for analysis daily. The sample should always be taken from the same point, cooled and tested immediately. Follow the test kit instructions and log the results in Waterproof. The results should be sent to WSS as stated in the Waterproof instructions.

Dosing and Control
The dosage of NALFLEET™ Condensate Treatment 9-150 required for regular treatment will depend primarily upon the carbon dioxide content of the condensate. Typical dose rate is 10mls/tone steam. It should be injected on a continuous basis to maintain the pH of the condensate at the main condensate pump discharge of 8.5 -- 9.2 or to maintain a "p" alkalinity of 4-8ppm. NALFLEET™ Condensate treatment 9-150 may be dosed neat or diluted with cooled condensate or distilled water. It should never be fed to the surface of hot water in a boiler feed tank, but should be fed below the surface.