Lowara GEMK Serie Instrucciones Para La Instalación Y El Uso página 80

3.6 Hydraulic pipes and connections
The hydraulic pipes connected to the module must be of a suitable size and, if possible, of the same diameter as the inlet or
outlet lines of the connector kit. The pipes of the system must be properly supported to ensure that the diesel pump module is
not subjected to undue stress.
- Any loads on the diesel pump, such as mounted on the liquid end must always be supported and
ATTENTION
equipped with anti-vibration couplings. Use pipe supports that do not interfere in any way with the
interfaces of the diesel pump.
- When installing the set, make sure that the suction and delivery pipes do not exert any stress on the
diesel pump set, and that they are properly aligned. Install the supplied rubber expansion joints
correctly, between the pipes and the diesel pump set.
- Mechanical stresses on the suction or delivery sides of the diesel pump can cause damage or generate
dangerous vibrations during operation.
- Mechanical stresses on the parts of the diesel pump (hydraulic section, etc.) due to incorrect
installation can cause damage.
- Make sure that air cannot enter the inlet line and create the "siphon" effect: this can cause the pumps
to deprime!
In the case of specific applications with heat exchanger, you are recommended, in accordance with standard EN12845 10.9.3b,
to leave the exhaust pipe of the exchanger open (as an outlet) in order to prevent counterpressure during discharge.
The weight of the pipes and tanks increases when they are filled with water. Before starting the set, make sure you have closed
and tightened all the unused couplings.
The suction pipe of each pump must have the least possible number of elbows. Any bends must be wide and positioned
horizontally or with a steady upward gradient towards the pump to prevent the formation of air pockets in the pipe.
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