General Description Of The Atex Electropumps Of Dreno Pompe And Service Features; Design Methods; Special Conditions For Safe Use - dreno V2 Serie Manual De Uso Y Mantenimiento

1. General description of the electric pumps and
characteristics of use
The sturdy "DRENO POMPE" submersible electric pumps of the V2 - V4 - A2 - A4 - G - H series are widely
used both in craft and industrial applications, for the channelling of waste untreated water, revived slush,
putrid slush, water mixes, light and heavy sewage, sewage water. ATEX marked pumps can be used in areas
with risk of explosion, in accordance with the ATEX 2014/34/UE Directive.
Marking in compliance with Group II, category 2, gas protection (G), temperature class = T4
Pumped liquid temperature range: 0 ÷ 40°C
Maximum immersion depth: 20 m
Minimum liquid level: see chapters 6 and 7
PH of the pumped liquid: 6 ÷ 10 pH
Protection degree: IP 68
Liquid density: not exceeding < 1.1 kg/m
diameter as allowed by the passage through the impeller. See section 5 Technical specifications.
The maximum noise level of our pumps is ≤ 70 dB (A).
DRENO POMPE ONLY GUARANTEES THE OPERATIONS OF ITS ATEX PUMPS, IF
THE CONDITIONS OF USE COMPLY WITH THE INDICATIONS OF THE FOLLOWING
ATEX marked electric pumps may be used in environments at risk of explosion and fire, in accordance with
the ATEX specifications, indicated in the identification plate.
They have passed the measurements and the tests required by the Directives. These assessments are descri-
bed and certified in reports no. EPT 17 ATEX 2702 X, available at our Internet website: www.drenopompe.it
2. ATEX pumps, design and management methods
Protection systems and equipment intended for use in potentially explosive atmosphere are designed by
DRENO POMPE SRL following the principle of built-in explosion protection. Therefore, DRENO POMPE
SRL takes all the necessary measures, to avoid that protection systems or equipment produce or release
themselves explosive atmospheres, and to prevent ignition inside an explosive atmosphere, taking into ac-
count the nature of each potential ignition source, both electric and non electric. With this in mid, the most
advanced management methods are ensured during the design stage. These include the implementation of
internal procedures PQ.D.03, IQ.A.01, the use of CAD systems, and advanced simulators, as well as compli-
ance with all the current state of the art regulations, like for example EN 1127-1, EN 60079-0, EN 60079-1,
EN UNI 60079-14, EN 80079-36, EN 80079-37.

2.5 Special conditions for safe use

- The dettermination of the maximum surface temperature has been determined on operation within
" Zone A" (IEC 60034-1) ±5% of rated voltage.
- Submersible pump shall operate only completely submersed. A suitable separate protection device shall
be installed to prevent the pump from operating when not fully submersed.
- Use screw with property class A2-70
- Flameproof cannot be repaired
. The pumped liquid may contain solid matter with maximum
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