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INDUSTRIAL PUMPS
www.
debem.com
Chapter 3 - Warnings and Requirements
Translation of Original Instructions - BOXER rev.
2021
3.1 SAFETY RULES
The Original Instructions must always be available to operators. Dangerous or hazardous practices or
practice not complying with the Safety Rules and with the recommendations contained herein, may cause
material damage, serious injuries and in extreme cases even death for which the Manufacturer cannot
be held responsible.
3.1.1
All pumps undergo functional tests and are tested with water at 20°C before being shipped to the Customer, there-
fore, tap water residues can be found inside them.
CAUTION
:
danger of chemical reactions to water
Before installing the pump for use with liquids that react with tap water, it is necessary to open the product
circuit and dry all internal surfaces.
3.1.2
The personnel in charge of installing, inspecting and maintaining the pump must have suitable technical prepa-
ration and knowledge of the product to be pumped and also have specialist knowledge on potentially
explosive atmosphere and related risk for uses in ATEX areas.
CAUTION
These instructions are essential for the pumps’ compliance to the requirements of the 2014/34/EU and must
therefore be: available, known, understood and used by all Operators.
3.1.3
Use of the pumps in a manner that does not comply with the instructions indicated in the Manufacturer’s use and
maintenance manual will cancel all the requirements for safety and protection against of explosions.
CAUTION
The maximum allowed temperature for process fluids (in zone 1 and zone 21) is equal to 65°C or 80°C
depending on the construction materials of the pump;
if exceeded, compliance with the affixed ATEX
and IECEX marking is not ensured.
3.1.4
The air supply to the pump must always entail the installation of a suitable on-off valve (Emergency), 3-way valve
and check valve and the pressure
must never be less than 2 bar or greater than 8 bar. The pneumatic
motor of the BOXER pumps is self-lubricated (no further lubrication is required); feed the pump with dry
and NON-lubricated filtered air. It is FORBIDDEN to feed the pump with lubricated, unfiltered and/or
undried air.
CAUTION
: danger of fluid entering the compressed air circuit and being discharged into the environ-
ment.
Installing the pump without on-off, 3-way or check valves on the air supply piping to prevent the pumped liquid
from entering the pneumatic circuit if the diaphragms are broken is forbidden.
Even in battery installations, the
check valve must be installed on each pump.
3.1.5
The air of the pump’s pneumatic circuit must always be discharged in a free, non-dusty atmosphere and free of
saturated vapours that can damage the internal circuit.
CAUTION:
danger of damage to the internal pneumatic circuit.
For installations with the pump immersed or operation in environments with a heavy atmosphere (dusts,
vapours or saturated vapours), it is necessary to install a pipe and fittings (of suitable materials) to bring
the air discharge point outside the environment/process liquid.
3.1.6
For pump installations with high delivery heads, very dense fluids, with high specific weight and/or with strong
back-pressures, the pneumatic circuit discharges may freeze.
CAUTION
:
danger of air discharge freezing and loss of efficiency and/or pump stop.
Provide for the installation of a glycol adder on the air supply line, upstream of the pump.
3.1.7
Where the user presumes that the temperature limits set forth in this manual may be exceeded, a protective device
must be installed on the system to prevent the maximum allowed temperature from being reached.
CAUTION:
danger of loss of conformity with the affixed ATEX and IECEX marking.
It is forbidden to use the pump with temperatures higher than those allowed and specified in
the manual;
if exceeded, conformity with the affixed marking is not guaranteed.
