34
ELRO
®
Pumps for hazardous materials GUP 3-1,5 and GP 20/10Ex
9.0 Appendix: Applicational recommendations
Rubber materials for pumping hoses
Designation
Properties
chemically
conditionally not resistant thermal use Recommendation
resistant resistant
1
The chemical resistances apply only for a product temperature of up to 20°C.
2
Conditionally resistant means: sufficient for pumping quantities of up to 40 m
3
.
Hypalon
(CSM)
Nitrile rubber
NBR only for
GP 20/10 Ex
Elastomer,
created by
polymerization
of chlorosulpho-
nated ethylene:
wear resistant,
electr. conductive,
resistant against
chemicals.
Mixed polymeri-
sate consisting
of butadiene and
acrylnitrile:
wear resistant,
oil resistant,
Acids and
alkaline
solutions,
alcohols, paints,
foaming agents,
hot water, steam
up to 120°C.
Mineral oil,
alcohol, gasoline,
kerosene, fuel oil,
gear oil, water up
to 100°C.
Gasoline,
benzene, fuel
oil, gear oil.
Solvents
Benzene, acids
and alkaline
solutions, ester
solvents.
- 20 to + 80°C
-10 to + 80°C
Fire brigade
handling of
hazardous ma-
terials
Oil fighting
