Ragazzini RC2-Mxl, Инструкция по эксплуатации

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INSTRUCTIONS FOR USE
22
LM05EN002
The electrical panel must be fitted for the control of electrical components.
If the control panel is remote, install a start pushbutton and an emergency stop pushbutton near the pump.
No means shall be provided to disable said controls from the electrical panel to be used for maintenance
purposes.
HAZARD : the machine, if not supplied in the configuration with electrical panel, must be
equipped with an emergency stop button by the customer.
Install a power supply disconnecting device into the fixed wiring. This device must be padloackable in open
(disconnected) position.
ELECTROCUTION HAZARD: During maintenance work on the pump or for interventions on
electrical components, the machine must be stopped and disconnected from the mains.
F.6 CONNECTION WITH PRODUCT RECEIVING SYSTEM
SUCTION : the pump must be located as close as possible to the source of the fluid, so as to allow the use
of a suction pipe of minimum length and as straight as possible. Avoid sharp turns.
The suction pipe must be perfectly airtight and made of a suitable material, so as not to crush
following internal depression. The minimum diameter of the piping must be equal to the
nominal diameter of the pump; remember that with viscous fluids it is necessary to use larger
diameters.
The pump is self-priming so it does not need a foot valve.
DELIVERY
: to reduce the absorbed power, use pipes as short and as straight as possible. Avoid sharp
turns. The diameter will be equal to the nominal diameter of the pump, except for precise calculations on
the pressure drops. With viscous fluids larger diameter tubes are required.
Connect the fixed piping to the pump with a section of flexible hose to facilitate maintenance
and avoid loads on the pump. Secure the piping firmly.
The pump flow is slightly pulsating and the pulsations increase as the number of revolutions and the
pressure increase.
Adapt the brackets to the system to prevent pulsations from causing damage to the pipes or disturbances
to downstream services.