12
Installation
5.4
Connecting the cooling water
BA series pumps are fitted with a cooling water regulator 41 as standard equipment. The
regulator's job is to keep the pump at its optimum operating temperature.
Requirements for the cooling water
The cooling water must be filtered in all cases. This keeps dirt deposits and organic sus-
pended particles that could accelerate pitting out of the cooling circuit. Complying with
the following requirements for cooling water will prevent corrosion damage:
Connecting cooling
water
The connection must be made so that the flow can be visually checked. The best method
is the free outflow of cooling water via a funnel. If this is not possible because there is no
height difference, a flow indicator must be integrated into the line. Standard flow monitors
or flow indicators may be used.
Screw in cooling water drain screw 62; pay attention to the O-ring.
– Locking screw included in the scope of delivery.
Connecting the cooling water pipe at the inlet (cooling water controller 41)
(G 1/2").
Connecting the cooling water pipe at cooling water outlet 41.1 (G 1/2").
Mounting the cooling
water unit (optional)
The cooling water connection unit includes the following components and is mounted as
shown in Fig. 3:
– Shut-off valve
– Dirt trap
– Pressure monitor and
– Fastening clip
Installing pressure
monitor (option)
The pressure monitor can be used as an effective means of monitoring the pump against
cooling water failure.
WARNING
Emission of toxic substances from the exhaust!
Danger of poisoning from emitted gases or vapours, which can be detrimental to health
and/or can pollute the environment, depending on the particular application.
Comply with the applicable regulations when working with toxic substances.
Only officially approved filter systems may be used to separate and remove these
substances.
Requirements for the cooling water
Water filtered, mechanically pure, optically clear, no turbidity, no sediments, chem-
ically neutral
Min. oxygen content
4 mg/kg
Max. chloride content
100 mg/kg
Max. carbonate hardness for the water temperatures
15 ... 25 °C
30 ... 40 °C
10 ° dH
6° dH
Max. potassium permanganate usage
pH value
10 mg/kg
7 ... 9
Aggressive carbon dioxide and ammonia must not be detectable
Max. electrical conductivity
500
μ
S/cm
Max. impurity particle size
25
μ
m
Permitted inlet overpressure range; if the pressure is higher a pressure reducer
valve must be integrated
2000 ... 10000 hPa
Permitted cooling water temperature range
10 ... 30°C
