Intended Use - Comet Spa ETW Manual De Instrucciones

This valve, suitably set by the Manufacturer, allows regulating the operating pressure and permits the
pumped fluid to flow back towards the bypass duct, thus preventing the accumulation of dangerous
pressures when the delivery line is closed or when attempts are made to set pressure values above
the maximum ones allowed.
Pressure relief valve
Available as an optional accessory depending on the pump model.
This valve is suitably calibrated by the Manufacturer. It releases any overpressures in case of a fault
occurring in the pressure adjustment system
WARNING
• The pressure unloader/regulation valve and the pressure relief valve are either calibrated by the pump
Manufacturer or by the Manufacturer of the machine integrating the pump. Never try and adjust the
pressure unloader/regulation valve to alter its setting: only adjust this by means of the relevant
knob. Never change the calibration of the pressure relief valve.
WARNING
• The pump must not be run by itself. It is only meant to be integrated in a machine.
• The pump must only be integrated in machines used for the following purposes:
- pumping of water at high pressure in washing machines (high pressure cleaners, bin washers, road
sweepers, etc.);
- pumping water for non-edible use.
• The pump must not be integrated in machines for pumping:
- unfiltered water or with impurities;
- detergents, paints and chemical substances, both pure and in aqueous solution;
- seawater or water with high salt concentration;
- fuels and lubricants of all kinds and types;
- inflammable liquids or liquefied gases;
- edible liquids;
- solvents and thinners of all kinds and types;
- water with temperatures and pressures outside the range designed for the specific series of
pumps (→MS);
- water taken from tanks with negative head;
- liquids containing granules or solid parts in suspension.
• The pump must not be integrated in machines designed to wash: people, animals, energized electrical
apparatus, delicate objects, the pump itself or the machine in which it is integrated.
• The pump is not suitable for being integrated in machines designed to operate in environments with
special conditions such as, for example, corrosive or explosive atmospheres.
• For integration in machines designed to operate on board vehicles, ships or planes, contact the
Manufacturer's Technical After-Sales Service, inasmuch as additional requirements may be necessary.
All other uses are to be deemed incorrect.
The Manufacturer disclaims all liability for any damage deriving from incorrect or erroneous
uses.
WARNING
• The pump cannot be operated unless the machine in which it is integrated conforms to the safety
requirements laid down by European directives. Such conformity is indicated by
16

INTENDED USE

PRELIMINARY ACTIVITIES
markings