Cable type
Cable size
Minimum bend-
ing radius
[cm]
Power cables
4 x 70 mm
2
27
4 x 95 mm
2
31
4 x 120 mm
2
34
4 x 150 mm
2
38
4 x 185 mm
2
42
Control cable
10 x 1.5 mm
2
12
18 x 1.5 mm
2
25
8.7 Spare parts
Damaged motor parts must always be replaced by
new and approved ones.
8.8 Contaminated pumps and service
CAUTION
Biological hazard
Minor or moderate personal injury
‐
Flush the pump thoroughly with clean
water and rinse the pump parts after
dismantling.
If a pump is used for a toxic or contagious liquid, it is
classified as contaminated.
8.8.1 Sending the pump to service
Before returning the product for service, contact
Grundfos with details about the pumped liquid.
Otherwise, Grundfos can deny servicing the product.
Any application for service must include details about
the pumped liquid.
37
English (GB)
Summary of Contents for ST-55-520
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