G 03889 - Edition 04 - August 12
1/2
B 30
Connection to the cooling circuit
Water characteritics
In order to limit corrosion and motor cooling circuit clogging
,
it is recommended to use cooling water with the following
characteristics:
Treated soft water or non-corrosive industrial water
pH between 7.5 and 11
Hardness < 7 milli-equivalent/l
= 350 mg/l of CaCO
3
(calcium carbonate)
= 35 °f (French degree)
Resistivity
:
1,500 .cm < R < 20,000 .cm
Particles maximum size: 0.2 mm
Solid pollution < 100 mg/dm
3
Temperature from 10 ° to 25 °C
Pressure range between
2 - 6 · 10
3
hPa (29 to 87 psi) (relative pressure)
Water flow: see
A 40
If the ”solid particle size“ and ”solid pollution” water characteristics
values can not be reached, install a filter on the cooling connection.
Adaptator NPT/BSPP
1/4 NPT
1/4 BSPP
1/4 NPT
1/4 BSPP
OUT
IN
Water cooling quick
connection
Separately packaged
The use of uncontrolled city water can lead to water circuit clogging
due to limestone deposition, which may necessitate in the worst case a
complete cleaning and overhaul of the cooling circuit.
The presence of micro-organisms like aquatic weed and micro-biological
substances like bacteria can lead to cooling problem in the pump.
Appropriate water treatment system need to be use to prevent such
growth of micro-organisms.
Install the two quick couplings, packaged separately, on the self-
sealing quick connectors.
Connect the water pipes to the quick coupling connectors.
- Water inlet marked ”
IN
” (1/4 inch* NPT quick female connector)
- Water outlet marked ”
OUT
” (1/4 inch* NPT quick male connector)
*or 3/8 inch depending on the pump configuration. (See
F 10
)
adixen Vacuum Products - A3H Series Operating instructions
