2702
Type 2702
Piston actuated angle seat valve
Kolbengesteuertes Schrägsitzventil
Soupape de réglage à tête inclinée commandée par piston
Operating Instructions
Bedienungsanleitung
Manuel d‘utilisation
We reserve the right to make technical changes without notice.
Technische Änderungen vorbehalten.
Sous réserve de modification techniques.
© Bürkert Werke GmbH, 2005 - 2013
Operating Instructions 1308/06_EU-ML_00804367 / Original DE
Contents
List of content Type
Generales notes .................................................................................................................................................5
Symbols............................................................................................................................................................................. 6
Intended use .................................................................................................................................................................... 6
General safety notes ...................................................................................................................................................... 6
Contact addresses ......................................................................................................................................................... 7
Warranty ............................................................................................................................................................................ 7
Transport , storage .......................................................................................................................................................... 7
english
Disposal ............................................................................................................................................................................ 8
Information in internet .................................................................................................................................................... 8
technical Data .......................................................................................................................................................9
Construction of the control valve ..............................................................................................................................10
Media ...............................................................................................................................................................................10
Kv values .........................................................................................................................................................................11
commissioninG .................................................................................................................................................... 13
Installation of the valve .................................................................................................................................................14
Procedure for TopControl Type 8630...........................................................................................................14
Procedure for SideControl Type 1067 .........................................................................................................15
Pneumatic installation for TopControl Type 8630 ................................................................................................17
Fluid connections of the TopControl Continuous ......................................................................................17
Electrical connection - multipole connectors (TopControl Type 8630) ...........................................................18
Marking of the multipole plugs or sockets and the contacts ...................................................................18
Output signals for SPS (circular plug M 16) ..............................................................................................19
Operating voltage (circular plug M 12) ........................................................................................................19
Inductive proximity switches (circular socket M8) .....................................................................................19
Process value (circular plug M 8) ..................................................................................................................20
2702 - 3
Contents
Electrical connection - terminals for cable bushing (TopControl Type 8630) ...............................................21
Connection PCB of the TOPControl Continuous with screw terminals and jumpers ......................21
Terminal configuration with cable bushings.................................................................................................21
Choice of binary outputs or process value input........................................................................................22
Setting the inductive proximity switches (option for TopControlTyp 8630) ...................................................23
Opening the hosing of the TOPControl Continuous .................................................................................23
Positioning the inductive proximity switches ...............................................................................................23
Electrical connection - terminal for cable bushing (SideControl Type 1067) ................................................24
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Pin assignment ...................................................................................................................................................24
maintenance anD servicinG of the valve .................................................................................. 25
Faults ...............................................................................................................................................................................26
Replacement of the control plug with TopControl Typ 8630 .............................................................................26
Demounting the actuator .................................................................................................................................26
Replacement of the control plug ....................................................................................................................27
Mounting the actuator.......................................................................................................................................27
Replacement of the control plug wtih SideControl Typ 1067 ...........................................................................28
Demounting the actuator .................................................................................................................................28
Replacement of the control plug ....................................................................................................................29
Mounting the actuator.......................................................................................................................................30
Spare parts sets type 2702 .......................................................................................................................................31
4 - 2702
General notes
General Notes
SYMBOLS ........................................................................................................................................................................6
INTENDED USE ............................................................................................................................................................6
GENERAL SAFETY NOTES .................................................................................................................................... 6
CONTACT ADDRESSES .........................................................................................................................................7
english
WARRANTY .....................................................................................................................................................................7
TRANSPORT, STORAGE .......................................................................................................................................... 7
DISPOSAL .......................................................................................................................................................................8
INFORMATION IN INTERNET ................................................................................................................................ 8
2702 - 5
General notes
SYMBOLS
The following symbols are used in these operating instructions:
marks a word step that you must carry out.
DANGER!
WARNING!
english
CAUTION!
ATTENTION!
NOTE
INTENDED USE
means an immediate danger. If it is not avoided, death or serious injury (maiming)
will result.
means a possibly dangerous situation. If it is not avoided, death or serious injury may
result.
means a possibly dangerous situation. If it is not avoided, light injury may result. May also
be used for warnings regarding property damage.
means a possibly damaging situation. If it is not avoided, the product or its surroundings
may be damaged.
marks important additional information, tips and recommendations.
This device may only be used in combination with third-party devices and components recommended or
approved by Bürkert.
The proper function and safe operation of this product depends on professional transportation, professional
storage, installation, and mounting, as well as on careful operation and maintenance.
In order for the device to function perfectly and have a long service life, you must observe the information given in these operating instructions and comply with the operating conditions and the permissible data which
is specified in the „Technical Data“ chapter of these instructions.
On non-observances of these notes and unauthorized interference with the device, we will refuse all liability
and the warranty on device and accessories will become void!
The device is only to be used as a process regulation valve. Any other use is not considered the intended
use. Bürkert is not responsible for any damages resulting from such use. The user bears all risk.
GENERAL SAFETY NOTES
DANGER!
WARNING!
• Switch off the supply voltage in all cases before intervening in the system!
• Note that in systems under pressure, piping and valves may not be loosened!
• Observe the current regulations on accident prevention and safety during operation and
maintenance of the device!
6 - 2702
General notes
ATTENTION!
• Keep to standard engineering rules in planning the use of and operating the device!
• Installation and maintenance work are only allowed by specialist personnel using suitable tools!
• Take suitable precautions to prevent inadvertent operation or damage by unauthorized
action!
• Make sure that after an interruption to the electrical or pneumatic supply, the process
starts up again ina well-defined, controlled manner!
• For the electrical part, observe the safety instructions in the operating manual of the
TopControl, SideControls.
• Failure to observe this operating manual and its operating instructions as well as unauthorized tampering with the device release us from any liability and also invalidate the
warranty covering the devices and accessories!
CONTACT ADDRESSES
Germany
Bürkert Fluid Control System
Sales Center
english
Christian-Bürkert-Str. 13-17
D-74653 Ingelfingen
Tel.: +49 (0) 7940 10 91-111
Fax: +49 (0) 7940 10 91 -448
E-mail: info@de.buerkert.com
International
Contact addresses can be found on the final pages of these printed operating instructions.
And also on the internet at: www.burkert.com
WARRANTY
The warranty is only valid if the device is used as intended in accordance with the specified application conditions.
ATTENTION!
The warranty extends only to defects in the delivered Type 2702 valve with pneumatic drive
and the TopControl or SideControl. We accept no liability for any kind of collateral damage
which can occur due to failure or malfunction of the device.
TRANSPORT, STORAGE
NOTE
Transportation and storage of the product should only be done in the original packing.
Storage temperature -10 °C ... +60 °C
2702 - 7
General notes
DISPOSAL
CAUTION!
Environmental danger!
When disponsing of the appliance, observe the national standards for refuse disposal.
INFORMATION IN INTERNET
All Operating manuals and Datasheets for the Type 2702 you can find under: www.burkert.com - Technical
data
english
www.burkert.com → Documentation
8 - 2702
Technical data
Technical DaTa
CONSTRUCTION OF THE CONTROL VALVE ............................................................................................ 10
MEDIA ............................................................................................................................................................................. 10
KV VALUE .................................................................................................................................................................... 11
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2702 - 9
TECHNICAL DATA
CONSTRUCTION OF THE CONTROL VALVE
2/2-way piston actuated valve with control plug and angle seat body
Control function A (closed by spring force)
Normally close
Control function B (open in rest position)
Normally open
hsilgne
Actuator material: PA (polyamide) or PPS
Body material: stainless steel 316L
Seal materials: steel/steel (1.4571) or PTFE/steel
MEDIA
Liquid and gaseous media that do not attack the body and seal materials.
Control medium Quality classes according to DIN ISO 8573-1
Dust content Class 5: Max. particle size 40 µm; max. particle density 10 mg/m
Water content Class 3: Max. pressure dew point -20 °C or min. 10 degrees below the
lowest operating temperature
3
Oil content Class 5: Max. 25 mg/m
Class 3: Max. 1 mg/m
Note: Higher demands placed on the positioner must be observed!
NOTE
Pilot pressure
Actuator size 80 (F) 5.5 - 10 bar
Actuator size 100 (G) 5.5 - 7 bar
The permitted operating pressure and temperature of the medium are listed on the rating
plate and in the following tables. With regard to the permissible seat leakage, the values
given in DIN EN 1349 are complied with,whereby for the steel/steel seal, leakage class IV
and for the PTFE/steel leakage class VI apply.
in conjunction with Bürkert positioners
3
in conjunction with SIDE Control Type 8635
3
Fluid pressure
10 - 2702
Actuator size F DN 15 0 - 16 bar
Actuator size F DN 20 0 - 16 bar
Actuator size F DN 25 0 - 16 bar
Actuator size F DN 32 0 - 15 bar
Actuator size G DN 40 0 - 12,5 bar
Actuator size G DN 50 0 - 7,2 bar
KV VALUE
Type 2702 DN 15
Stroke % Stroke [mm] Kv [m3/h]
5 0.6 0.23
10 1.2 0.24
20 2.4 0.26
30 3.6 0.35
40 4.8 0.7
50 6.0 1.85
60 7.2 2.9
70 8.4 3.5
80 9.6 4.0
90 10.8 4.3
100 12.0 4.5
Type 2702 DN 20
TECHNICAL DATA
english
Stroke %
Stroke % Stroke [mm] Kv [m3/h]
5 0.9 0.30
10 1.8 0.33
20 3.6 0.42
30 5.4 0.7
40 7.2 2.85
50 9.0 5.3
60 10.8 6.6
70 12.6 7.5
80 14.4 8.2
90 16.2 8.6
100 18.0 9.0
Type 2702 DN 25
Stroke % Stroke [mm] Kv [m3/h]
5 1.0 0.39
10 2.0 0.41
20 4.0 0.60
30 6.0 1.25
40 8.0 4.5
50 10.0 8.5
60 12.0 10.5
70 14.0 12.2
80 16.0 13.5
90 18.0 14.2
100 20.0 15.0
Stroke %
Stroke %
2702 - 11
Technical DaTa
Type 2702 DN 32
Stroke % Stroke [mm] Kv [m3/h]
5 1.0 0.55
10 2.0 0.65
20 4.0 0.95
30 6.0 1.5
40 8.0 4.0
50 10.0 9.3
60 12.0 13.8
70 14.0 16.5
80 16.0 18.8
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90 18.0 21.0
100 20.0 23.0
Type 2702 DN 40
Stroke %
Stroke % Stroke [mm] Kv [m3/h]
5 1.3 0.65
10 2.6 0.85
20 5.2 1.5
30 7.8 5.0
40 10.4 14.0
50 13.0 20.0
60 15.6 25.0
70 18.2 27.0
80 20.8 30.0
90 23.4 33.0
100 26.0 35.0
Type 2702 DN 50
Stroke % Stroke [mm] Kv [m3/h]
5 1.3 1.0
10 2.6 1.3
20 5.2 2.0
30 7.8 5.0
40 10.4 16.0
50 13.0 27. 0
60 15.6 34.0
70 18.2 41.0
80 20.8 45.0
90 23.4 49.0
100 26.0 53.0
Stroke %
12 - 2702
Stroke %
Commissioning
Commissioning
INSTALLATION OF THE VALVE ......................................................................................................................... 14
Procedure for TopControl Type 8630 ......................................................................................................................14
Procedure for SideControl Type 1067 ....................................................................................................................15
PNEUMATIC INSTALLATION FOR TOPCONTROL TYPE 8630 ...................................................17
Fluid connections of the TopControl Continuous .................................................................................................17
ELECTRICAL CONNECTION - MULTIPOLE CONNECTORS
(TOPCONTROL TYPE 8630)................................................................................................................................ 18
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Marking of the multipole plugs or sockets and the contacts ..............................................................................18
Output signals for SPS (circular plug M 16) ..........................................................................................................19
Operating voltage (circular plug M 12) ...................................................................................................................19
Inductive proximity switches (circular socket M8) .................................................................................................19
Process value (circular plug M 8) .............................................................................................................................20
ELECTRICAL CONNECTION - TERMINALS FOR CABLE BUSHING
(TOPCONTROL TYPE 8630)................................................................................................................................ 21
Connection PCB of the TOPControl Continuous with screw terminals and jumpers ..................................21
Terminal configuration with cable bushings ............................................................................................................21
Choice of binary outputs or process value input ...................................................................................................22
SETTING THE INDUCTIVE PROXIMITY SWITCHES
(OPTION FOR TOPCONTROL TYPE 8630) ................................................................................................. 23
Opening the housing of the TOPControl Continuous..........................................................................................23
Positioning the inductive proximity switches ..........................................................................................................23
ELECTRICAL CONNECTION - TERMINAL FOR CABLE BUSHING
(SIDECONTROL TYPE 1067) .............................................................................................................................. 24
Pin assignment ..............................................................................................................................................................24
2702 - 13
Commissioning
INSTALLATION OF THE VALVE
CAUTION!
Use of the incorrect lubricant causes contamination!
For special applications such as for oxygen and analysis, use only the approved lubricants.
May be installed in any position, but preferably with the actuator above.
Observe the flow direction - general rule for control valves: flow direction: Below seat
Clean the piping of contamination!
Before connecting the valve body, take care that piping is aligned!
In the case of weld-end bodies, be sure to remove the actuator before welding.
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Procedure for TopControl Type 8630
1. Remove the electrical and pneumatic supplies from the TopControl.
2. Pull off the pneumatic hose between TopControl and actuator at
control connection of actuator.
3. Control function A:
Pressurize the lower pilot air port of the actuator with compressed air
(6 bar),
so that the plug is lifted from the valve seat and is not damaged.
Control function B:
With control function B, no compressed air must beapplied for this
purpose.
Top Control
actuator
lower
pilot air
port
threaded
nipple
4. Remove the actuator in the open valve position by unscrewing the
nipple from the valve body.
5. Before reinstalling the actuator (in the open valve position), grease the
nipple thread with stainless steel lubricant,
e. g. Klüberpaste UH1 96-402 from company Klüber.
6. Replace the graphite seal.
7. After tightening the threaded nipple, align the pilot air ports by turning
the actuator.
ATTENTION!
NOTE
The valve must be for this in the opened position.
When using in an aggressive environment, you are advised to connect pneumatic hoses to all
free control connections and place their other ends in a neutral atmosphere.
valve body
14 - 2702
Commissioning
Procedure for SideControl Type 1067
Dismount the piston actuator as described below. You will avoid damage to the gaskets because the piston
will be brought into the upper position.
Connect compressed air at 4.5 to 6 bar to P (1).
Remove the blowout mouthpiece.
Unscrew the 4 screws.
Open the cover (2).
The 2 red switches for emergency manual actuation
(3) are located next to the terminal strip.
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They are in the idle position when the arrow is parallel to the terminal strip.
Turn the 2 switches carefully 90 degrees in the
clockwise direction (in either order) (4a).
The piston moves into the upper position and the
plug is separated from the valve seat.
Turn only the upper switch to the idle position
(4b).
The piston stays in the upper position even after the
compressed air is switched off.
2702 - 15
Commissioning
english
Remove the valve body from the piston actuator.
The plug is now in the upper position.
This means the gasket will not be damaged.
Weld the valve body.
Clean the valve body carefully.
plug
RECOMMENDATION
Mount the valve body with a new sealing ring between the valve body and the piston actuator.
Turn the lower switch back into the idle position.
The piston actuator is bled and the spring closes the
valve.
NOTE
16 - 2702
This procedure causes air to be trapped under the spring-loaded piston.
Normally the air will escape slowly.
After 10 hours, however, this procedure should be completed.
PNEUMATIC INSTALLATION FOR TOPCONTROL TYPE 8630
The control valve is driven by compressed air via the TopControl.
Remove the protective caps from the connectors on the TopControl and the valve.
Apply the supply pressure to port ”1”.
The supply pressure necessary for complete opening or closing of the valve may lie between the minimum
values of 3 and 6 bar, depending on the actuator. The permissible maximum value for the control pressure is
7 bar. The values for the pressure supply are given under p
Attach the exhaust line or silencer to port ”3”.
on the rating plate of each control valve.
Pilot
Commissioning
Control medium: instrument air, class 3 to DIN ISO 8573-1
Fluid connections of the TopControl Continuous
Remove the protective caps from the valve
and the TOPControl Continuous.
Apply the supply pressure to connection “1“
(3..7 bar, instrument air, free from oil, water
and dust)
Attach the exhaust line or silencer to
connection „3“
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NOTE
Maintain the applied supply pressure, without fail, at least 0.5 - 1 bar over that required to
bring the pneumatic actuator into the end position. This assures that the control behaviour in
the upper region of the stroke will not be significantly affected negatively if the pressure difference is too small.
Keep variations in the supply pressure as low as possible during operation (max. ± 10%).
With larger variations, the controller parameters calibrated with the AUTOTUNE function will
not be optimal.
2702 - 17
Commissioning
ELECTRICAL CONNECTION - MULTIPOLE CONNECTORS
(TOPCONTROL TYPE 8630)
ATTENTION!
NOTE
english
For connection to the technical earth (ground) (TE), a threaded stud with nut is provided on
the connection module. To assure electromagnetic compatibility (EMC), connect this stud to
a suitable earthing (grounding) point using as short a cable as possible (max. 30 cm).
Use of the 4 - 20 mA setpoint input
If the voltage supply of a TOPControl device fails in a row of such devices connected in
series, the input of the failed device will become high-impedance. This will cause the 4 -
20 mA standard signal to fail. If this occurs, please contact Bürkert Service directly.
With Profibus DP or DeviceNet:
The markings of the multipole plugs and sockets, and the contacts are to be found in the
respective chapters.
Marking of the multipole plugs or sockets and the contacts
M16
M12
M8
Output signals
to SPS
M8
Operating voltage
18 - 2702
TE
Process value Initiators (inductive proximity switches)
Output signals for SPS (circular plug M 16)
PIN Allocation External connection/signal level
A
Setpoint GND
B
Setpoint + (0/4..20 mA or 0..5/10 V)
C
Analog position feedback +
D
Analog position feedback GND
E
Binary output 1
F
Binary output 2
G
Binary output GND
H
Binary input +
J
Binary input GND
K
not connected
L
not connected
B
A
C
D
E
F
G
H
J
+ (0/4...20 mA or 0..5/10 V)
completely isolated electrically
GND
+ (0/4...20 mA or 0...5/10 V)
completely isolated electrically
GND
24 V / 0 V
24 V / 0 V
24 V / 0 V
+ 0 ... 5 V (log. 0)
10 ... 30 V (log. 1)
GND
Commissioning
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M
not connected
Operating voltage (circular plug M 12)
PIN Allocation External connection
1
2
3
4
+ 24 V
not connected
GND
not connected
1
3
24 V DC ± 10 %
max. residual ripple 10 %
Inductive proximity switches (circular socket M8)
PIN Allocation Signal level
1
Proximity switch 1 +(NO)
2
Proximity switch 1 GND
3
Proximity switch 2 +(NO)
4
Proximity switch 2 GND
+24 V DC
GND
+24 V DC
GND
S1
1
2
open / 24 V
GND
S2
3
4
open / 24 V
GND
2702 - 19
Commissioning
Process value (circular plug M 8)
Input type * PIN Allocation Jumper ** External connection
4 ... 20 mA
- internal
supply
1
+ 24 V supply transmitter
2
Output transmitter
3
GND
4
bridge to GND
english
4 ... 20 mA
- external
supply
Frequency
- internal
supply
Frequency
- external
supply
Pt-100
(see note
below)
1
not connected
2
Process actual +
3
not connected
4
Process actual -
1
+ 24 V - supply sensor
2
Clock input +
3
Clock input - (GND)
4
not connected
1
not connected
2
Clock input +
3
Clock input -
4
not connected
1
not connected
2
process actual 1 (current supply)
3
process actual 3 (GND)
4
process actual 2 (compensation)
2
4
1
2
3
2
3
2
3
4
4 ... 20 mA
GND
+24 V
Clock +
Clock -
Clock +
Clock -
Pt 100
* May be set via software (section Procedure for specifying the basic settings)
** The jumper is situated on the connection board of the TOPControl Continuous (see next
page)
NOTE
For line compensation reasons, connect sensor Pt-100 via 3 conductors. PIN 3 and PIN 4 must
be bridged at the sensor.
20 - 2702
Commissioning
ELECTRICAL CONNECTION - TERMINALS FOR CABLE BUSHING
(TOPCONTROL TYPE 8630)
ATTENTION!
NOTE
For connection to the technical earth (ground) (TE), a threaded stud with nut is provided
on the connection module. To assure electromagnetic compatibility (EMC), connect this
stud to a suitable earthing (grounding) point using as short a cable as possible
(max. 30 cm).
Use of the 4 - 20 mA setpoint input
If the voltage supply of a TOPControl Continuous device fails in a row of such devices connected in series, the input of the failed device will become high-impedance. This will cause the
4 - 20 mA standard signal to fail. If this occurs, please contact Bürkert Service directly.
Connection PCB of the TOPControl Continuous with screw terminals and
jumpers
english
Remove the cover with the cable bushings to gain access
to the screw terminals. This is done by unscrewing the
4 self-tapping screws.
Terminal configuration with cable bushings
Terminal Allocation External connection
1
2
3
4
5
6
Setpoint +
Setpoint GND
Analog position feedback +
Analog position feedback GND
Operating voltage +
Operating voltage GND
1
2
3
4
5
6
+ (0/4 ... 20 mA or 0 ... 5/10 V)
GND
+ (0/4 ... 20 mA or 0 ... 5/10 V)
completely isolated electrically
GND
24 V DC ± 10 %
max. residual ripple 10 %
2702 - 21
Commissioning
Choice of binary outputs or process value input
Select using the jumpers:
2 binary outputs (see terminal Allocation when binary outputs selected) or
Process value input (see terminal Allocation when process value input selected)
Terminals 7 to 10 are connected to the corresponding signals.
Terminal allocation on selection of binary outputs
Jumper Terminal Allocation External connection
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7
8
9
10
Terminal allocation on selection of process value input:
The input type is set via the configuration menu (see Procedure for specifying the basic settings).
Binary output 1
Binary output 1
Binary output 2
Binary output 2
10
7
8
9
24 V / 0 V NC / NO
GND
24 V / 0 V NC / NO
GND
Input type* Jumper Termianl Allocation External connection
10
10
10
7
8
9
7
8
9
8
9
8
8
9
4 ... 20 mA
internal
supply
Frequency
internal
supply
4 ... 20 mA
external
supply
Frequency
external
supply
Pt-100
(see
note
below)
10
10
10
10
10
7
8
9
7
8
9
7
8
9
7
8
9
7
8
9
+ 24 V input transmitter
Output transmitter
Brigde to GND
GND
+ 24 V supply sensor
Clock input +
not connected
Clock input - (GND)
not connected
Process actual +
Process actual not connected
not connected
Clock input +
not connected
Clock input -
not connected
Process actual 1 (current supply)
Process actual 2 (compensation)
Process actual 3 (GND)
+24 V
Clock +
Clock - (GND)
+ (4 ... 20 mA)
Clock - (GND)
Clock +
Clock - (GND)
Pt-100
NOTE
For reasons of line compensation, connect the Pt 100 sensor over 3 conductors.
Be sure to bridge terminals 9 and 10 at the sensor.
Terminal allocation with binary outputs
Terminal Allocation External connection
11 12Binary input +
Binary input GND
22 - 2702
11
12
+ 0 ... 5 V (log. 0)
10 ... 30 V (log. 1)
GND
SETTING THE INDUCTIVE PROXIMITY SWITCHES
(OPTION FOR TOPCONTROL TYPE 8630)
Commissioning
CAUTION!
Danger of injury from electrical voltage in the open TopControl.
Switch the operating power off to the TopControl before opening!
Opening the housing of the TOPControl Continuous
Remove any lead seals or fastenings present between cover and housing.
Turn the cover anticlockwise and lift it off.
Positioning the inductive proximity switches
The inductive proximity switches are positioned vertically with one adjusting screw each:
Turning clockwise
causes upward adjustment
Turning anticlockwise
causes downward adjustment
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CAUTION!
Caution! Plug connectors may be damaged or loosened.
Plug connectors may be damaged or loosened.
On adjusting the height of the inductive proximity switches, make sure that adjacent flexes
are not pulled (e.g. by getting hooked in the proximity switches).
Screw to adjust the lower proximity switch
Screw to adjust the upper proximity switch
2702 - 23
Commissioning
ELECTRICAL CONNECTION - TERMINAL FOR CABLE BUSHING
(SIDECONTROL TYPE 1067)
Pin assignment
Signal input
Jumper position
english
- either for target position
(operation as positional control)
- or for process target value
(operation as process controller)
- input for actual process value
Binary input
Contact
Output
(Option)
Suppply voltage
Input U1 (Unit signal 0 ... 10 V) Input impedance 200 kW
Input I1 (Unit signal 0/4 ... 20 mA) Input impedance > 175 W
Input I2 (Unit signal 4 ... 20 mA) Input impedance > 175 W
ATTENTION!
To ensure electromagnetic compatibility (EMC resistance), the interior M4 threading of the
armature must be connected to ground with the shortest possible cable.
24 - 2702
M4-internal thread
Maintenance and Servicing of the valve
Maintenance and servicing of the valve
FAULTS .......................................................................................................................................................................... 26
REPLACEMENT OF THE PLUG WITH TOPControl TYPE 8630 .................................................. 26
Demounting the actuator .............................................................................................................................................26
Replacement of the plug .............................................................................................................................................27
Mounting the actuator ..................................................................................................................................................27
REPLACEMENT OF THE PLUG WITH SIDEControl TYPE 1067 ................................................ 28
Demounting the actuator .............................................................................................................................................28
Replacement of the plug .............................................................................................................................................29
Mounting the actuator ..................................................................................................................................................30
SPARE PARTS SETS TYPE 2702 ..................................................................................................................... 31
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2702 - 25
Maintenance and Servicing of the valve
FAULTS
Possible problems with control are listed in the operating manual of the TopControl.
ATTENTION!
Repairs to the actuator may only be carried out in the factory. Contact your Bürkert branch
or ourCustomer Service directly:
Bürkert Fluid Control System
Sales Center
Chr.-Bürkert-Str. 13-17
D-74653 Ingelfingen
Tel.: +49 (07940) 10 91-111
Fax: +49 (07940) 10 91-448
E-Mail: info@de.buerkert.com
english
REPLACEMENT OF THE PLUG WITH TOPControl TYPE 8630
CAUTION!
On the fluidic side is it possible to exchange the plug if it becomes worn or damaged. For this purpose the
actuator must be disassembled from the valve body.
Use of the incorrect lubricant causes contamination!
For special applications such as for oxygen and analysis, use only the approved lubricants.
Demounting the actuator
→ Remove the electrical and pneumatic supplies from the TopControl.
→ Pull off the pneumatic hose between TopControl and actuator at control
connection of actuator
Control function A:
→ Pressurize the lower pilot air of the actuator with compressed air
(6 bar), so that the plug is lifted from the valve seat and is not
damaged.
Control function B:
→ With control function B, no compressed air must be applied for this
purpose.
→ Remove the actuator in the open valve position by unscrewing the nipple
from the valve body.
threaded nipple
26 - 2702
Replacement of the plug
Maintenance and Servicing of the valve
ATTENTION!
→ Knock out the dowel pin with a suitable driver.
Driver diameter:
up to DN 32 ∅ 4 mm
from DN 40 ∅ 5 mm
→ Pull off the plug with aid of two metal strips of equal height that are clam-
ped to the left and right of the spindle between the plug and the threaded
nipple of the actuator. To pull off the plug, apply compressed air (approx. 6
bar) to the lower pilot air port of the actuator.
→ Push the new plug over the end of the spindle.
→ Align the bores.
Do not damage the sealing surface or the control contour!
Mounting the actuator
→ Support the plug at its cylindrical part with the aid of a V-block or the like.
→ Carefully knock the dowel pin into the bore with a hammer.
Dowel pin
english
Plug
→ Bring the dowel pin into a central position relative to the spindle axis (knock in as far as the end of the
recess).
→ Before reinstalling the actuator, grease the nipple thread with stainless steel lubricant, e.g.Klüberpaste
UH1 96-402 from company Klüber and replace the graphite seal.*
→ After tightening the threaded nipple, orient the control connection by turning the actuator.*
ATTENTION!
* The valve must be for this in the opened position.
2702 - 27
Maintenance and Servicing of the valve
REPLACEMENT OF THE PLUG WITH SIDEControl TYPE 1067
CAUTION!
Use of the incorrect lubricant causes contamination!
For special applications such as for oxygen and analysis, use only the approved lubricants.
Demounting the actuator
Dismount the piston actuator as described below. You will avoid damage to the gaskets because the piston
will be brought into the upper position.
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Connect compressed air at 4.5 to 6 bar to P (1).
Remove the blowout mouthpiece.
Unscrew the 4 screws.
Open the cover (2).
The 2 red switches for emergency manual actuation (3)
are located next to the terminal strip.
They are in the idle position when the arrow is parallel to
the terminal strip.
Turn the 2 switches carefully 90 degrees in the
clockwise direction (in either order) (4a).
The piston moves into the upper position and the plug is
separated from the valve seat.
Turn only the upper switch to the idle position (4b).
The piston stays in the upper position even after the
compressed air is switched off.
28 - 2702
Maintenance and Servicing of the valve
Remove the valve body from the piston actuator.
The plug is now in the upper position.
This means the gasket will not be damaged.
Weld the valve body.
english
Plug
Replacement of the plug
ATTENTION!
→ Knock out the dowel pin with a suitable driver.
Driver diameter:
up to DN 32 ∅ 4 mm
from DN 40 ∅ 5 mm
→ Pull off the plug with aid of two metal strips of equal height that are clam-
ped to the left and right of the spindle between the plug and the threaded
nipple of the actuator. To pull off the plug, apply compressed air (approx. 6
bar) to the lower pilot air port of the actuator.
Do not damage the sealing surface or the control contour
at the plug!
→ Push the new plug over the end of the spindle.
→ Align the bores.
Dowel pin
Plug
2702 - 29
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