Hardness Control Boiler Treatment
RXSOL-50-5006-020Application & Usage
Hardness Control is formulated to form a precipitate with calcium ions which will not adhere to metal surfaces but are in a form suitable for blowdown.
Used for boilers and water softening.
Procedure
For optimum results dose Hardness Control direct to the boiler via the bypass pot-feeder. The dry powder should be dissolved in hot water (50°C) at a ratio of 1 part powder to twenty parts condensate (e.g. 500 grams/10 litres). Ensure that treatment is fully dissolved before dosing.
Technical Specification
Sampling And Testing
A sample of boiler water should be drawn for analysis daily. The sample should always be taken from the same point after blow down, cooled and tested immediately. Follow the Rxsol Hardness Test Kit instructions and fill the Boiler Water Log Form according to result results. It is important that regular testing is carried out to ensure levels of treatment are correct.
Physical Properties :
Appearance :White powder
Corrosive action : non
pH 1% solution : 8,8
Flash point : none
Notes
This treatment dosed at 1.49 grams per ton of distilled water provides 1.0 ppm phosphate.
Feed Points: Dose with other BOILER CHEMICAL / alkaline liquid by diluting withcondensate and feed directly into the system drum (below the water level) using a bypass pot feeder. For low-pressure boilers, It may be dosed to the hotwell or condensate return tank, although this is not the preferred method.
Dosage and control
|
Phophate test result in pPM PO4 |
|||||||
|
Pressure |
0 - 10 |
10 - 20 |
20 - 30 |
30 - 40 |
40 - 50 |
> 50 |
Control range |
|
0-40 Bar |
23 |
11.5 |
Satisfactory |
Satisfactory |
Blow Down |
20-50 |
|
|
41-60 Bar |
17 |
5.5 |
Satisfactory |
Blow Down |
Blow Down |
15-30 |
|
|
> 60 Bar |
5.5 |
Satisfactory |
Satisfactory |
Blow Down |
Blow Down |
10-25 |
|
Select row on righthand side for applicable pressure range. Compare test result with comment in table and dose stated amount of product per ton boiler water volume.
These are recommended values based on experience and are in no way intended to replace the boiler manufacturer's specifications or company regulations.
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