Phosphate Boiler Water Treatment Hardness Control is a white dry powder Phosphate Boiler Water Treatment product used for the reduction of hardness in boilers. Hardness Control is highly soluble in water and It will precipitate calcium hardness as a non-a
Hardness Control is a white dry powder Phosphate Boiler Water Treatment product used for the reduction of hardness in boilers. Hardness Control is highly soluble in water and It will precipitate calcium hardness as a non-adherent sludge.
A precipitant designed to elimate scale deposits and lower the hardness of water in boilers with working pressure up to 60 bars.
It is used in conjunction with alkaline liquid to prevent calcium scale deposits. Both products are used in our standard boiler water treatment programs for low-pressure boiler systems (0-32 bar) and medium-pressure steam propulsion vessels (32-60 bar).
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.
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.
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
0-588 PSI
23
11.5
Satisfactory
Satisfactory
Blow Down
20-50
41-60 Bar
589-880 PSI
17
5.5
Satisfactory
Blow Down
Blow Down
15-30
> 60 Bar
> 880 PSI
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.
Benefit and Features