Ambient Conditions; Alignment Of The Suction Side - ProMinent DULCOflex DFBa Series Operating Instructions Manual

4.3.1 Ambient conditions

Tab. 2: Limit values for hose temperature and pressure
Material min. temp. (°C)
Hose Feed chemical
NR -20
NBR -10
EPDM -10
NR-A -10
NBR-A -10
NORPRENE® -40
TYGON® -10
HYPALON® -10
Also observe the general safety information, see

4.3.2 Alignment of the suction side

Transport, storage, assembly and Installation
NOTICE!
Ambient conditions
Possible consequence: Damage to property and
increased wear and tear
Install in the following order. If the pump is to be
installed outdoors, protect it against sunlight and
the influences of the weather.
When positioning the pump, ensure that there is
sufficient room for access for all types of mainte‐
nance work.
There are limit values for temperature and pressure, depending on
the type of hose selected. These limit values are described in the
following:
max. temp. (°C)
Feed chemical
80
80
80
80
80
120
70
80
Ä Chapter 2.1 'General safety information' on page 17
The pump is to be positioned as near as possible to the liquid con‐
tainer, so that the suction side is kept as short and straight as pos‐
sible.
The suction line must be absolutely airtight and made of a suitable
material, so that it is not squeezed together under vacuum.
The diameter must correspond to the rated diameter of the pump
hose. A larger diameter is recommended in the event of viscose
liquids.
The pump is self-priming and does not require an admission valve.
The pump is reversible and the suction connection can therefore
comprise of one of two options. Normally the option is selected
which is best suited to the physical conditions of the installation.
It is recommended to use a flexible transition between two fixed
pipes and the hydraulic connection of the pump, in order to avoid
the transmission of vibrations.
min. temp. (°C) max. pressure (bar)
Environment
-40 8
-40 8
-40 8
-40 8
-40 8
-40 2
-40 2
-40 8
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