Gianneschi 01GMV434G, Use And Maintenance Manual, Page: 7 / 34

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The flow is non-pulsating because the stator‘s chamber volume is always constant.
The pump will be considered therefore a positive displacement type with the following
benefits:
- Self-priming even no liquid contained in the pump chamber (some moisture must be present).
- Very low damage when handling sensitive products.
- Capacity is directly proportional to the pump speed.
- Will handle viscous and abrasive materials.
- No pulsation.
Also, due to the Gianneschi pump system:
- There is no major torque increase when high pressures are achieved.
- Low noise and vibrations.
- Self-aligning of the rotor even under pressure.
- Compact style construction.
3 Unpacking, handling and storage
3.1 Unpacking
All Gianneschi pumps are sent inside box, pallet or cage in order to avoid any problems,
We consider this procedure important and we suggest you proceed as follows:
- Inspect the packing in case any damage has happened during transit.
- With care, remove the packing from the pump.
- Having a look at the pump and check any visible sign of damage.
- Also check that the drive also in an undamaged condition.
3.2 Handling
All pumps weights, allow you to move the pump to the final destination without any problem.
Take care when the pump is fitted with a driver, we suggest you use safe lifting practises.
3.3 Storage
When the pump will not be installed immediately, it has to be re-packed and placed in a
suitable storage location.
Points to be followed are:
- Place the pump in a covered, dry location which is free from vibrations.
- If the pump is placed in a dusty atmosphere, a moisture repellent cover is necessary until the
pump is installed.
- Move the pump weekly by rotating the drive train to prevent seizure and bearings damage.
If the pump is to be stored for excessive time (> 6 months), remove the stator and protect it
- internally with adequate lubrication.
- Ask to our technical department which lubrication type has to be used.
- Remove also drain plug (located on the suction chamber) to avoid vapour forming.