Here is the whole article as a PDF - sab-bremen.de

The pressure vessels are manufactured
according to PED and ASME up to 16 bar.
Whether materials such as GRP,
rubberised steel versions or special
stainless steels for the petrochemicals
industry are used is decided only by the
application and the technical requirement.
With special coatings, directly on the
slotted hole screen, problems with
biological contamination are a thing of
the past. Due to the increased flow rate
with simultaneous pressure drop during the
backwash, mussel and snail larvae are
killed. A physical process which has been
known for a long time and is mentioned
favourably again and again.
All requirements fulfilled
According to the enquiry mentioned at the
start, initially five filters for the operation
and one "standby" filter were required by the
customer for this project. However, it was
very quickly apparent that there was no
available space for a total of six DN600
lines with shut-off valves. In the technical
discussion, the idea was born to integrate
several screens with the corresponding lid
assemblies in one housing.
ACHEMA I P ROCESS AND SYS T EMS
This new, self-cleaning filter can be installed in all
possible positions: horizontally, vertically and even an
overhead installation has been contemplated
The F480 filter was developed in a very
short time and, in collaboration with the
customer, continuously optimised to
completely satisfy all requirements
concerning the installation space. Due to
its now very compact design, it was
possible to install the filter in all
conceivable positions: Horizontally,
vertically – even an overhead installation
was contemplated by the customer to
keep the piping complexity as low as
possible.
This had scarcely been resolved when
the next requirement arrived: with this
compact design, the input pressure could
actually be reduced to be able to optimise
the pump performance. Then another
challenge came: As algae formation and
the formation of biological substances
occurred repeatedly in the application,
the customer wanted to control these
without using chemical additives. Using
many optimisations inside the filter,
these requirements were also fulfilled.
Hall 5.0, Stand C20
Schünemann www.vfmz.net/1268320
the new filter series has been
designed for flow rates of more than
45,000 m ³ /h
PROCESS TECHNOLOGY 6/2012