Transport And Storage; Safety Instruction - Wilo NL Serie Instrucciones De Instalación Y Funcionamiento

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3. Transport and storage

When receiving the material, check that there has
been no damage during the transport. If any defect
has been stated, take the required steps with the
carrier within the allowed time.
CAUTION! If the delivered material is to be installed
later on, store it in a dry place and protect it from
impacts and any outside influences (humidity, frost
etc...).
Handle the pump carefully so as not to damage
the unit prior to installation.
4. Product
CAUTION! The pump is to be used only for the
operating conditions stated by the customer and
confirmed by the supplier. Guarantee is assumed
within the scope of the Wilo conditions of sale.
Appropriate application and operating conditions
are contained in the attached data sheets

4.1 Safety instruction

CAUTION! Never touch the pump casing before a
cooling period.
The pump may only be used for the applica-
tion(s) stated.
Otherwise hazards for people and environment
must be avoided.
Type
Standard
Option
24
4.2 Construction and mode of operation
4.3 Description
Pump casing Impeller material
EN GJL 250
EN GJL 250
G-Cu Sn 10
EN GJL 250
CAUTION! Do not apply any thermal chocs to the
pump. Never cool it with cold water.
Do not exceed fluid density stated. Otherwise,
there is a the danger of motor overload.
The pump must not be operated beyond its cha-
racteristic curve – otherwise there is a danger of
cavitation and motor damage.
NL pumps are horizontal, single-stage volute
casing pumps with nominal outputs and flange
dimensions meeting EN 733 / DIN 24255. Their
back pull out construction allows the disassem-
bly of the complete bearing unit towards the
drive side without removing the pump casing
from the pipework.
NL pumps are preferably used when pure or tur-
bid liquids, not containing solid particles, are to
be handled.
Impurities up to a grain size of 3 mm can be
handled, but it will shorten the service life.
Sealing type
Mechanical seal
MG12-G6-AQ1EGG
Packing rings
graphite + PTFE
Mechanical seal
MG12-G6-AQ1EGG
Mechanical seal
MG12-G6-Q1Q1VGG
VITON
EPDM
EPDM
WILO AG 09/2007