Technical Information
Sheet No. 139 Issue 4
VSRT, J Series & Electric Steam Boilers
Recommended Water Conditions
IMPORTANT
It is very important that a strict water management program is followed to ensure trouble free boiler operation.
The following are recommended for feedwater and for boiler water
FEEDWATER (water entering boiler)
pH Value 8.5 to 9.5 tested at room temperature.
Hardness Less than 2.0 ppm in the form of CaCO
3
.
Suspended Solids None
Chloride Less than 50 ppm.
Organic Matter Less than 5 ppm.
Oil None
Minimum Temperature 85°C
BOILER WATER (water inside boiler)
pH Value 10.0 to 12.0 tested at room temperature.
Hardness Not detectable.
Suspended Solids Less than 100ppm.
Chloride Less than 500ppm.
Oxygen Scavenger, Sodium Sulphite 30 to 70 ppm.
Tannin 30 to 70 ppm
Phosphate 30 to 70 ppm, in the form of PO
4
.
Total Alkalinity Less than 1000 ppm.
Caustic Alkalinity Minimum 300 ppm as CaCO
3
.
Total Dissolved Solids(TDS) Less than 2000 ppm.
Iron Less than 1 ppm.
Silica Less than 150 ppm, in the form of SiO
2
.
Dissolved Oxygen None
It is critical that the boiler water pH be
alkal
ine in the range 10.0 - 12.0.
Daily boiler blowdown is essent
ial to
help prevent formation of deposits
and reduce Total Dissolved Solids
(TDS).
Consult your water treatment specialist
to e
stablish the frequency and duration
of blowdown required to achieve the
required conditions.
Eve
ry effort is made to ensure accuracy at time of going to press. However as part of our policy of continual product improvement, we reserve the right to alter specifications without prior notice.
Fulton Ltd
Tel: +44 (0)117 972 3322
5 Fernhurst Road, Fishponds, Fax: +44 (0)117 972 3358
Bristol, BS5 7FG Email: sales@fulton.co.uk
England Website: www.fulton.co.uk
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