4 Description
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Evamatic-Box N
Evamatic-Box N 500 l
Fig. 2:
Illustration of the waste water pump station, 500 l
1 Collecting tank
7 Ball check valves
2 Horizontal nozzles for inlet or
venting
8 Floor mount
3 Vertical nozzles for inlet or venting
9 Float switch pump 1 ON and pump 1
and 2 OFF
4 Drainage nozzle
10 Float switch pump 2 ON
5 Discharge lines
11 Float switch for alarm
6 Submersible motor pumps
Design
The pump station consists of a stable collecting tank (1) with two integrated
submersible motor pumps (6), a horizontal (2) or vertical (3) inlet nozzle, a horizontal
(2) or vertical (3) vent nozzle (12 options available for selection) as well as two
discharge lines (5).
Function
The fluid handled flows into the pump station through the inlet nozzle (2) or (3) and
is collected in a gas-, odour- and water-tight tank (1) made of polyethylene. As soon
as the float switch (9) detects a defined fill level, the first submersible motor pump
(6) is started up automatically. The fluid handled is pumped off through the
discharge line to a level above the flood level and into the public sewer. If the float
switch (10) detects a rising fill level while one pump is in operation, the second
submersible motor pump (6) is started up automatically. As soon as the float switch
(9) detects a defined minimum fill level, both pumps (6) are stopped automatically.
The alarm float switch (11) needs to be connected to an alarm switchgear for acoustic
or visual alarm (optional alarm switchgear can be supplied by KSB).