EDUR-multiphase pumps
are designed to supply integrated liquid-gas mixtures and to generate dispersions.
They enable the supply of up to 30% gas proportions.
Fields of Application
and Conveyed Fluids
EDUR-multiphase pumps are
used in water and wastewater technology as
well as in different industrial technologies.
Typical fields of application are flotation plants acc.
to VDMA specification 24430, ozonization, water treatment, crude
oil water separation, fuel production as well as the general process
technology. Multiphase pumps supply liquid-gas mixtures and enrich
liquids with gases, such as air, oxygen or ozone.
Functionality
The pump hydraulic differs in
terms of structure and mode of operation from conventional centrifugal pumps
and thus allows throttled-down operation on the suction side without cavitation
arising that is critical when using standard centrifugal pumps. Gas
proportions up to 30% are self-primed and safely
co-supplied. In addition, dynamic mixing and
an excellent gas saturation is guaranteed by
those pumps.
Variants of
EDUR-Multiphase Pumps
Multiphase pumps are also referred to as flotation pumps, DAF pumps or
(gas) saturation pumps. EDUR-series for multiphase pumps are the PBU and LBU. They are available
in a variety of construction styles and materials, such as grey cast
iron, bronze or stainless steel as well as with various shaft seal systems and
drive solutions. As required, we deliver customer-specific configurations. Of course, we
can also provide certificates of all authorized classification societies and necessary test reports.
Advantages
Implementing EDUR-multiphase pumps eliminates the need for expensive
compressor systems, pressure vessels, control units, valves and the
corresponding maintenance costs. Gaseous fluids can be fed directly into the pump
within the partial flow process. The special, open and axial thrust-free
impeller design of these pumps guarantees this efficient process design.
As with all EDUR-pumps, multiphase pumps stand out due to their efficiency, economy
and reliability. Moreover, we would like to emphasize the following product advantages as
well as technical characteristics:
Gas
enrichment of liquids and conveyance of gas-loaded liquids e.g. with air
or ozone
Direct
gas entry into the suction line
Dynamic
mixing
Excellent
gas saturation
Perfect
dispersion with bubble sizes between 30 and 50 μm after expansion
Optimized
size of pressure nozzle for low pipe friction losses and velocity head
difference
Significant
reduction of plant components
Cost-
and energy-efficient operation in flotation plants
Optional
sensor-based operation monitoring
Low
noise emissions
Easy
maintenance
Technical data
Flow
rate: max. 60 m³/h
Head:
max. 250 m
Permissible
operating pressure: up to 40 bar
Gas
conveyance: up to 30%
Temperature:
-50 °C up to +140 °C
Viscosity:
up to 115 mm²/s
