Use F = 23 for boilers up to 30 bar.
Most industrial and utility boilers globally operate between 10–40 bar (low to medium pressure steam production).
F = 23 works well for boilers using softened feedwater, which is very common internationally.
Even for pressures slightly above 35 bar (up to 45 bar), using F = 24 still keeps treatment safe and effective without under- or overdosing.
Manage Phosphate reserve after dosing the product as per below:
|
Boiler Pressure |
Phosphate Reserve |
|
0–20 bar |
30–70 ppm |
|
21–40 bar |
20–50 ppm |
|
41–60 bar |
20–40 ppm |
|
61–70 bar |
15–30 ppm |
Maximum pressure limit for this product is 60 bar.
OR Simply follow the below Directions for Use of RXSOL Corrosion Inhibitor to prevent corrosion acid attack and scaling in your boiler
RXSOL Boiler Corrosion Scale Treatment should be fed continuously in order to properly protect the boiler. Boiler Corrosion Scale Treatment can be fed neat or in any convenient dilution made up in soft water or cooled condensate. Boiler Corrosion Scale Treatment should be dosed using individual chemical dosing unit, must not be mixed with oxygen scavengers or condensate system corrosion inhibitors in concentrated form (e.g. concentrated chemical products should not be mixed together).
Sampling and Testing
Boiler Corrosion Scale Treatment is normally used in conjunction with RXSOL Alkalinity Control treatment in a conventional alkaline phosphate treatment programme for HP boilers, where independent control of phosphate and alkalinity control is required.
Dosing and Control
The dosage of Boiler Corrosion Scale Treatment depends on a number of operational factors such as feed-water quality, boiler design and steam rate. Control of Boiler Corrosion Scale Treatment is by a simple test to give the required level of phosphate (as PO4) in the boiler water. A simple Hardness Treatment test kit is available for this purpose. NOTE: Dependent on water quality, Boiler Corrosion Scale Treatment dosed at 0.25 liters/ton will increase the phosphate reserve by the order of 10mg/l.