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Translation of the original instructions with assembly instructions AF 172 G2, Filtration Group GmbH, 09.12.17, Mat. No. 70355433, Version 05

Automatic valves (optional)

•

Connect the precontrol valve (5/2-way magnetic valve) to

the compressed air supply (approx. 6 bar).

•

Connect the solenoid to the power supply.

External pressure valve

•

Connect the solenoid to the power supply.

Refer to the contract documentation for
special versions.

bar

kPa

psi

R
P

R
P
S

A
B

Fig. 7:

Electro-pneumatic connections

Required on the switch box:

•

Manual release for cleaning

9.5.2 Connection to FG controller (optional)

•

Connect the incoming feeder, gear motor, external

pressure valve, differential gauge / switch (optional) and
precontrol valve (optional) in accordance with the
enclosed circuit diagram.

9.6

Control variants of the AF 172 G2

If the delta p signal is still present after
cleaning, the cleaning process is repeated.

The drain valve must remain closed for the
duration of the cleaning cycle.

The cleaning process is controlled differently according to
the application. The control variants described here are
examples and are simply intended to serve as a guide.

9.6.1 Control variant 1

B2TH

B4TL

B4TH

Fig. 8:

Control variant 1

Parameter

Description

Recommended

value

Suppress differential
pressure peaks

1 s

B2TH

Motor running time

7 s

External pressure valve
ON delay

0.5 s

B4TH

Drain valve pulse time

2 s

B4TL

Drain valve interval time

1 h

9.6.2 Control variant 2

B2TH

Fig. 9:

Control variant 2

Parameter

Description

Recommended

value

Suppress differential
pressure peaks

1 s

B2TH

Motor running time

7 s

External pressure valve
ON delay

0.5 s

Drain valve starting
delay

5 s

Drain valve pulse time

2 s

9.6.3 Other control options

Other control options, such as "continuous flushing" or
control adapted to the process sequence, can also be
implemented.

Electric line =

Pneumatic line =

Compressed
air

5/2-way

magnetic valve

5/2-way
magnetic valve

∆

Motor

Backflush

valve

External

pressure

valve

Drain valve

Interlocked

∆

Motor

Backflush

valve

External

pressure

valve

Drain valve

Interlocked

Содержание AF 172 G2

Страница 1: ...lation of original instructions with installation instructions Automatic backflush filter with external pressure cleaning and integrated cyclone effect AF 172 G2 Material No of Instruction Manual 7035...

Страница 2: ...r optional 10 9 6 Control variants of the AF 172 G2 10 9 6 1 Control variant 1 10 9 6 2 Control variant 2 10 9 6 3 Other control options 10 10 Start up 11 10 1 Functional test 11 10 2 Operating settin...

Страница 3: ...Prepare a maintenance schedule During operation of the system Keep the Instruction Manual handy at the place where the system is used Heed the safety instructions Always operate the machine system in...

Страница 4: ...losed Homogenisation A system of substances is given a uniform composition Initial differential pressure Differential pressure at the start of the filtration process when the segmented element is clea...

Страница 5: ...ration before or after certain process steps Process filtration Destruction of unwanted agglomerates 6 Functional description 6 1 Process principle of the AF 172 G2 The tangential inflow between a pre...

Страница 6: ...Electro pneumatic backflush valve optional 11 Outlet connection 12 Filter housing 13 Backflush channel 6 3 Functional principle of the AF 172 G2 5 1 2 3 4 Fig 3 Functional principle of an automatic fi...

Страница 7: ...consumption 230 V 400 V Peak noise emission 70 dB A Dimensions See data sheet Min dismantling clearance above filter 380 mm Total dry weight 41 kg Max operating temperature 120 C Max permissible oper...

Страница 8: ...Risk of injury to persons or damage to property Check the conductivity between all components Note the maximum permissible resistance R 10 Make sure that earthing is provided by the customer It must b...

Страница 9: ...ash protection if necessary Lay the pipes without a siphon if possible to prevent any risk of clogging due to sedimented concentrate 1 2 bar kPa psi Fig 5 Mechanical installation nodular cast iron ver...

Страница 10: ...ion of the cleaning cycle The cleaning process is controlled differently according to the application The control variants described here are examples and are simply intended to serve as a guide 9 6 1...

Страница 11: ...on of the shaft with that indicated by the arrow clockwise rotation Reverse the terminal connections of the gear motor if necessary Fit the gear motor cover again and screw it tight Fig 10 Direction o...

Страница 12: ...njury to persons or damage to property Rinse the drain line daily weekly depending on the application Open the drain valve manually for approx 10 15 s The drain line is rinsed 12 Shutting down the aut...

Страница 13: ...oncentration of dirt on clean side Segmented element defective Check the segmented element and if necessary renew it Seals brittle Check the seals and if necessary renew them Excessive leakage on shaf...

Страница 14: ...Clean Seal kit Check for leakage External pressure valve Check correct functioning and if necessary clean Check valve Check correct functioning and if necessary clean The necessary maintenance work is...

Страница 15: ...ting the gear motor 2 Loosen and remove the hexagon screws 3 3 and the spring washers 3 4 on the bell housing of the gear motor Pull the gear motor 1 vertically off of the shaft Fig 14 Removing the ge...

Страница 16: ...ary maintenance steps section 15 2 1 Unplug the connector from the solenoid 1 9 13 Fig 16 Unplugging the connector 2 Remove the solenoid 1 9 13 Fig 17 Removing the solenoid 3 Install in reverse order...

Страница 17: ...eat 1 9 10 Fig 20 Replacing the valve seat 2 Clean the interior of the backflush adapter Clean and or replace the valve seat Install in reverse order 15 5 4 Maintaining the check valve CAUTION Pressur...

Страница 18: ...5 2 Remove the gear motor section 15 3 Remove the solenoid 1 9 13 section 15 5 1 steps 1 2 1 Loosen and remove the hexagon screws 5 and the washer 6 on the filter cover Fig 22 Loosening the hexagon sc...

Страница 19: ...moving the backflush channel 15 8 Cleaning the filter Remove the filter insert section 15 6 15 8 1 Cleaning the filter insert WARNING Danger of aerosol formation All work must be carried out in a room...

Страница 20: ...he segmented element The numbers indicated in parentheses correspond to those used in the spare parts drawing The segmented element can be dismantled and mounted again more easily if it is stood uprig...

Страница 21: ...AF 172 G2 Filtration Group GmbH 09 12 17 Mat No 70355433 Version 05 3 Remove the centre flange 2 1 Fig 28 Removing the centre flange 4 Carefully remove the segmented element from the cover 7 together...

Страница 22: ...e pressure channel housing 6 Clean all dismantled components Replace the element seals and guides section 15 10 or the pressure channel insert section15 9 15 9 2 Installing the segmented element The n...

Страница 23: ...flange 2 1 with the cylinder head screws 2 7 and the spring washers 2 5 Fig 32 Preassembling the pressure channel housing and the centre flange 3 Carefully insert the preassembled unit pressure chann...

Страница 24: ...60 2 60 3 Fig 34 Replacing the element seals and guides 15 11 Replacing the shaft seals and shaft guide WARNING If the system is maintained by unauthorised persons Risk of injury All warranty claims...

Страница 25: ...ning and removing the hexagon screws 3 Remove the sealing disc 1 9 4 and the shaft seal attachment 1 9 3 Fig 37 Removing the sealing disc and the shaft seal attachment 4 Remove the lip seal 75 1 back...

Страница 26: ...the cover 7 Fig 40 Withdrawing the backflush adapter housing 7 Remove the O ring 75 5 Fig 41 Removing the O ring 8 Remove the bearing bushes 55 1 Fig 42 Removing the bearing bushes 9 Clean the shaft s...

Страница 27: ...Page 27 Translation of the original instructions with assembly instructions AF 172 G2 Filtration Group GmbH 09 12 17 Mat No 70355433 Version 05 16 Exploded view Fig 43 Exploded view...

Страница 28: ...Sechskantmutter ISO 4034 M 8 2 7 Cylinder head screw 2 Zylinderschraube M6x16 4 Housing 1 Geh use Z AF 1724 221 4 1 Housing 1 Geh use AF 1724 221 4 2 Connecting flange 1 Anschlussflansch AF 172 4 3 B...

Страница 29: ...tahl 4 3 Backflush channeln Z AF 172 carbon steel 70345207 R cksp lkanal Z AF 172 C Stahl 4 3 Backflush channeln Z AF 172 stainless steel 70345207 R cksp lkanal Z AF 172 Edelstahl 55 Bearing bush kit...

Страница 30: ...ith assembly instructions AF 172 G2 Filtration Group GmbH 09 12 17 Mat No 70355433 Version 05 19 Declaration of incorporation As defined by the EC Machinery Directive The filter is only allowed to be...

Страница 31: ...Page 31 Translation of the original instructions with assembly instructions AF 172 G2 Filtration Group GmbH 09 12 17 Mat No 70355433 Version 05...

Страница 32: ...Page 32 Translation of the original instructions with assembly instructions AF 172 G2 Filtration Group GmbH 09 12 17 Mat No 70355433 Version 05...

Страница 33: ...Page 33 Translation of the original instructions with assembly instructions AF 172 G2 Filtration Group GmbH 09 12 17 Mat No 70355433 Version 05...

Страница 34: ...05 20 Declaration of conformity The enclosed declaration of conformity only applies to discharge casings with a CE mark for categories I IV or to complete filters in accordance with the Ex directive f...

Страница 35: ...e clearance 8 Dismantling clearance 8 Drain valve 4 11 12 14 E Environmental protection 3 F Filter cake 4 Filter insert 18 19 Filter seat 8 G Gear motor 6 7 9 10 11 13 15 16 17 18 24 I Initial differe...

Страница 36: ...Filtration Group GmbH Schleifbachweg 45 D 74613 hringen Phone 49 7941 6466 0 Fax 49 7941 6466 429 fm de sales filtrationgroup com www filtrationgroup com 70355344 I05 12 2017...

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