Piusi SQUALO35 Instalación Uso Y Mantenimiento página 31

(translated from italian)
11.1 POSITIONING, CONFIGURATIONS AND ACCESSORIES
ATTENTION
ATTENTION
11.2 NOTES ON DELIVERY LINES
EFFECTS ON
FLOW RATE
HOW TO
REDUCE
EFFECTS ON
FLOW RATE
CHARACTER-
ISTICS OF
DELIVERY
PIPES
This manual is the property of PIUSI S.p.A. Any reproduction, even partial, is forbidden.
The tank in which the pump is being installed must be vented in accordance
with manufacturer's installation instructions. Follow the tank manufactur-
er's tank installation instructions.
- Make sure that the tank is free from sand, dirt, and other debris.
- Cable extension junctions should only be made with a safe and water-
proof system.
As a general rule of electrical safety it is always recommended to power
the device by protecting the line with:
- Magnetothermic switch / disconnector with current flow rate suitable for
the electric line;
- 30 mA differential residual current device.
The electrical connection must have a circuit breaker (gfci).
- The pump cannot be run dry
During installation and periodically, provide for verification of the ground-
ing circuit in compliance with current regulations.
In order to prevent deformations and breakages, make sure that the pipes
do not exert excessive forces on the delivery port of the pump.
It is the responsibility of the installer to provide the necessary line acces-
sories to ensure the correct and safe operation of the pump. The accesso-
ries that are not suitable to be used with the previously indicated material
could damage the pump and/or cause injury to persons, as well as causing
pollution.
To maximise performance and prevent damage that could affect pump op-
eration, always demand original accessories.
Length and diameter of pipe, flow rate of dispensed liquid, accessories fitted,
can create back pressures above those allowed.
In this case, the pump mechanical control (pressure regulator) will trip to re-
duce the flow rate.
To avoid these problems, system flow resistances must be reduced using
shorter and/or larger diameter pipes, as well as line accessories with low
resistances (e.g., automatic nozzle for higher flow rates).
A product filter must be installed between the tank / piping and the dispens-
ing point. The filter should be sized to insure that AUS32 (DEF, AdBlue®) sup-
plied to the dispenser nozzle meets the requirements of ISO 22241 and does
not pass particulates that may clog the injector nozzles in the vehicle.
The delivery pipe must have the following technical characteristics:
- recommended minimum nominal diameter: 3/4" (DN20)
Only use hose with a cylindrical male thread. Do not use conical threads
to avoid damage to the connections.
SUBMERSIBLE PUMP
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