Technical Specifications - Pentax EN6A Instrucciones De Uso

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TECHNICAL SPECIFICATIONS

In general the submersible pumps are being designed and built for transportation
of water in civil, industrial, agricultural sectors and for pressure boosting, water
distribution systems, irrigation, washing installations, steam boiler feed and
aquaculture.
• RADIAL SUBMERSIBLE PUMPS • RN-RG-R
These pumps are suitable for capacities up to 2500 l/m., with small dimensions and
through the addition of various stages, they can reach very high pressures
(max. 680 mt.).
The construction material for each stage of the diffusor is in cast-iron or bronze and
the impeller, depending on the model of the pump, can be in pressed brass or casted
bronze material.
The shaft, protected by the impellers with a prolonged hub and by the chromate
sleeves at its extremeties, is supported by bushings; for pumps with longer length, it
inserted with intermediate support and bushings.
Every pump is equipped, at its extremity, with spring non-return valve. (Figure 3) .
• SEMI-AXIAL SUBMERSIBLE PUMPS • EN-E
They are made of several stages, each one of them having a bowl and an impeller of
cast-iron or, if requested, in bronze / stainless steel.
In standard execution, the shaft is made of stainless steel and is supported, on each
diffuser, by a series of rubber bearings.
Every pump is equipped with spring non-return valve at its extremity. (Figure 5) .
• SUCTION SHROUDS
The above mentioned pumps can be utilized
together with suction shrouds application in
different solutions (Figure 6) :
– Cooling shrouds and protection against
sand wear; for a better motor cooling.
– Vertical suction shroud complete with
non-return valve for a deeper
emptying.
– Shroud for pump installation to
increase pressure, e.g. water supply
systems.
A
COOLING SHROUD
5
7
Fig.3
Fig.5
SUCTION SHROUD FOR
SHROUD PRESSURE
INCREASE
SERVICE
B
C
Fig.6