Installation Example - ECOLAB Elados EMP III Typ E00 Betriebsanleitung

Installation examples - Hydraulic installation
For media with a tendency towards sedimentation, the bottom admisson valve
or foot valve of the suction line / suction lance must be fitted above the
anticipated layer of sludge.
Definition of term: Empty lifters
Empty lifters are always referred to when the maximum liquid level (in this case
the withdrawal container) is higher than the lowest point of the dosing line. In
this case, the liquid runs out of the dosing line without pumping power solely
through the so-called "hydrostatic pressure compensation".
The installation examples and applications provided here are of a functional
nature. They give an overview of installation types which are correct or to be
avoided for the correct functioning of the pump.

Installation example 1

CAUTION!
The overflow line never be fed back into the suction line of the metering pump.
In place of a pressure valve and an overflow valve also a multifunction valve
(MFV) from our delivery program can be used.
Assembly, mounting and installation
The arrangement of the metering pump should preferably be made on
and/or over the metering container (Pos. A).
For easy venting of the metering pump with an applied metering
backpressure > 0.05 MPa (0.5 bar), an appropriate ball valve (pos. 4) can
be installed in the pressure pipe.
The venting pipe should be led back pressure-free into the container
(Pos. B).
Between the back-pressure in the injection point and the pressure at the
metering pump a positive difference of pressure must prevail of at least
0,1 MPa (1 bar).
If this is not the case, a pressure control valve (pos. 2) must be built into the
metering line (Pos. C).
In addition it recommends to install itself for the avoidance of inadmissibly
high pressures in the metering line an appropriate safety overflow valve
(pos. 3). The by-pass pipe of this valve should be led back pressure-free
into the container.
29 417102233 Rev. 3-03.2019