27
26
Adipic Acid
Alcohol Amyl
Alcohol, Diacetone
Alcohol, Isopropyl
Alcohol, Methyl
Aluminium, Ammonium Sul-
fate
Aluminium Chloride
Aluminium Sulfate
Alums
Ammonium Carbonate
Ammonium Chloride
Ammonium Fluoride
Ammonium Hydroxide
Ammonium Nitrate
Ammonium Phosphate
Ammonium Sulfate
Aqua Ammonia
Arsenic Acid
Barium Carbonate
Barium Chloride
Barium Hydroxide
Barium Sulfate
Beer
Beet Sugar Liquors
Bismuth Carbonate
Back Liquor
Bleach
Borax
Boric Acid
Bromic Acid
Butyric Acid
Calcium Bisulfite
Calcium Carbonate
Calcium Chlorate
Calcium Chloride
Calcium Hydroxide
Calcium
Hypochlorite
Calcium Nitrate
Calcium Sulfate
Carbonic Acid
Castor Oil
Caustic Soda
Chloral Hydrate
Chromic Acid 50%
Citric Acid
Copper Chloride
Copper Cyanide
Copper Nitrate
Copper Sulfate
Corn Oil
Cottonseed Oil
Cresylic Acid
Crude Oil
Dextrose
Detergents (general)
Diesel Fuel
Dictyl Phthalate
Disodium Phosphate
Ethanol (1-95%)
Ethylene Dichloride
Ethylene Glycol
Fatty Acids
Ferric Chloride
Ferric Nitrate
Ferric Sulfate
Ferrous Chloride
Ferrous Sulfate
Fluoboric Acid
Fluosilicic Acid
Formaldehyde
Fruit Juice Pulp
Fuel Oil
Gallic Acid
Gasoline, Refined
Glucose
Glycerine or Glycerol
Glycolic Acid 30%
Hexane
Hydrazine
Hydrobromic Acid 20%
Hydrochloric Acid (Con-
centrated)
Partial Listing of Chemicals that can be
used with BlackStone Pumps
(Rated for 45°C. For higher temperatures
consult your dealer or nearest Hanna Ser-
vice Center)
CHEMICAL COMPATIBILITY GUIDE
Cleaning the Pumphead
The pumphead should be cleaned at regular
intervals and at least once a year. Remove
the deposits that form in the cavities with a
solution that is neutral to the chemical the
pump has been dosing. Inspect the head
for any cracks or worn areas.
Replace if necessary with parts from the
pumphead spare part HI 721106 (for BL7,
BL10, BL15 and BL20) or HI 721107 (for
BL1.5, BL3 and BL5).
SCHEDULED MAINTENANCE
After 50 hours
Tight the pumphead screws with a torque
force of 2.5 Nm (22" lbf).
After 12 months
It is recommended to replace HI 721102, HI
721103 (suction and discharge valves as-
semblies) as well as the O-rings. The LDPE
hose can also deteriorate over time and, for
safety reasons, should also be changed
with HI 720032.
After 24 months
It is recommended to replace HI 721102, HI
721103, HI 720032 and HI 721106 (for BL7,
BL10, BL15 and BL20) or HI 721107 (for
BL1.5, BL3 and BL5).
