Figure 1: .
Fig. 1 illustrates that the amount of insolubles removed will decrease with ris-
ing flow rate (Q).
It can be seen that:
▪ At low flow rate (Q), only a small portion of the lubricating oil is passing
the centrifuge/hour, but is being cleaned effectively.
▪ At high flow rate (Q), a large quantity of lubricating oil is passing the cen-
trifuge/hour, but the cleaning is less effective.
Thus, by correctly adjusting the flow rate, an optimal equilibrium cleaning
level can be obtained (Fig. 2).
Figure 2: .
This minimum contamination level is obtained by employing a suitable flow
rate that is only a fraction of the stated maximum capacity of the centrifuge
(
see the centrifuge manual
).
The most important factor is the particle size (risk of scratching and wear of
the bearing journals). In general the optimum centrifuge flow rate for a deter-
gent lubricating oil is about 25% of the maximum centrifuge capacity.
Operation flow
In order to calculate the required operation flow through the separator unit,
MDT recommends to apply the following formula:
Description
Treatment and maintenance of lubricating oil
1643494-3.11
2016-02-26 - en
B 12 15 0
MAN Diesel & Turbo
4 (11)
L28/32S; L27/38S; L23/30S; L21/31S; L16/24S; L23/30DF; V28/32S-DF;
L28/32DF; V28/32H; V28/32S; L16/24; L21/31; L23/30H; L27/38;
L28/32H EN
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