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

Transport, storage, assembly and Installation
4.3.1

Ambient conditions

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
NORPREN -40
TYGON -10
Also observe the general safety information, see
4.3.2

Alignment of the suction side

22
NOTICE!
Ambient conditions
Possible consequence: Property damage and
increased wear and tear
Assembly is to be carried out in the following order. If
the must has to be installed outdoors, then it is to be
equipped with protection against sunlight and weather
influences.
When positioning the pump, ensure that sufficient
room for access is provided 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 section:
max. temp. (°C)
Feed chemical
80
80
80
80
80
120
70
Ä Chapter 2.1 "General safety information" on page 16
The pump is to be positioned as near as possible to the liquid
container, so that the suction side is kept as short and straight as
possible.
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