Westfalia OSD 6-91-067, Instruction Manual

Page: 54 / 206

Westfalia Separator
54
Mineraloil Systems GmbH
2058-9001-101 / 0506
3.1 Technical information
Take note of the following sections:
3.1.1 Notes on separation
The separator is used for clarification and separation in fuel and lube oil treat-
ment plants.
The best separation effect is obtained with low viscosity of the product to be
separated.
The separator operates economically with the separating temperatures and ca-
pacities specified by us.
In the case of deviating products
– see sales documents or
– inquire at the factory.
Procedure:
•
Select the desired operating mode on the control unit.
•
Set the separating time on the control unit.
•
Start the separator (see 3.2).
3.1.2 General information on bowl ejection
The bowl is ejected automatically at full speed during the program sequence.
The ejection time is determined by the preset separating time.
For determining the separating time see 3.5.
Sequence of an ejection (example)
1. Separating time has elapsed.
2. Product feed valve is closed.
3. Displacement water displaces the fuel oil to the clean oil side.
4. Operating water opens and closes the bowl hydraulically at full bowl
speed.
5. Waiting time for speed recovery.
6. Filling water supply
7. Product valve is opened.
8. Separating time resumes.
Displacement
•
When separating, the loss of feed liquid unavoidable during ejection can be
reduced to a minimum by displacing the feed liquid with water before sludge
ejection takes place (especially important when processing valuable feed liq-
uid).
•
The duration of displacement water supply is given in the timer overview (see
control unit manual).