EN
3
Use
3.1
Intended use
The Multipur backwash filters are used for filtration
of drinking and industrial water to protect the wa-
ter mains and the connected fittings, equipment,
machinery, tanks, boilers and production facilities
from malfunction and corrosion damage caused by
foreign particles.
The filters can also be used for filtration of well,
process, boiler feed, cooling and air conditioning
water. In these cases, advice must be obtained
from a specialist.
The filters are unsuitable for oils, greases, solvents,
soaps and other lubricating media. Water-soluble
substances also cannot be separated off.
3.2
Foreseeable misuse
Operating the system with parameters other than
those specified in this documentation and in sec-
tion 4.1.
Not adhering to the prescribed maintenance and
service intervals.
Using spare parts and consumables not approved
by BWT.
3.3
Disclaimer
The manufacturer is released from any liability if the
customer intentionally or forcibly removes guards
or safety devices, if the customer wilfully modifies
or circumvents the same, or if the customer does
not follow the instructions in this operating manual
or on the system.
3.4
Other applicable documentation
Observe all documents from suppliers that were
included with delivery. These are considered part
of this documentation and must not be changed
or removed.
24
4
Function
The untreated water flows through a stainless steel
filter element in the Multipur filter. Foreign particles
> 100 µm or > 200 µm are thus retained. Depending
on their size and weight, these particles either fall
directly into the lower part of the filter housing, or
adhere to the filter element.
During backwashing, the seal at the rinsing water
outlet opens. The suction ring segments of the
backwashing element move from the bottom to the
top and back again over the entire filter surface and
thus clean the filter fabric by suction with clean water
at an extremely high flow rate.
Backwashing is carried out by turning the hand-
wheel to the stop and back.