Ecolab Elados EMP II - E10 Notice Technique page 39

For metering in pipelines with under pressure, a pressure control valve
must be built into the metering pipe.
NOTE
To prevent the running out of the metering medium when the pump is
stopped, we also recommend the fitting of a solenoid valve which is
approved for use with the pump.
Pos. Description
1 Injector valve / Metering valve
2 External release
3 Solenoid valve
4 Pressure control valve
The metering point should not be positioned below the discharge
container as this arrangement creates a risk of the discharge
container being siphoned empty.
Pos. Description
1 Overflow valve
2 Injector valve / Metering valve
The suction pipes must be kept as short as possible.
Long and twisted suction pipes may lead to air build-up in the
system.
The max. suction height is 2 m and the max. flow velocity is 0.3 m/s!
(see also chapter
Always lay the suction pipe so that it ascends to the suction valve of
the metering pump.
417101339_EMP_II_E10
A pressure control valve or a metering valve is not an
absolutely hermetically sealing shutoff device.
11.3 "Technical Specifications")
39
Fig. 6.3
Fig. 6.4
Fig. 6.5
Fig. 6.6
Rev. 10-01.19