► Connect the turbopump with an approved backing pump (see chapter "Technical data").
► Install an isolation valve (NC) between the turbomolecular pump and the backing pump.
5.4 Connecting the water circuit
To limit corrosion
and
clogging of the water circuit
, we recommend using softened or non-aggres-
sive water with the required characteristics (see chapter "Water characteristics"). If the solid pollution
characteristics cannot be met, install a filter on the water inlet.
NOTICE
The water cooling circuit may be damaged if an unregulated mains supply is used
Using unregulated mains water
can lead to water circuit clogging due to limescale deposition. This
may necessitate complete cleaning and overhaul of the water cooling circuit.
Furthermore,
the presence of micro-organisms such as algae and biological substances such
as bacteria
can lead to problems in the cooling circuit.
► Connect the water cooling circuit to a regulated water supply.
► Take appropriate measures to prevent the growth of such micro-organisms.
The effect of cooling continuity on the process
If an interruption to the water circuit represents a serious risk for the process, it is advisable
to control the pump cooling with an external system capable of taking over if the water cir-
cuit fails.
WARNING
Risk of injury in case of contact with pressurized water
The product uses pressurized water as a cooling fluid. Non-compliant installations or installations not
done to professional standards may endanger the user’s life.
► Install a manual valve on the circuit at a distance of 3 m from the product, so that the water sup-
ply can be locked out.
► Observe the recommended pressure and pressure differences.
► Always lock out and disconnect the water circuit before working on the product.
► When carrying out maintenance, secure the installation properly by locating and locking out the
pressurized water circuit to prevent it from being re-engaged by accident (LO/TO Lock Out/Tag
Out procedure).
► Regularly check the condition of the pipework and supply circuit connections.
5.4.1 Procedure for assembly connectors
Threaded connector
Threaded connections bonding and tightening procedure
1. Use 1/8 NPT connectors (to be supplied by the customer).
2. Bond the connections using oleo-waterproof glue or put PTFE sealing tape on the threads.
3. Tighten the connection
while keeping the baseplate on the pump side
.
Installation
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