Automatic Backflush-Filter of type
DELTA-BFF
for water and hydrous media
distinguish of the following features:

  • Selfcleaning routine without interrupting operation on
    reaching the permitted differential pressure through
    automatic reversal of filter or manually by hand control
    with filtered medium
  • No moving parts within the filter system resulting in
    lower operating costs due to long service life
  • Full cross-section for drainage of flushing medium
    resulting in short flushing times and less loss of medium
  • Simple and time-saving maintenance. Filter cartridges
    can be removed without having to dismantle filter housing
  • Robust and user-friendly filter in compact, vertical design
  • Universal connections through variable positions for
    inlet and outlet and for dirt drain
  • Control and monitoring of individual functions through
    a PLC (programmable logic controller)
  • Filtration ratings from 50 µm up
  • Max. allowable pressure 6 bar, 10 bar or as required
  • Max. allowable temperature 80°C or as required
  • Welded filter housing of stainless steel or of carbon
    steel with paint
  • Filter cartridges of high-grade stainless steel
  • Standard sizes from DN80 (3") up to DN350 (14") or
    as required
  • Flow capacities for the standard sizes up to 800 m³/h
    water
    (in relation to a filter rate of 100 µm)
  • Industrial version - design according to German
    AD2000-regulations and PED 97/23/EC
  • Optional: TÜV acceptance, high-pressure version,
    special materials, inner coating and more

Type

BFF-40

BFF-80

BFF-140

BFF-220

BFF-350

BFF-500

BFF-800

Flow capacity
at 100 µm
0 - 40 m³/h 41 - 80 m³/h 81-140 m³/h 141 - 220 m³/h 221 - 350 m³/h 351 - 500 m³/h 501 - 800 m³/h
In- and outlet Flange DN80,
PN16,C
Flange DN100,
PN16,C
Flange DN150,
PN16,C
Flange DN200,
PN16,C
Flange DN250,
PN16, C
Flange DN300,
PN16,C
Flange DN350,
PN16,C
Discharge Flange DN40,
PN16,C
Flange DN50,
PN16,C

Flange DN80,
PN16,C

Flange DN100,
PN16,C
Flange DN125,
PN16,C
Flange DN150,
PN16,C
Flange DN200,
PN16,C
Flushing nozzle
for foreign fluid
optionally
Flange DN40,
PN16,C
Flange DN50,
PN16,C
Flange DN80,
PN16,C
Flange DN100,
PN16,C
Flange DN125,
PN16,C
Flange DN150,
PN16,C
Flange DN200,
PN16,C
Drain 1" BSP 1" BSP 1" BSP 1" BSP 2" BSP 2" BSP 2" BSP
Ventilation 3/8" BSP 3/8" BSP 3/8" BSP 3/8" BSP 3/8" BSP 3/8" BSP 3/8" BSP

 


Automatic Backflush-Filter of type
DELTA-BFS
for water and hydrous media
distinguish of the following features:

  • Selfcleaning routine without interrupting operation on reaching the permitted differential pressure
  • Continous filtration
  • Compact filter in vertical design
  • Filtration ratings from 45 µm up
  • Filter housing of cast iron or stainless steel
  • Filterelement of stainless steel
  • Standard sizes from DN80 (3") up to DN300 (10")
  • Efficiency of the cleaning with less loss of liquid
  • Adjustable drain-valve for a reduction of the liquid loss
  • Completly fitted with control (IP65), drain-valve, monitoring of the differential pressure, gear motor

Operating principle:

The liquid flows through the filterelement from the inside to
the outside.The dirt deposits on the inner surface of the 
filterelement. The differential pressure increases caused by
the accumulation of the dirt. If the differential pressure reachs
a certain level, the cleaning cycle is released. The gear motor
starts it's operation und turns the hollow shaft with  the nozzles.
The drain-valve is opened. The flow direction is reversed
locally by this constellation. The dirt is dissolved from the
filterelement. It is discharged of the filter housing over the
nozzles and the hollow shaft through the drain-valve with
a small quantity of of liquid. The filtration is not interrupted
during this cleaning cycle.

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DELTAFILTER Filtrationssysteme GmbH  Im Neudeck 10  D-67346 Speyer  GERMANY
phone +49/6232/3151-31  fax +49/6232/3151-35  e-mail  info@deltafilter.com
homepage http://www.deltafilter.com