2.10.4 Operating limits
The minimum flows indicated in (⇨ Section 6.2.3.1 Page 32) refer to water and water-
like fluids handled. Longer operating periods with these fluids and at the flow rates
indicated will not cause an additional increase in the temperatures at the pump
surface. However, if the physical properties of the fluids handled are different from
water, it is essential to check whether an additional heat build-up may occur and if
the minimum flow rate must therefore be increased. The calculation formula in
(⇨ Section 6.2.3.1 Page 32) can be used to check whether additional heat build-up
may lead to a dangerous temperature increase at the pump surface.
2 Safety
Normblock
11 of 58
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