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    U 180-2 en

    Change-over Device U 180-2

    Operation Manual

    Read this manual completely and keep it!

    No warranty in case of damages caused by incorrect operation.

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    Imprint

    Change-over Device U 180-2

    Operation Manual

    Version 1.0

    Publisher:

    ALLDOS Eichler GmbHReetzstrae 85 76327 Pfinztal (Sllingen)Postfach 1210 76318 PfinztalTel. +49 (0) 72 40 61-0 / Fax. +49 (0) 72 40 61-177E-Mail: [email protected]: http://www.alldos.com

    2004 by ALLDOS Eichler GmbH

    Subject to change.

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    Installation Data

    NOTE Please fill in this form following commissioning. It will help you and your ALLDOS servicing partner to adjustthe device during subsequent corrections.

    Owner:

    ALLDOS customer No.:

    Contract No.:

    Order No. of device:

    Serial number of device:

    Put into service on:

    Location of device:

    Used for:

    Installation Diagram

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    Contents

    Imprint .............................................................................................................. 2

    Installation Data ............................................................................................... 3

    Installation Diagram ........................................................................................ 3

    1 Of General Interest ................................................................................ 6

    1.1 In General ...................................................................................................6

    1.2 Using this Paper .........................................................................................6

    1.3 Warranty .....................................................................................................6

    2 Safety Instructions ................................................................................ 7

    2.1 Application of the Product ........................................................................... 7

    2.2 Obligations of the Operating Authority ........................................................7

    2.3 Averting Dangers ........................................................................................7

    3 Technical Data ....................................................................................... 8

    3.1 General Data ..............................................................................................8

    Change-over ...............................................................................................8Control Panel ..............................................................................................8Ambient Conditions.....................................................................................8

    3.2 Varianten.....................................................................................................8Actuator ......................................................................................................8Control Panel ..............................................................................................8Prfmittel ..................................................................................................... 8Language of labelling ..................................................................................8

    3.3 Dimensional Drawings ................................................................................9Change-over ...............................................................................................9Control Panel ..............................................................................................9

    3.4 Plants Picture............................................................................................10

    3.5 Connection Diagram .................................................................................10

    4 Installation............................................................................................ 11

    4.1 Transport and Storage ..............................................................................11

    4.2 Unpacking .................................................................................................11

    4.3 Mounting Conditions .................................................................................11

    4.4 Mounting (to solid wall) .............................................................................11

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    5 Commissioning.................................................................................... 12

    5.1 Preparations for Commissioning ...............................................................12Gas Connections ......................................................................................12Electrical Connections ..............................................................................12

    5.2 Checks before Commissioning .................................................................13Electrical Connections ..............................................................................13Gas Connections ......................................................................................13

    5.3 Checking the Tightness of Pressure Gas Lines........................................13Checking the tightness with nitrogen ........................................................13Leak Detecting with ammonia

    (Dosing media Cl2 or SO2) ...........................................................14Test of Functioning of the Change-over Process ......................................14

    6 Operating ............................................................................................. 15

    6.1 Device Description....................................................................................15Function ....................................................................................................15

    6.2 Operation ..................................................................................................16

    Manual emergency operationin case of power failure ..................................................................16

    Exchange servo motor ..............................................................................17

    6.3 Possible Faults ..........................................................................................17

    7 Maintenance......................................................................................... 18

    7.1 Cleaning and maintenance intervals.........................................................18

    7.2 Exchange of gaskets ................................................................................18Dismantling the change-over valve ...........................................................18Re-assembly of the change-over unit .......................................................19

    8 Spare Parts........................................................................................... 20

    8.1 Change-over 180-2...................................................................................20

    8.2 Manual Emergency Operation Lever ........................................................228.3 Spare Parts Set ........................................................................................22

    8.4 Spare Parts List ........................................................................................23

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    1 Of General Interest

    1.1 In General

    This operation manual contains all information for safe operation of the described

    product:

    Technical Data

    Instructions for commissioning, operation and maintenance

    Safety Instructions

    If you require further information or if any problems arise which are not reflected indetail in this manual, contact ALLDOS directly for the information needed.

    1.2 Using this Paper

    Descriptions are written as plain text.

    Lists are indicated by squares (), sublists by dashes (-).

    Operation steps are indicated by bullets (), substeps by small bullets ().

    Cross-references are indicated by italic lettersand an arrow().

    The headings WARNING, CAUTIONand NOTEhave the following meaning:

    !WARNING Danger of injuries and accidents!

    CAUTION Danger of incorrect operation or damage to the product!

    NOTE There is an exceptional feature.

    1.3 Warranty

    Warranty in accordance with our general terms of sale and delivery shall only bevalid, if

    the product is used according to the information within this paper,

    the product is not being opened or used improperly,

    maintenance and repair is implemented exclusively by authorized andqualified personnel,

    original spare parts are used for repairs,

    only parts approved by ALLDOS are being used in the whole gas dosingplant.

    Warranty is not valid for typical wearing parts, e. g.

    gaskets, o-rings, diaphragms

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    2 Safety Instructions

    !WARNING Before commissioning, read the ALLDOS information

    paper Function and Safety of Chlorination Plants.

    2.1 Application of the Product

    The Change-over Device U 180-2 is used for switching over the gas supply betweentwo container batteries within ALLDOS gas dosing systems for water treatment,strictly complying with the instructions of this manual.

    !WARNING Other applications are not intended and are not

    permitted. ALLDOS Eichler GmbH accept noresponsibility for damages caused by unintended use.

    2.2 Obligations of the Operating

    AuthorityThe operating authority of the plant is responsible for

    obeying the following regulations (in Germany):

    - Unfallverhtungsvorschrift Chlorung von Wasser(GUV 8.15)

    - Unfallverhtungsvorschrift Druckbehlter(GUV 2.6)

    - Unfallverhtungsvorschrift Gase(GUV 9.9)

    - Verordnung ber Arbeitssttten (ArbStttV)

    - Verordnung ber gefhrliche Arbeitsstoffe (ArbStoffV)

    - obeying local safety regulations, if necessary

    instructing the operation personnel

    providing the stipulated safety equipment ( information paper"Functionand Safety of Chlorination Plants")

    arranging regular maintenance

    2.3 Averting Dangers

    The Change-over Device is an additional danger point for leakage within the gasdosing plant.

    !WARNING Danger of gas break-out in case of

    impure gas

    penetration with re-liquefied gas

    irregular cleaning and maintenance unintended use

    Only use clean gas

    Install a suitable filtering device before the vacuum regulator

    Arrange regular cleaning and maintenance

    Avoid liquefaction by a correct course of temperature

    - temperature must not fall in the way of the line to the vacuum regulator

    !WARNING Do not open the device!

    Cleaning and maintenance only by authorizedpersonnel!

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    3 Technical Data

    3.1 General Data

    Change-over

    max. capacity 15 kg Cl2/h

    Measurements in mm 225 x 310 x 265 (B x H x T)

    Degree of protection IP 55

    Weight 8 kg

    Supply voltage 230 V / 50 Hz

    Actuating time about 8 s

    Manual emergency operation with enclosed lever

    Control Panel

    Power supply 230 V / 50 HzDegree of protection IP 65

    Operating contact 1 potential-free change-over contact for operation indication of container 1 and 2

    1 potential-free N.O. contact empty indication of container 1 und 2

    Measurements in mm 250 x 375 x 160 (B x H x T)

    Weight about 5.5 kg

    Ambient Conditions

    admissible ambient temperature 0 ... +50 C

    admissible storage temperature -20 ... +60 C

    3.2 Varianten

    Actuator

    Index no. Power Supply

    S005 230 V (standard version)

    Control Panel

    Index no. Description

    V000 with control panel 230 V, 50 Hz (standard version)

    without control panel

    Language of labelling

    Index no. Description

    F000 German (standard version)

    F001 English

    F002 French

    F003 Spanish

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    3.3 Dimensional Drawings

    Change-over

    Control Panel

    t = 150mm

    250

    177 8,5

    394

    370

    350

    A - A

    G

    "2

    6

    9

    G "

    100

    about 225

    G

    "

    41A

    A

    about 265

    about312

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    3.4 Plants Picture

    1 Change-Over 180-22 Control Panel of the Change-over

    3 Vakuum Regulator

    4 Gas Dosing Device

    5 Header line for containers

    6 Injector

    I Container Battery 1

    II Container Battery 2

    3.5 Connection Diagram

    Feeding

    pressure

    pressure valve

    valve

    open close

    Battery I + II

    empty

    "operation"

    message

    green

    Battery IIgreen

    Battery I

    manual operation

    Battery I + II

    2 134

    5

    A B

    C

    6I II

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    4 Installation

    4.1 Transport and Storage

    Handle with care, do not throw!

    Dry and cool storage place.

    4.2 Unpacking

    Observe when unpacking:

    No humidity should get into gas-leading parts!

    No foreign matter should get into gas-leading parts!

    Check the scope of delivery.

    Mount as soon as possible after unpacking.

    4.3 Mounting ConditionsCAUTION In case of non-observance:

    Danger of damages!

    Mounting place free of vibrations.(preferably in the chlorine container room)

    for the control panel:dry mounting place.(preferably not in the chlorine container room)

    Observe permissible ambient temperature!

    4.4 Mounting (to solid wall)

    Change-over

    Mark the bore holes through the mounting plate and bore the holes for twodowels 10 mm.

    Insert the dowels.

    Fix the mounting plate with two washers with two hexagonal screws 8x80 tothe wall.

    Control panel

    Mark the bore holes and bore the holes for four dowels 8 mm.

    Insert the dowels.

    Place the control panel.

    Screw in the 4 included screws 8x60.

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    5 Commissioning

    The change-over device U 180-2 is always installed into a gas dosing plant.Therefore the other components determine the expiration of the commissioning.

    5.1 Preparations for CommissioningGas Connections

    CAUTION Danger of operation failures! Observe permissible line cross-sections!

    Lay and connect the connection lines of both extraction points (bottles, tanks orheader lines) and the vacuum regulator. Please make sure that the lines have nobuckles and the sealing surfaces are clean.

    Connect line A of the container battery 1.

    Connect line B of the container battery 2. Connect line C to the Change-over Device.

    Electrical Connections

    !WARNING Switch off the power supply before connecting the

    mains cable and relay contacts!

    The local safety regulations must be observed!

    Protect the cable connections and plugs fromcorrosion and moisture.

    CAUTION Before connecting the mains cable: Check that the power supply specified on the ratingplate corresponds to the local supply. An incorrectsupply voltage may destroy the device!

    To guarantee electromagnetic compatibility (EMC):The input and current output cables must be screened. Connect screen at one end to PE. Refer to connection diagram!

    Route the input, current output and power supplycables in separate ducts.

    Charge the potential-free connections of the operation

    and empty indication with max. 250 V / 2A.

    Following the connection diagram page 10:

    Connect the servomotor to the control panel.

    Connect the contact manometer to the control panel.

    Connect the control panel to the mains.

    If necessary, connect the lines for remote indication, max. charge 2 A.

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    5.2 Checks before Commissioning

    Electrical Connections

    Check the electric connections.

    NOTE The switch contact of the contact pressure gauge is adjusted in the works to 1 bar and should not be

    altered.

    Gas Connections

    Check tightness of the total plant before start-up.

    observe chapter 5.3 Checking the Tightness of Pressure Gas Lines

    observe manual of the gas dosing system!

    !WARNING Check the tightness not until the total plant is ready for

    start-up.Danger of gas leakage!

    5.3 Checking the Tightness of PressureGas Lines

    Pressure gas lines are all lines from the gas containers to the vacuum regulator.

    If the plant is equipped with a nitrogen rinsing device: Check tightnessroughly with nitrogen (all dosing media).

    Detailed checking:

    - with ammonia (dosing media Cl2

    and SO2)

    Checking the tightness with nitrogen

    Close all container valves

    Open container connection valves and all shut-off valves up to the gasdosing system

    Slowly open the valve of the nitrogen cylinder, until the lines have a pressureof about 10 bar (read at the manometer of the vacuum regulator), closevalve again.

    !WARNING Maximum nitrogen pressure 16 bar!

    Danger of damages and gas leakage when beingexceeded!

    Apply soap water to all sealing components.

    - Formation of bubbles and/or pressure drop at manometer:

    Leakage in pressure lines! Depressurize the plant!

    Eliminate leakage!

    Check tightness again!

    - No formation of bubbles, pressure at manometer does not dropsignificantly within one hour: Pressure lines are tight.

    Close all container connection valves.

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    Leak Detecting with ammonia(Dosing media Cl

    2or SO

    2)

    Leaks are localized by passing the open bottle of ammonia near to the junctionpoints and by squeezing slightly ammonia out of the bottle. If there is a leak wheregas escapes, white vapour is generated. Even the slightest leakages discoveredhave to be repaired immediately.

    ! WARNING Liquid ammonia must not come in contact with parts ofthe plant!Danger of leakages by corrosion!

    Start up the chlorine gas dosing unit in the following sequence:

    Have ready a bottle with ammonia to test the tightness of the lines.

    left battery

    Press the test key, if neccessary

    - until the LED indicating operation of the left battery lights up.

    open the container valve of the left battery by 2 or 3 revolutions and checkthe tightness of the stuffing box.

    open slowly the connecting valves of the containers until the contactpressure gauge indicates 2 bar and then close the two valves again.

    examine all connections and stuffing boxes up to the vacuum regulator.

    start up the dosing device according to the operating manual until thecontact pressure gauge indicates 0 bar.

    right battery

    Press the test key

    - until the LED indicating operation of the right battery lights up.

    open the container valve of the right battery by 2 or 3 revolutions and checkthe tightness of the stuffing box.

    open slowly the connecting valves of the containers until the contactpressure gauge indicates 2 bar and then close the two valves again.

    examine all connections and stuffing boxes up to the vacuum regulator.

    start up the dosing device according to the operating manual until thecontact pressure gauge indicates 0 bar.

    Test of Functioning of the Change-over Process

    Start up the dosing device.

    Open all container valves and container connecting valves of the right andthe left battery.

    Press the test key

    - until the LED indicating operation of the right battery lights up.

    close all the container valves of the right battery.

    - Depending on the dosing capacity, the contact pressure gauge dropsnow more or less fast.

    When the pressure falls below the adjusted value, the change-over deviceactivates automatically the left battery. The corresponding LED lights up andthe contact pressure gauge indicates the pressure of full receptacles.

    The empty container battery is indicated optically, i.e. the LED for the emptyside extinguishes, while the LED for the battery which is now in operationlights up.

    !

    WARNING The container valves and the connecting valves of the

    containers have to be closed when exchanging theempty containers.

    The valves are to open again, after having connectedthe new, full rcontainer

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    6 Operating

    6.1 Device Description

    More and more chlorine gas dosing plants are equipped with a parallel installed

    second receptacle battery in addition to the already connected container battery. Asthe exact point of time when the connected container battery will be empty cannotbe determined in advance, the continuous chlorine gas dosing is endangered.

    The automatic ALLDOS change-over device guarantees a continuous dosingprocess, as the changing over from the empty receptacles to the ones in reserve iseffected automatically. The change-over process is indicated optically at the controlunit.

    Function

    The change-over device is connected at the input side to two gas supply units(container or container battery) and at the output side to a vacuum regulator. Thechange-over device works on the principle of a three-way motor valve, that isactuated by an electrical control panel. The contact pressure gauge installed at the

    output side triggers the change- over process when a supply unit is empty.

    In case of current supply failures, the changing over can be executed manually withthe provided hand lever after having removed the servomotor.

    The Vacuum Change-over U 186-120 consists of

    - 3-way ball valve

    - electric servomotor

    - control panel

    - contact manometer.

    The change-over is connected to

    - two container batteries at the input side

    - a vacuum regulator at the output side.

    The change-over is controlled by the control panel and the contactmanometers.

    - If one container resp. one container battery gets empty, the control panelactivates the servomotor.

    Status message for the container batteries:

    - For each container battery there is one signal lamp:

    green lamp: for "operation"

    - For remote display of the "operation" state of container I und II there isone potential-free change-over contact, and for remote display of the"empty" state of container I und II there is one potential-free N.O. contact.

    By means of key switch it can be manually changed between containerbattery 1 or 2.

    lamplamp

    pushbutton key

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    6.2 Operation

    Switching on and off, selecting manual and automatic operation

    Automatic operation

    No operation is necessary.

    Manual operation

    Press key switch S12.

    The green lamp of the corresponding container battery lights up.

    Manual emergency operationin case of power failure

    In case of power failure or other electric problems the change-over device can beoperated manually by means of the enclosed lever (14).

    NOTE In order to avoid transfusion when changing over manually, the valve of the empty container battery hasto be closed at first and then the one of the full batterycan be opened.

    NOTE The right battery is connected, when the lower end of the lever points to the right. (The left battery is closed.)

    The left battery is connected, when the lower end ofthe lever points to the left. (The right battery is closed.)

    Lift off the cover of the servomotor (4 screws), eventuaelly pinch offconnecting cables. Dismantle servomotor (3 screws ( 32)).

    Insert the journal of the supplied hand lever (14) in the fork (8) and fasten thelever by means of the washer (13) and hexagonal screw (27).

    Place the lower end of the lever pointing to the empty battery

    - the empty battery is connected.

    Arrest the lever by tightening the hexagonal screw (27).

    NOTE Do not resort to force. It is sufficient to press slightly the lever to close a container battery. The correctingdisplacement is only about 1 mm.

    Close the valves of the empty battery.

    Unscrew the fastening screw and adjust the lever so that the lower endpoints to the full container battery.

    - the full container battery is connected.

    Arrest the lever.

    After Elimination of Power Failure

    Stop chlorine gas dosing unit.

    Close both container batteries.

    NOTE Unintended transfusion of chlorine gas occurs, if not both batteries are closed.

    Take the lever off and install the servomotor.

    Adjust the servo motor manually to the container battery which has been inoperation.

    Open slowly both receptacle batteries.

    start up the chlorine gas dosing unit.

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    6.3 Possible Faults

    Exchange servo motor

    Deenergize the control unit.

    Mark and pinch off the cable at the servo motor.

    Dismount the servo motor following the instructions in the paragraph "Ma-nual emergency operation in case of power failure", and have it repaired orreplace it by a new one.

    Insert the lever and operate it accordingly.

    observe "Manual emergency operation in case of power failure"

    27

    13

    14

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    7 Maintenance

    7.1 Cleaning and maintenance intervals

    in case of soiling

    in case of disturbances

    at the latest after one operational year

    Exchange gaskets every two years (spare parts set 553-180).

    !WARNING Switch off the entire system before starting the

    cleaning and maintenance work!

    7.2 Exchange of gaskets

    Block the gas supply from both groups.

    Operate the entire system gas-free and switch it off.

    Unscrew the servomotor.

    Release all three pressure gas connections.

    Release the holding screw, remove the plug of the contact manometer (15).

    Remove the change-over device.

    Dismantling the change-over valveDismantling the change-over valveDismantling the change-over valveDismantling the change-over valveDismantling the change-over valve

    Dismantle the plate (4). Remove 3 screws (26) and distance bushings (10).

    Release the headless screw (30) and the cheese head screw (28), removethe fork (8) from the shaft (5).

    Unscrew the stuffing box (9).

    Remove the screws (25) and lift the cover (2).

    Take the washer (20), the bush (19) and the O-ring (50) out of the cover.

    Remove the shaft (5) with the closing unit (21), the bush (19) and the O-ring(50) from the enclosure.

    Remove the closing unit (21) from the lateral bolt of the shaft (5).

    Unscrew the three connection branches (6) with flat gaskets (41) from theenclosure (1). Leave the nut (18) and connection nipple (17) at theconnection branch (6).

    Screw the nozzles (7) with O-rings (43) out of the connection branch (6).

    Clean all parts thoroughly in warm water (approx. 40 C) and dry them well.

    CAUTION When cleaning the enclosure (1) please observe, thatno water and no humidity penetrate the measuringmuff of the contact manometer (15).Danger of corrosion when installing humid parts!

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    Re-assembly of the change-over unitRe-assembly of the change-over unitRe-assembly of the change-over unitRe-assembly of the change-over unitRe-assembly of the change-over unit

    CAUTION Install only dry parts.Danger of corrosion when installing humid parts!

    Replace old gaskets by new ones from the spare parts set 553-180.

    Re-assemble all valve parts in reversed order.

    Fix the change-over valve at the wall.

    Re-establish the pressure gas connections using new flat gaskets (47.51).

    Put on the plug for the contact manometer (15) and screw it in tight.

    Slide the servomotor (16) with the eccentric bushing (11) in the fork (8) andfasten it with screws (32) and sealing rings (34) at the plate (4).

    Put the cover on the servomotor and screw it together with the flat gasket.

    !

    WARNING Re-start as described in Commissioning. Before re-

    starting, check the tightness!Danger of gas escape!

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    34

    32

    8

    35

    16

    39

    11

    2

    4

    9

    20

    5

    50

    19

    1

    41

    48

    8 Spare Parts

    8.1 Change-over 180-2

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    B - B

    C - C

    47.3/ 4/ 5

    28

    30

    47.51

    22

    25

    44

    10

    26

    C

    C

    15

    3

    21

    43

    7

    6

    17

    18

    A - A

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    27

    1314

    8.2 Manual Emergency Operation Lever

    8.3 Spare Parts Set

    Part no.: 553-180

    contains: bush (19), washer (20), closing unit (21),

    flat gasket (41, 44, 47.51), o-rings (43, 50)

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    8.4 Spare Parts List

    metI .ontraP noitpircseD krameR

    1 003-2052.21 erusolcne -

    2 003-3052.21 revoc -

    3 004-4052.21 etalp -4 004-1806.21 etalp -

    5 004-8052.21 tfahs -

    6 004-9052.21 hcnarbnoitcennoc -

    7 004-0152.21 elzzon -

    8 004-1152.21 krof -

    9 004-2152.21 xobgniffuts -

    01 004-3152.21 gnihsubecnatsid -

    11 004-2806.21 gnihsubcirtnecce -

    31 815.05 rehsaw -

    41 004-3352.21 revel -

    51 0252.21 retemonamtcatnoc rab61-0

    61 103-00201.54 rotomovres zH05/V032

    71 004-4225.21 elppinnoitcennoc "4/1G

    81 014-3225.21 tun 6/8

    91 004-9425.21 hsub EFTP

    02 225.05 rehsaw -

    12 1452.21 tinugnisolc -

    22 221.05 wercsdaeheseehc 21x5M

    52 598.05 wercsdaeheseehc 61x5M62 785.05 wercsdaeheseehc 53x5M

    72 512.05 nogaxehwercs 02x5M

    82 8631.05 wercsdaeheseehc 02x4M

    03 6711.05 wercssseldaeh 01x4M

    23 419.05 wercsdaeheseehc 04x6M

    43 471.45 gnirgnilaes -

    53 004-2201.84 lebalevisehda -

    93 4651.05 wercssseldaeh 6x5M

    14 140.45 teksagtalf 2x62x5,12

    34 401.25 gnir-o 5,1x21notiV

    44 161.45 teksagtalf 2x45x54

    54 5.721-073 tinulortnoc zH05/V032

    74 004-7652.21 2-081Useirossecca -

    1.74 1.330.84 lewod -

    2.74 1151.05 wercs -

    3.74 1.130.84 lewod -

    4.74 5031.05 wercs -

    5.74 915.05 rehsaw -

    15.74 371.45 teksagtalf -84 004-1652.21 lebalevisehda -

    05 381.25 gnir-o 5,1x7notiV

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    U 180-2 en