7
3
Introduction
3.1
General
Submersible sewage pumps of the type DRV /
DRK / DRS / DRSK
Submersible sewage pumps of the type DRV / DRK /
DRS / DRSK are produced by DP-Pumps.
3.2
Intended use
The submersible pumps of the DRV / DRK / DRS /
DRSK series are suitable for pumping the substances
given below within the specified working range (see
“Working range").
•
Water with faeces.
•
Water with solid or fibrous constituents.
•
Sludge or thicker liquids.
•
Clean or lightly contaminated wastewater.
•
Rainwater.
Any other or further use of the pump is not in
conformity with its intended use. DP-Pumps does not
accept any liability for any damage or injury that
results from this. The pump is produced in
accordance with the current standards and
guidelines. Use the pump only in a perfect technical
state, in conformance with the intended use
described below.
The
Intended use
as laid down in EN 12100-1 is the
use for which the technical product is intended
according to the specifications of the manufacturer.
The use of the product has been described in the
sales brochure and in the user manual. Always
observe the instructions given in the user manual.
When in doubt the product must be used as becomes
evident from its construction, version and function.
3.3
Working range
The working range of the submersible sewage pumps
can be summarised as follows:
Table 1: Specification of the working range
Table 2: Specific applications
Submersible sew-
age pump type
DRV
DRK
DRS
DRSK
Liquid temperature
[°C]
•
maximum
40
40
40
55
•
minimum
1
1
1
1
Free passage [mm] 35 - 135 35 - 135 none
65 - 76
frequency [Hz]
30 - 50
30 - 50
30 - 50 30 -50
Type
Application area
DRV
Pumping heavily contaminated liq-
uids with solid and long staple con-
stituents such as untreated sewage
DRK
Pumping lightly contaminated liq-
uids with solid and long staple con-
stituents
DRS
Shredding and pumping liquids
with faeces and household waste-
water.
DRSK
Pumping heavily contaminated liq-
uids with solid and long staple con-
stituents such as untreated sewage
