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Les langues disponibles
Les langues disponibles
English
5.3
Scope of delivery
5.4
Accessories
6
Description and function
6.1
Description of the product
6.2
Design set-up
63
The pump can be delivered
• as a complete unit, consisting of the pump, electric motor, baseplate,
coupling and coupling protection (but without the motor)
or
• as a pump with bearing bracket without a baseplate.
Scope of delivery respectively:
• NL/NLG pump
• Installation and operating instructions
Accessories of any kind must be ordered separately.
See catalogue for detailed list.
The NL/NLG pump is a single-stage back pull out centrifugal pump
with spiral housing, which is sealed by a mechanical seal or a stuffing
box packing.
The mechanical seal is maintenance-free.
In conjunction with a Wilo control device (e.g. VR-HVAC, CC-HVAC),
the power of the pumps can be continuously controlled. This allows
optimisation of the pump output for the demands of the installation
and economically efficient pump operation.
The main purpose of the pumps is pumping pure fluids, such as water,
in heating, ventilating and air-conditioning systems or in irrigation
systems.
Design:
Single-stage spiral housing pump in process design for horizontal
set-up.
NL:
Powers and dimensions in acc. with EN 733
NLG: Extension series, not covered by EN 733
The pump consists of a radially divided spiral housing (NLG, addition-
ally with exchangeable stationary wear rings) and cast-on pump
bases. The impeller is a closed radial impeller. The pump shaft is sup-
ported by grease-lubricated radial ball bearings. The pump is sealed
via a mechanical seal in acc. with EN 12756 or by a stuffing box pack-
ing.
WILO SE 07/2013
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