List of chemical resistance | Operation & Maintenance Instructions Peristaltic Pump |
9
5. List of chemical resistance
The following list shows the hose pump’s chemical resistance against usual chemicals in
the water preparation.
Medium
chem.
formula
concentration.
Performance
Aluminiumsalt
all
+
Calcium hypochlorite
CaCl(ClO)
20%
+
Ferrous salts
all
+
Common salt
NaCl
20%
+
Sodium hyperchlorite
NaClO
12.5%
+
Caustic soda
NaOH
40%
+
Hydrochloric acid
HCl
10%
+
37%
0
Sulphuric acid
H2SO4
30%
+
95%
-
Hydrogen peroxide
H2O2
30%
+
90%
0
(+ / 0 / -
none / minor/ stronger chemical attack)
The chemical resistance was determined at 20°C.
Please ask the supplier with regard to information on other chemicals or investigate them
through preliminary tests. For this purpose a section of hose is weighed and measured,
placed in the chemical for at least 24 hours, subsequently washed well and dried. The gain
in weight, change in size, moisture expansion and other changes such as brittleness and
discolouring are evaluated. If there is no clear change, then the pump hose can be used
for this chemical.
