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PRODUCT INFORMATION

BC-P

INTRODUCTION 5. Easy to test and control by using standard
methods.
The term scale describes a continuous, adherent 6. Optimal economic dosage readily maintained.
layer of foreign material formed on the water side of 7. Help key surfaces clean for maximum heat
a surface through which heat is exchanged. By transfer and corrosion resistance through effective
adding certain chemicals the growth of scale can be boiler sludge control.
inhibited and the insoluble particles can be dispersed 8. Reduced downtime, lower fuel and maintenance
in the recirculating water and removed by blowdown. costs.
Should the particles come out of suspension, 9. Can be used over a broad range of temperature,
however, they can accumulate as sludge in quiet pressure and pH.
selections of a boiler. Deposit is a rather general
term applied to more-or-less loose accumulations
often found in less turbulent sections of boiler and SPECIFICATION
water – treating systems. Scales are objectionable
because of their insulating effect. In a boiler tube, for Appearance . . . . . . . . . . White free flowing granules.
instance, they cause overheating and eventual Solubility . . . . . . . . . . . Up to 25% by weight in water.
failure of the metal. Deposite often cause plugging in pH of 1% solution . . . . . . . . . . . . . . . . . . . . . . . . . 6.8
critical areas such as waterwalls, waterwall headers,
in blowdown lines, and in gauge glasses. The most
effective method for preventing scaling is to eliminate DOSAGE
scale-forming elements from the feed water, or to
transform them by some means in to an innocuous Sufficient BC-P should be used to maintain 20-30
form. BC-P provides unsurpassed control of boiler ppm phosphate in the boiler water. The amount to be
sludge. BC-P makes it possible to easily transport used depends on the hardness of boiler feed water,
iron with calcium and phosphate containing sludge cycles of concentration, and internal condition of the
for removal during blowdown. BC-P is a sample, in boiler.
expensive and effective boiler water treatment
compound, suitable for steam boiler water operating
2
2
at pressure up to 600 Lbs/in (42.3 Kgs./cm ) FEEDING

Dissolve BC-P in hot (up to 125°F) or cold soft water,
and feed intermittently to boiler feed water line or
PURPOSE with proper flushing to boiler drum. A 12% feed
solution strength is preferred. Mechanical agitation is
BC-P when added to boiler feed water in controlled
amount, will react with the scale forming salts to form recommended.
precipitate or sludge instead of scale, The special
polymeric sludge conditioner fluidizes the sludge to
disperse in soluble material and prevent the HANDLING

accumulation of sludge on internal surfaces where Keep dry to prevent caking. It can be kept for long
heat is transferred. The heating surfaces are kept period of time without losing effectiveness, if properly
free of adherent deposits and accumulated sludge is stored.
easily removed by blowdown. BC-P is effective in
plant using raw, chemically softened or ion exchange
pretreated make up water. PACKAGING

BC-P is available in steel drums with polyethylene
ADVANTAGES inner bags containing 25 Kgs. and 180 Kgs. net
weight.
1. Form nonadherent sludge
2. Precipitate metal oxides to make them
nonadherent.
3. Easily dissolve into feed water.
4. Heat stable sludge conditioner will not “carbonize”

TECHNICAL SERVICE
WELLMAN CO.,LTD HAS A STAFF OF TECHNICAL SERVICE
ENGINEERS WHO WILL ASSIST AND TRAIN YOUR MEN ON THE PROPER
EVALUATION AND APPLICATION OF OUR CHEMICALS AND GIVE
RECOMMENDATION TO ENSURE SMOOTH OPERATION
THIS SERVICE IS GIVE FREE OF CHARGE