English (GB)
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10. Technical data
10.1 Operating conditions
10.1.1 Operating mode
The pumps are designed for continuous operation,
S1, or intermittent operation, S3.
Operating mode S3 means that within 10 minutes the
pump must be in operation for 4 minutes and
stopped for 6 minutes.
10.1.2 Maximum starts per hour
10.1.3 pH value
Pumps in permanent installations can cope with pH
values ranging from 4 to 10.
10.1.4 Liquid temperature
0 to 40 °C
10.1.5 Ambient temperature (if the pump is not
fully submerged)
0 to 40 °C
10.1.6 Density of pumped liquid
Maximum 1000 kg/m
3
In the case of higher densities, contact Grundfos.
10.1.7 Maximum operating pressure
5.7 bar
10.1.8 Installation depth
DWK: Maximum 25 m below liquid level
10.1.9 Max. altitude above sea level
2000 m
10.2 Dimensions and weights
10.2.1 Dimensions
in the appendix.
11. Disposing of the product
This product or parts of it must be disposed of in an
environmentally sound way:
1. Use the public or private waste collection service.
2. If this is not possible, contact the nearest
Grundfos company or service workshop.
The crossed-out wheelie bin symbol on
a product means that it must be
disposed of separately from household
waste. When a product marked with this
symbol reaches its end of life, take it to a
collection point designated by the local
waste disposal authorities. The separate collection
and recycling of such products will help protect the
environment and human health.
See also end-of-life information at
www.grundfos.com/product-recycling.
DWK.O: 30 starts per hour
DWK.E: 18 starts per hour
DWK.H: 15 starts per hour
