18
ELRO
®
Pumps for hazardous materials GUP 3-1,5 and GP 20/10Ex
4
3
5
1
2
6
7
8
10
11
9
If a tank truck is available to transport the
hazardous material, the transport drum is
used as a dirt separator. This enables to
take up even the last residues of the hazar-
dous material. Foreign matter is separated in
the drum and thereby kept away from pump
and tank. The installation must be made as
shown in Fig. 10.
The peristaltic pump must not
be operated against closed
shut-off valves.
4.2
Control elements
The pump is operated via three switches
on top of the pump.
Fig. 10 Transport drum as dirt separator
1
Air connection closed with blanking cap
7
Suction port
2
Transport drum
8
Pressure port
3
Hazardous material
9
Pressure hose 2"
4
Suction hose 2"
10
Pump for hazardous material
5
Suction port
11
Tank truck
6
Suction port
4.1.2 Transport drum as dirt separator
Fig. 11
1 Off-switch
2 Speed range I - On-switch
3 Speed range II - On-switch
