5
Holding tank
The holding tank (d) is filled automatic from dosing
unit (c). The level is controlled by the in-tank
installed float valve (picture 7).
The holding tank stores a mix of water and
Hydrochloric acid until it is used to lower the pH
of the feed water going to the system.
Nothing is added by the operator at this point and the screw lid
is only use to inspect and measure the content. The level of the
tank is maintained by the float valve installed inside the tank.
The float valve can be locked in the closed position and has a build in check valve.
The fill level is pre-adjusted from factory, but can be changed, if needed, by
adjusting the yellow floats position.
Pressure reduction valve
The pressure reduction valve (e), regulates the water pressure going to the
system. The (E
-
1200/E
-
240) system has a maximum allowed pressure of
50 psi. This is to protect the internal parts of the system.
The pressure reduction valve (e) is pre-adjusted from factory to 45 psi, so
no action is needed from the customer, side.
Flow control valve
The flow control valve (f) can adjust the flow though the
system. The flow can be
adjusted to anything within the system flow range. For the E
-
1200 that is 4 to 24
liter/minute. E
-
240 is 1 to 5 liter/min.
Level / pump control
Tank level / pump control (3) is an option that can be added when ordering a
system. The programmable LED display will show tank level as a percentage,
and control start/stop of the system.
The programmable LED display will also protect distribution pump in some
specific operational situations if this option is added.
Picture 6
Holding tank
Picture 7 Pressure regulator
Picture 8
Flow control valve
Picture 9 Level / pump
control unit
Picture 6.a Float valve
Picture 6.b Float valve
in-side tank
