Kobold MFT User manual

Operating Instructions
for
Magnetic Filters and Dirt Traps
Model: MFT

MFT
page 2 K03/0522
1. Contents
1.Contents ........................................................................................................ 2
2.Note .............................................................................................................. 3
3.Instrument Inspection .................................................................................... 3
4.Regulation Use ............................................................................................. 3
5.Operating Principle ........................................................................................ 4
6.Mechanical Connection ................................................................................. 4
7.Maintenance ................................................................................................. 5
8.Technical Information .................................................................................... 5
9.Order Codes ................................................................................................. 6
10.Dimensions ................................................................................................... 7
11.EU Declaration of Conformance ................................................................... 8
Manufactured and sold by:
Kobold Messring GmbH
Nordring 22-24
D-65719 Hofheim
Tel.: [phone]
Fax: [phone]
E-Mail: [email protected]
Internet: www.kobold.com

MFT
K03/0522 page 3
2. Note
Please read these operating instructions before unpacking and putting the unit
into operation. Follow the instructions precisely as described herein.
The instruction manuals on our website www.kobold.com are always for currently
manufactured version of our products. Due to technical changes, the instruction
manuals available online may not always correspond to the product version you
have purchased. If you need an instruction manual that corresponds to the
purchased product version, you can request it from us free of charge by email
([email protected]) in PDF format, specifying the relevant invoice number and
serial number. If you wish, the operating instructions can also be sent to you by
post in paper form against an applicable postage fee.
The devices are only to be used, maintained and serviced by persons familiar
with these operating instructions and in accordance with local regulations
applying to Health & Safety and prevention of accidents.
When used in machines, the measuring unit should be used only when the
machines fulfil the EC-machine guidelines.
3. Instrument Inspection
Instruments are inspected before shipping and sent out in perfect condition.
Should damage to a device be visible, we recommend a thorough inspection of
the delivery packaging. In case of damage, please inform your parcel service /
forwarding agent immediately, since they are responsible for damages during
transit.
Scope of delivery:
The standard delivery includes:
 Magnetic Filter model: MFT
4. Regulation Use
Any use of the Magnetic Filter, model: MFT, which exceeds the manufacturers
specification may invalidate its warranty. Therefore, any resulting damage is not
the responsibility of the manufacturer. The user assumes all risk for such usage.

MFT
page 4 K03/0522
5. Operating Principle
KOBOLD magnetic filters are used in many applications, including central system
filters, where it is necessary to protect devices from dirt and contamination. They
are used to catch and remove contaminants from industrial cooling and
lubrication circuits, especially where residue and sediment from assembly (such
as chips from thread-cutting) and normal operation (such as scale and residue
from frictional wear) can be carried along in the medium being filtered.
Contaminants of these types can form deposits that can cause pitting and
corrosion in highly sensitive measuring and control devices. Regular maintenance
and cleaning of the magnetic filter inserts will effectively prevent system and
device failure and the resulting downtime.
The MFT adapter magnetic filter has an especially big magnetic bar and a
stainless steel filter cartridge. Therefore, it can be used as a central filter for new
small and medium heating systems. Furthermore, this filter is appropriate for such
systems where an especially high magnetite and dirt contents is to be expected.
The standard execution of the MFT adapter magnetic filters is delivered with a
stainless steel filter cartridge (70/197 mm) with a filtering grade of 600 µ. If
desired it can also be supplied with a filter cartridge with a filtering grade of 400 µ
or 800 µ.
6. Mechanical Connection
Before mounting:
 Remove all transport safety devices. Observe that there won’t be any parts of
the package in the armature.
 Satisfy yourself that the armatures/vales will only be used within their
admissible limiting value (see technical data).
 After the mechanical connection check the tightness of the connection screw
connection/tube, if possible.
Horizontal mounting between two closing devices. We recommend a drain device
in the tube which can be blocked. In any case the flowing direction arrow on the
filter must be observed on installation. The flowing water first circulates around
the magnetic bar and then passes – from the inside to the outside – the stainless
steel filter cartridge.

MFT
K03/0522 page 5
7. Maintenance
In order to avoid disturbances a regular maintenance of the filter is absolutely
necessary. In the first instance exact intervals cannot be stated because
maintenance depends on the grade of contamination. A first control of the filter
should be made already a short time after the start of operation. Depending on
the magnetite and dirt particles found in the filter the next maintenance can be
planned. This maintenance should be made once a year before the beginning of
the heating period at minimum. The magnetic filter can be cleaned with water or
air jet, also with brush and cleaning rag.
8. Technical Information
Thread connection: Female thread G 1... G 2
male thread R ¾ ... R 1¼
(according to DIN 2999)
Solder connections: 22 mm ... 35 mm
Nominal pressures
Screw-on magnetic filter: PN 10
Adapter magnetic filter: PN 10
Max. temperature
Adapter magnetic filter: 90 °C
Filter: see table

MFT
page 6 K03/0522
9. Order Codes
Dimensions and order details (example: MFR-0015)
Version Connection kV-value
m³/h
Filter
size
µm
Size of
filter
cartridge
mm
L
mm
h
mm
H
mm
t
mm
SW
mm
Weight
kg ID no.
Female
thread
adapter
Rp 1 17,5 600 70/197 130 283 324 - - 5,1 MFT-I025
Rp 1 1/4 20 600 70/197 135 283 324 - - 5,1 MFT-I032
Rp 1 1/2 25 600 70/197 150 293 338 - - 5,5 MFT-I040
Rp 2 33 600 70/197 160 299 351 - - 6,0 MFT-I050
Male thread
adapter
R 3/4 12 600 70/197 192 283 324 11 37 5,3 MFT-A020
R 1 17,5 600 70/197 223 283 324 19 46 5,5 MFT-A025
R 1 1/4 21 600 70/197 253 283 324 21,5 52 5,9 MFT-A032
Solder
connection
adapter
22 mm 12 600 70/197 176 283 324 17 37 5,3 MFT-L020
28 mm 17,5 600 70/197 184 283 324 18,5 46 5,5 MFT-L025
35 mm 21 600 70/197 200 283 324 23,5 52 5,9 MFT-L032

MFT
K03/0522 page 7
10. Dimensions
A
dapter ma
g
netic filter, female thread, MFT-I
A
dapter ma
g
netic filter, threaded connection, MFT-
A
, MFT-L

MFT
page 8 K03/0522
11. EU Declaration of Conformance
We, KOBOLD Messring GmbH, Hofheim-Ts, Germany, declare under our sole
responsibility that the product:
Magnetic Filter/Dirt Trap Model: MFT-...
is in conformity with the EC Directives noted below:
2011/65/EU RoHS (category 9)
2015/863/EU Delegated Directive (RoHS III)
Hofheim, 11 Sept. 2019
H. Peters M. Wenzel
General Manager Proxy Holder