Nederman KSA 70 Manual página 9

English (GB)
Safety
Mount the KSA 70 on a pole or strong
wall allowing for its own weight plus the
weight of the separated material. Prior to
emptying the weight can increase to 400
kg in extreme cases.
Main components
These are shown in figure 1a. (For detailed
information with article numbers, see the
spare parts list, document no. MX21-001).
The main measurements are shown in figure
1b.
1 Top
2 Wear insert
3 Housing
4 Bracket for wall or pole
5 Splash guard (optional)
6 Bottom lid with balance weight
Description
KSA 70 is a pre-separator for heavy particles,
e.g. metal chips, with or without cutting fluid.
KSA 70 separates heavy and abrasive par-
ticles that can otherwise cause unnecessary
wear in the pipework or can cause blocka-
ges. The amount of fluids can be large wit-
hout creating problems, a splash guard
(optional) is recommended to prevent spla-
shing during emptying.
A common use for KSA 70 is vacuum
systems used for the extraction of cast iron
chips, graphite and fluids. This can create a
thick coating within the pipework if there is
not a pre-separator near each suction point.
In such an application, the arrangement will
appear as in figure 2. Only one suction point
will lead to a KSA 70 via a short length of
pipework. Reinforced bends must be used
Pre-separator
KSA 70
The bottom lid is closed by the vacuum
in the pre separator, this occurs with sig-
nificant force and can cause injuries to
fingers. Do not touch the lid during nor-
mal operation and turn off the vacuum
before carrying out inspection or service
work.
for some applications, it can also be advan-
tageous to use durable rubber hose for con-
necting to the KSA 70 inlet. The rubber hose
must be connected to the KSA 70 with a
special adapter in order to prevent possible
clogging.
If a pipework is installed upstream of the
KSA 70 and branches out to a number of
suction points, there is a risk that problems
will arise e.g. wearing, clogging and poor
suction within the system. Pipe systems
upstream of the KSA 70 defeat the purpose
of using pre-separators. If the material is
slightly abrasive and does not have the ten-
dency to clump together, then a short pipe-
work can be installed upstream of the KSA
70.
KSA 70 is not suitable for light or fine-grai-
ned material or for fluffy materials, such
materials can pass through the separator or
can lead to blockages.
There must be a vacuum valve between the
outlet of the KSA 70 and the pipework, see
figures 6-7. If this is not the case, the KSA
70 cannot be emptied. When the valve clo-
ses the vacuum inside the housing disap-
pears, the weight of the stored material on
the balanced lid will allow the lid to open,
thus emptying the KSA 70. Suitable vacuum
valves, and operational control of these, are
shown further on in this manual.
1(2) GB