Type 2
 030, 2031, 2031 K, 2032,
2033, 2037

Replacement of the seal set
Conversion of the control function
Wechsel von Dichtungssätzen
Umbau der Steuerfunktionen
Remplacement du jeu de joints
Transformation de la fonction de commandeService ManualServiceanleitung
Service ManuelWe reserve the right to make technical changes without notice.
Technische Änderungen vorbehalten.
Sous réserve de modifications techniques.
© 2017 Bürkert Werke GmbH & Co. KG
Operating Instructions 1705/00804161_EUml_06 / Original DE

Type 2030

Content1Service manual..................................................................................................................................5
1.1

Symbols.........................................................................................................................................52

Basic safety instructions............................................................................................................63

General information.......................................................................................................................7
3.1	Contact addresses........................................................................................................................7
3.2

Warranty........................................................................................................................................7

3.3	Information on the Internet...........................................................................................................7
3.4	Auxiliary materials.........................................................................................................................7
4	Exploded drawing............................................................................................................................85	Replacement of the diaphragm................................................................................................10
5.1	Fastening types for diaphragms.................................................................................................10
5.2	Replacement of the diaphragm for control function A..............................................................11
5.3	Replacement of the diaphragm for control functions B and I..................................................11
5.4	Replacing PTFE diaphragms with EPDM diaphragms..............................................................12
5.5	Tightening torques for body screws..........................................................................................13
6	REPLACING the seal set.................................................................................................................14
6.1	Replacement of the seal set for control function A...................................................................15
6.2	Replacement of the seal set for control functions B and I.......................................................18
6.3	Tightening torques......................................................................................................................20
6.3.1

Tightening torques for the nut.....................................................................................20

6.3.2

Tightening torques for the cover.................................................................................21

7	Conversion of the control function....................................................................................22
7.1	Conversion of control function A to B........................................................................................22
7.2	Conversion of control function A to I.........................................................................................25
8	Installation tools..........................................................................................................................27
8.1	Installation wrench......................................................................................................................27
8.2	Assembly sleeves.......................................................................................................................28

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Type 2030
﻿

9	Ordering the parts........................................................................................................................29
9.1

Seal set........................................................................................................................................29

9.2	Conversion kit.............................................................................................................................29
9.3	Diaphragm...................................................................................................................................30

4englishType 2030
Service manual1Service manual

The service instructions describe the procedure for:•• Replacement of diaphragm and seal set of Type 2030, 2031, 2031 K, 2032, 2033 and 2037.
•• Conversion of the control function of process valves of Type 2030, 2031, 2031 K, 2032, 2033 and 2037.
Keep these instructions in a location which is easily accessible to every user and make these instructions
available to every new owner of the device.
Important safety information.
▶▶Carefully read these instructions.
▶▶Persons, who work on the device, must read and understand these instructions.
A detailed description of the device can be found in the operating instructions on the Internet at:
www.burkert.com

1.1

Symbols
Danger!

Warns of an immediate danger!
▶▶Failure to observe the warning will result in fatal or serious injuries.

Warning!
Warns of a potentially dangerous situation!
▶▶Failure to observe the warning may result in serious injuries or death.

Caution!
Warns of a potential danger!
▶▶Failure to observe the warning may result in a moderate or minor injury.

Note!
Warns of damage!
▶▶Failure to observe the warning may result in damage to the device or other equipment.
Indicates important additional information, tips and recommendations.

Refers to information in these operating instructions or in other documentation.
Designates an instruction which you must follow to prevent a hazard.
Designates a procedure which you must carry out.

5

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Basic safety instructions

2

Basic safety instructions

These safety instructions do not consider any contingencies or incidents which occur during assembly,
operation and maintenance. The operator is responsible for observing the location-specific safety regulations,also with reference to the personnel.

Risk of injury from high pressure and discharge of medium.
▶▶Before working on the system or device, switch off the pressure and vent or drain lines.
Risk of injury from electric shock.
▶▶Before working on the device or system, switch off the power supply and secure to prevent reactivation.
▶▶Observe applicable accident prevention and safety regulations for electrical equipment.
General hazardous situations.
To prevent injury, ensure the following:▶▶Operate the device only in perfect state and in consideration of the operating instructions.
▶▶Do not transport, install or remove heavy devices without the aid of a second person and using suitable
auxiliary equipment.
▶▶Do not make any changes to the device and do not subject it to mechanical stress.
▶▶Secure device or system to prevent unintentional activation.
▶▶Only trained technicians may perform installation and maintenance work.
▶▶Install the device according to the regulations applicable in the country.
▶▶After an interruption in the power supply, ensure that the process is restarted in a controlled manner.
▶▶Observe the general rules of technology.

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General information

3

General information

3.1

Contact addresses
Germany
Bürkert Fluid Control Systems
Sales Center
Christian-Bürkert-Str. 13-17
D-74653 IngelfingenTel. + 49 (0) 7940 - 10-91 111
Fax + 49 (0) 7940 - 10-91 448
Email: info@burkert.com

International
Contact addresses can be found on the final pages of the printed operating instructions.
And also on the Internet at:
www.burkert.com

3.2

Warranty

The warranty is only valid if the device is used as intended in accordance with the specified application conditions.

3.3

Information on the Internet

The operating instructions and data sheets for Bürkert products can be found on the Internet at:
www.burkert.com

3.4

Auxiliary materials

The following auxiliary materials are recommended in these instructions for carrying out the conversion andrepairs:
Type of auxiliary material

Auxiliary materials

Manufacturer's specifications

LubricantLagermeister SL

Fuchs Lubritech GmbHwww.fuchs-lubritech.deLubricant

Amblygon TA 30/1

Klüber Lubrication München SE & Co. KG
www.klueber.deLiquid adhesive

Loctite 274

Henkel AG & Co. KGaA
www.loctite.de7

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Exploded drawing

4

Exploded drawing
Control function A (CFA),
Closed in rest position by spring force

20
19

15
29

18

14

12

13

11

8
7
9

Control function B (CFB),Open in rest position by spring force

20
15
29

18

14
13
8

17

7

9
10

10
2

19

6
2

1

4

1

4

5

16

5

16

21

22

21

22

8

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23

23

24

24

Type 2030
Exploded drawing

Control function I (CFI),
double-acting

20
15
29

19
18

14
13
8
7

17
9
10

2

4

1

5

16

21

22

23
24

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Replacement of the diaphragm

5

Replacement of the diaphragm
Danger!

Risk of injury from high pressure and discharge of medium.
It is dangerous to remove the device under pressure due to the sudden pressure release or discharge of
medium. During re-installation slackened body screws may cause a discharge of medium.
▶▶Before removal, switch off the pressure and vent and drain the lines.
▶▶During re-installation check tightening torque of the body screws.
This chapter describes the exact procedure for replacing the diaphragm.
ExampleUpper pilot air port
(for control function B and I)
Lower pilot air port
(for control function A and I)

Diaphragm

Valve body

4 body screws
Identification tab

5.1

Fastening types for diaphragms
Fastening types for diaphragms

Diaphragm size
8
15
20

PTFE

EPDM / FKM / laminated PTFE

Diaphragm buttoned

Diaphragm buttoned

Diaphragm with bayonet catch

Diaphragm with bayonet catch (BC)1)

Diaphragm with bayonet catch

Diaphragm screwed in

25
32
40
50
65
Table 1:
10

Fastening types for diaphragms

1) Connection up to middle of 2015: Diaphragm buttoned

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Replacement of the diaphragm

5.2

Replacement of the diaphragm for control function A→→Clamp the valve body 22 into a holding device (applies only to valves not yet installed).
→→Pressurize lower pilot air port with compressed air (value as indicated on the type label).
→→Loosen body screws 24 in diagonal pairs and remove actuator together with diaphragm from the valve
body.

→→Detach or unscrew damaged diaphragm 21 .

If attachment is with a bayonet catch, remove the diaphragm by rotating it through 90°.
If the diaphragm size is 25 to 50, also observe chapter “5.4”.

→→Depending on the type of diaphragm, install the new diaphragm 21 in the actuator 1 .
→→Align diaphragm 21 . Identification tab perpendicular to the direction of flow.
→→Place actuator back on the valve body.
→→Lightly tighten body screws 24 in diagonal pairs until the diaphragm is positioned between the valve
body and actuator. Do not fully tighten body screws yet.

→→Actuate the diaphragm valve twice to position the diaphragm correctly.
→→Switch off control pressure (valve position closed).
→→Tighten body screws 24 in diagonal pairs up to the permitted tightening torque. Observe the tightening
torques in chapter “5.5”.

5.3

Replacement of the diaphragm for control functions
B and I→→Clamp the valve body 22 into a holding device (applies only to valves not yet installed).
→→Loosen body screws 24 in diagonal pairs and remove actuator together with diaphragm from the valve
body.

→→Detach or unscrew damaged diaphragm 21 .

If attachment is with a bayonet catch, remove the diaphragm by rotating it through 90°.
If the diaphragm size is 25 to 50, also observe chapter “5.4”.

→→Depending on the type of diaphragm, install the new diaphragm 21 in the actuator 1 .
→→Align diaphragm 21 . Identification tab perpendicular to the direction of flow.
→→Place actuator 1 back on the valve body.
→→Lightly tighten body screws 24 in diagonal pairs until the diaphragm is positioned between the valve
body and actuator. Do not fully tighten body screws yet.

→→Pressurize upper pilot air port with compressed air (value as indicated on the type label).
For control functions B and I the pressure on the upper connection closes the valve.

→→Actuate the diaphragm valve twice to position the diaphragm correctly.

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Replacement of the diaphragm→→Pressurize upper pilot air port with compressed air (valve position closed).
→→Tighten body screws 24 in diagonal pairs up to the permitted tightening torque. Observe the tightening
torques in chapter “5.5”.

→→Switch off control pressure.

5.4

Replacing PTFE diaphragms with EPDM diaphragms

Diaphragm size 8:→→Detach PTFE diaphragm and press in new EPDM diaphragm.
The replacement described here for diaphragm sizes 15 to 50 is possible only for actuators whichhave been manufactured since the middle of 2015.
Diaphragm sizes 15 and 20:→→Undo PTFE diaphragm bayonet and insert new EPDM diaphragm.
Diaphragm sizes 25 to 50:

Pressure piece
InsertFigure 1:

Fitting the insert into the pressure piece→→Undo PTFE diaphragm bayonet.
→→Fit the insert into the pressure piece.
→→Insert and screw in EPDM diaphragm.

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englishPressure piece with insert fitted inType 2030
Replacement of the diaphragm

5.5

Tightening torques for body screws
Tightening torques [Nm]VS, PP, PVC, PVDF, VG

VA and VP

Diaphragm size

EPDM / FKM

PTFE / advanced
PTFE / laminatedPTFE

EPDM / FKM

PTFE / advanced
PTFE / laminated
PTFE

8

2

2.5

2.5

2.5

15

3.5

4

3.5

4

20

4

4.5

4

4.5

25

5

6

7

8

32

6

8

8

10

Table 2:

40

8

10

12

15

50

12

15

15

20

65

20

30

-

-

Tightening torques for the body screws

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REPLACING the seal set

6

REPLACING the seal set
Danger!

Risk of injury from high pressure in the system.
▶▶Turn off the pressure and vent the lines before loosening lines or valves.
Risk of injury from improper maintenance work.
▶▶Maintenance may be performed by authorized technicians only.
▶▶Maintenance work may be performed by authorized technicians only and with the appropriate tools.
▶▶Observe tightening torques of the body screws.
This chapter describes the exact procedure for replacing the seal set.
Difference between actuator size C (40 mm) and the other actuator sizes:•• Spindle 4 has a slot underneath instead of a hexagon socket,•• Pressure piece 5 split.

Seal set

Diaphragm

Required parts:•• 1 piston seal 10 ,•• 1 lip seal 2 ,•• 3 O-rings 8 , 19 , 17 .
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REPLACING the seal set

Note!
To replace all seals, the valve must be completely removed.

6.1

Replacement of the seal set for control function A→→Clamp the valve body 22 into a holding device (applies only to valves not yet installed).
→→Pressurize lower pilot air port with compressed air (value as indicated on the type label).
→→Loosen body screws 24 in diagonal pairs and remove actuator together with diaphragm from the valve
body 22 .

→→Switch off pressure.
→→Detach or unscrew diaphragm.

If attachment is with a bayonet catch, remove the diaphragm by rotating it through 90°.

→→Clamp actuator on square of the actuator housing 1 .
→→Unscrew transparent cap 20 together with O-ring 19 from the cover 18 .
→→Unscrew cover 18 using installation wrench.
Information on the installation wrench can be found in the chapter Installation tools.

→→For actuator sizes G and H only: remove disk 29 .
→→Take out pressure springs 11 and 12 .
→→Remove position indicator 15 using Allen key.
→→Remove nut 14 , countering the lower end of the spindle with Allen key or flat-blade screwdriver 4 .
→→Push out spindle 4 together with pressure piece 5 downwards.
→→Carefully push out piston 9 together with upper support disk 13 from bottom to top.
→→Remove lower shim washer 7 and O-ring 8 from the piston 9 .
→→Remove piston seal 10 from piston 9 and clean piston.
→→For actuator size H: Carefully press locking washer over lip seal 2 .
→→Carefully remove lip seal 2 out of actuator housing 1 .
Note!
Do not damage sealing surface on the actuator housing.
Remove grease and dirt from all internal parts.
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REPLACING the seal set→→Lightly lubricate actuator housing 1 :PA actuator: with Lagermeister SL
PPS actuator: with Amblygon TA 30/1.

→→Lightly lubricate seat for lip seal 2 and spindle guide 4 in the actuator housing 1 with Lagermeister
SL or Amblygon TA 30/1.

→→Insert lip seal 2 into the actuator housing.
→→For actuator size H: Press in locking washer.
→→Lightly lubricate spindle 4 with Lagermeister SL or Amblygon TA 30/1.
→→Using the assembly sleeve, push spindle 4 with pressure piece 5 from below all the way into theactuator housing.

Keep diaphragm and diaphragm contact point free of grease.

→→Remove assembly sleeve from spindle.
→→Clamp actuator on square of the actuator housing 1 .
→→Push lower shim washer 7 all the way onto the spindle 4 .
→→Lightly lubricate groove base on the piston 9 with Lagermeister SL or Amblygon TA 30/1.
→→Insert new piston seal 10 and O-ring 8 into piston 9 .
→→Install piston 9 in the actuator housing.
→→Push support disk 13 over spindle 4 .
→→Wet spindle thread with liquid adhesive Loctite 274.
→→Tighten nut 14 , countering the lower end of the spindle with Allen key or flat-blade screwdriver.
Observe the tightening torques in chapter “6.3.1”.

→→Install position indicator 15 using Allen key. Tightening torque approx. 1.5 Nm.
→→Insert pressure springs 11 and 12 .
→→For actuator sizes G and H: Put on washer 29 .
→→Insert new O-ring 19 into the cover 18 .
→→Lightly lubricate thread of the cover with Lagermeister SL or Amblygon TA 30/1.
→→Screw cover 18 to the actuator housing using installation wrench. Observe the tightening torques inchapter “6.3.2”.

→→Screw in transparent cap 20 . Tightening torque approx. 1.5 Nm.
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REPLACING the seal set→→Install diaphragm depending on type of diaphragm.
→→Align diaphragm 21 . Identification tab perpendicular to the direction of flow.
→→Clamp the valve body 22 into a holding device (applies only to valves not yet installed).
→→Pressurize lower pilot air port with compressed air (value as indicated on the type label).
→→Place actuator back on the valve body.
→→Lightly tighten body screws 24 in diagonal pairs until the diaphragm is positioned between the valve
body and actuator. Do not fully tighten body screws yet.

→→Actuate the diaphragm valve twice to position the diaphragm correctly.
→→Switch off control pressure (valve position closed).
→→Tighten body screws 24 in diagonal pairs up to the permitted tightening torque. Observe the tightening
torques in chapter “5.5”.

17englishType 2030
REPLACING the seal set

6.2

Replacement of the seal set for control functions B
and I→→Clamp the valve body 22 into a holding device (applies only to valves not yet installed).
→→Loosen body screws 24 in diagonal pairs and remove actuator together with diaphragm from the valve
body 22 .

→→Detach or unscrew diaphragm.

If attachment is with a bayonet catch, remove the diaphragm by rotating it through 90°.

→→Clamp actuator on square of the actuator housing 1 .
→→Unscrew transparent cap 20 together with O-ring 19 from the cover 18 .
→→Unscrew cover 18 using installation wrench.
Information on the installation wrench can be found in the chapter Installation tools.

→→For actuator sizes G and H only: remove disk 29 .
→→Remove position indicator 15 using Allen key.
Warning!
Risk of injury when opening the actuator for control function B.
The actuator contains a tensioned spring. If the housing is opened, there is a risk of injuries from thespring jumping out.
▶▶Carefully open the actuator housing and hold it in such a way that any parts which jump out cannot
injure anyone or damage anything.

→→Remove nut 14 , countering the lower end of the spindle 4 with Allen key or flat-blade screwdriver.
→→Carefully remove piston 9 together with upper shim washer 13 .
→→Remove lower shim washer 7 and O-ring 8 .
→→For control function B: Take out pressure spring 6 .
→→Push out spindle 4 together with pressure piece 5 downwards.
→→For actuator size H: Carefully press locking washer over lip seal 2 .
→→Carefully remove lip seal 2 from the actuator housing 1 .
Note!
Do not damage sealing surface on the actuator housing.

18

englishType 2030
REPLACING the seal set

Remove grease and dirt from all internal parts.

→→Lightly lubricate actuator housing 1 :PA actuator: with Lagermeister SL
PPS actuator: with Amblygon TA 30/1.

→→Lightly lubricate seat for lip seal 2 and spindle guide 4 in the actuator housing with Lagermeister SL
or Amblygon TA 30/1.

→→Insert lip seal 2 into the actuator housing.
→→For actuator size H: Press in locking washer.
→→Lightly lubricate spindle 4 with Lagermeister SL or Amblygon TA 30/1.
→→Using the assembly sleeve, push spindle 4 with pressure piece 5 from below all the way into theactuator housing.

Keep diaphragm and diaphragm contact point free of grease.

→→Remove assembly sleeve from spindle.
→→Clamp actuator on square of the actuator housing 1 .
→→For control function B: Insert pressure spring 6 .
→→For control function I: Do not insert pressure spring.
→→Push lower shim washer 7 all the way onto the spindle 4 .
→→Remove piston seal 10 from piston 9 and clean piston.
→→Lightly lubricate groove base on the piston 9 with Lagermeister SL or Amblygon TA 30/1.
→→Insert new piston seal 10 and O-ring 8 into piston 9 .
→→For control function B: Install piston with pretensioned spring in the actuator housing 1 ; to do this,manually press in pressure spring 6 together with piston 9 until the spindle thread protrudes throughthe bore and hold in this position.

→→Push support disk 13 all the way onto the spindle 4 .
→→Wet spindle thread with liquid adhesive Loctite 274.
→→Tighten nut 14 , countering the lower end of the spindle with Allen key or flat-blade screwdriver.
Observe the tightening torques in chapter “6.3.1”.

→→For actuator sizes G and H: Put on washer 29 .
→→Insert new O-ring 17 .
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REPLACING the seal set→→Insert new O-ring 19 into the cover 18 .
→→Lightly lubricate thread of the cover with Lagermeister SL or Amblygon TA 30/1.
→→Screw down cover 18 using installation wrench. Observe the tightening torques in chapter “6.3.2”.
Information on the installation wrench can be found in the chapter Installation tools.

→→Install position indicator 15 using Allen key. Tightening torque approx. 1.5 Nm.
→→Screw in transparent cap 20 . Tightening torque approx. 1.5 Nm.
→→Install diaphragm depending on type of diaphragm.
→→Align diaphragm 21 . Identification tab perpendicular to the direction of flow.
→→Clamp the valve body 22 into a holding device (applies only to valves not yet installed).
→→Place actuator back on the valve body 22 .
→→Lightly tighten body screws 24 in diagonal pairs until the diaphragm is positioned between the valve
body and actuator. Do not fully tighten body screws yet.

→→Pressurize upper pilot air port with compressed air (value as indicated on the type label).
→→Actuate the diaphragm valve twice to position the diaphragm correctly.
→→Pressurize upper pilot air port with compressed air (valve position closed).
→→Tighten body screws 24 in diagonal pairs up to the permitted tightening torque. Observe the tightening
torques in chapter “5.5”.

→→Switch off control pressure.

6.3

Tightening torques

6.3.1

Tightening torques for the nut

Designation of the parts
Nut (Pos. 14)

Table 3:Tightening torques for the nut

20

englishActuator size

Tightening torque [Nm](guide value)

C

3.5

D, E

5.0

F

10.0

G, H

20.0

Type 2030
REPLACING the seal set

6.3.2

Tightening torques for the cover

Designation of the parts
Cover (Pos. 18)

Table 4:

Actuator size

Tightening torque [Nm](guide value)

C

25.0

D

35.0

E

40.0

F

60.0

G

80.0

H

110.0

Tightening torques for the cover21

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Conversion of the control function

7

Conversion of the control function
Danger!

Risk of injury from high pressure in the system.
▶▶Turn off the pressure and vent the lines before loosening lines or valves.
Risk of injury from improper maintenance work.
▶▶Maintenance may be performed by authorized technicians only.
▶▶Maintenance work may be performed by authorized technicians only and with the appropriate tools.
▶▶Observe tightening torques of the body screws.
This chapter describes the exact procedure for converting control function A to B and control function A to
I for the following actuator sizes:•• C (40 mm), D (50 mm), E (63 mm), F (80 mm), G (100 mm) and H (125 mm).
Difference between actuator size C (40 mm) and the other actuator sizes:•• Spindle 4 has a slot underneath instead of a hexagon socket,•• Pressure piece 5 split.

7.1

Conversion of control function A to B

Required parts:•• 1 pressure spring 6•• 1 O-ring 17→→Clamp the valve body 22 into a holding device (applies only to valves not yet installed).
→→Pressurize lower pilot air port with compressed air (value as indicated on the type label).
→→Loosen body screws 24 in diagonal pairs and remove actuator together with diaphragm from the valve
body 22 .

→→Switch off pressure.
→→Detach or unscrew diaphragm.

If attachment is with a bayonet catch, remove the diaphragm by rotating it through 90°.

→→Clamp actuator on the square of the actuator housing 1 .
→→Unscrew cover 18 using installation wrench.
→→For actuator sizes G and H only: remove disk 29 .
22→→Remove pressure springs 11 and 12 .

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Conversion of the control function→→Remove position indicator 15 using Allen key.
→→Loosen nut 14 , countering the lower end of the spindle with Allen key or flat-blade screwdriver 4 .
→→Carefully remove piston 9 together with upper support disk 13 .
Note!
Do not damage sealing surface on the actuator housing.

→→Remove lower shim washer 7 and O-ring 8 .
→→Lightly lubricate actuator housing 1 :PA actuator: with Lagermeister SL
PPS actuator: with Amblygon TA 30/1.

→→Insert pressure spring 6 .
→→Push lower shim washer 7 and O-ring 8 all the way onto the spindle.
→→Install piston 9 with pretensioned pressure spring 6 into the actuator housing; to do this, manuallypress in pressure spring together with piston until the spindle thread protrudes through the bore. Holdpiston in this position (if required, use the removed pressure spring to press in the piston).

→→Push support disk 13 over spindle 4 .
→→Wet spindle thread with liquid adhesive Loctite 274.
→→Fit nut 14 and relieve the pressure spring against the nut.
→→Tighten nut 14 , countering the lower end of the spindle with Allen key or flat-blade screwdriver.
Observe the tightening torques in chapter “6.3.1”.

→→Install position indicator 15 using Allen key. Tightening torque approx. 1.5 Nm.
→→For actuator sizes G and H: Put on washer 29 .
→→Insert O-ring 17 into the groove of the actuator housing.
→→Lightly lubricate thread of the cover with Lagermeister SL or Amblygon TA 30/1.
→→Screw down cover 18 using installation wrench. Observe the tightening torques in chapter “6.3.2”.
Information on the installation wrench can be found in the chapter Installation tools.

→→Install diaphragm depending on type of diaphragm.
→→Align diaphragm 21 . Identification tab perpendicular to the direction of flow.
→→Clamp the valve body into a holding device (applies only to valves not yet installed).
→→Place actuator back on the valve body 22 .

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Conversion of the control function→→Lightly tighten body screws 24 in diagonal pairs until the diaphragm is positioned between the valve
body and actuator. Do not fully tighten body screws yet.

→→Pressurize upper pilot air port with compressed air (value as indicated on the type label).
→→Actuate the diaphragm valve twice to position the diaphragm correctly.
→→Pressurize upper pilot air port with compressed air (valve position closed).
→→Tighten body screws 24 in diagonal pairs up to the permitted tightening torque. Observe the tightening
torques in chapter “5.5”.

→→Switch off control pressure.

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Conversion of the control function

7.2

Conversion of control function A to I

Required parts:•• 1 O-ring 17→→Clamp the valve body 22 into a holding device (applies only to valves not yet installed).
→→Pressurize lower pilot air port with compressed air (value as indicated on the type label).
→→Loosen body screws 24 in diagonal pairs and remove actuator together with diaphragm from the valve
body 22 .

→→Switch off pressure.
→→Detach or unscrew diaphragm.

If attachment is with a bayonet catch, remove the diaphragm by rotating it through 90°.

→→Clamp actuator on the square of the actuator housing 1 .
→→Unscrew cover 18 using installation wrench.
→→For actuator sizes G and H only: remove disk 29 .
→→Remove pressure springs 11 and 12 .
→→Remove position indicator 15 using Allen key.
→→Loosen nut 14 , countering the lower end of the spindle with Allen key or flat-blade screwdriver 4 .
→→Carefully remove piston 9 together with upper support disk 13 .
Note!
Do not damage sealing surface on the actuator housing.

→→Remove lower shim washer 7 and O-ring 8 .
→→Lightly lubricate actuator housing 1 :PA actuator: with Lagermeister SL
PPS actuator: with Amblygon TA 30/1.

→→Push lower shim washer 7 and O-ring 8 all the way onto the spindle.
→→Insert piston 9 into the actuator housing 1 and push over spindle thread.
→→Push support disk 13 over spindle 4 .
→→Wet spindle thread with liquid adhesive Loctite 274.
→→Fit and tighten nut 14 , countering the lower end of the spindle with Allen key or flat-blade screwdriver.
Observe the tightening torques in chapter “6.3.1”.

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Conversion of the control function→→Install position indicator 15 using Allen key. Tightening torque approx. 1.5 Nm.
→→For actuator sizes G and H: Put on washer 29 .
→→Insert O-ring 17 into the groove of the actuator housing.
→→Lightly lubricate thread of the cover with Lagermeister SL or Amblygon TA 30/1.
→→Screw down cover 18 using installation wrench. Observe the tightening torques in chapter “6.3.2”.
→→Install diaphragm depending on type of diaphragm.
→→Align diaphragm 21 . Identification tab perpendicular to the direction of flow.
→→Clamp the valve body into a holding device (applies only to valves not yet installed).
→→Place actuator back on the valve body 22 .
→→Lightly tighten body screws 24 in diagonal pairs until the diaphragm is positioned between the valve
body and actuator housing. Do not fully tighten body screws yet.

→→Pressurize upper pilot air port with compressed air (value as indicated on the type label).
→→Actuate the diaphragm valve twice to position the diaphragm correctly.
→→Pressurize upper pilot air port with compressed air (valve position closed).
→→Tighten body screws 24 in diagonal pairs up to the permitted tightening torque. Observe the tightening
torques in chapter “5.5”.

→→Switch off control pressure.

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Installation tools

8

Installation tools

8.1

Installation wrenchInstallation wrench actuator size C, D
Actuatorø (mm)

Order numberC

40

639 175D50

639 175

Actuatorø (mm)

Order numberE

63639 170

Actuatorø (mm)

Order numberF

80

639 171G

100

639 172H

125

639 173

Installation wrench actuator size E

Installation wrench actuator size F, G, H

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Installation tools

8.2

Assembly sleeves
Ø 15

Ø 9

40

40

60

Ø 7

D

D

Ø 10

Ø 10

Ø 8

Spindle ø 8 mm

Ø 16Spindle ø 10 mm

Spindle ø 16 mm

Assembly sleeve for spindle ø 8 mm
Actuator size

Diaphragm size

Dimension D (mm)Order number

C (40 mm)8

ø5

639 165

D (50 mm)15

ø6

639 166

Assembly sleeve for spindle ø 10 mm
Actuator size

Diaphragm size

Dimension D (mm)Order number

E (63 mm)

15, 20, 25

ø6

639 167

F (80 mm)

15, 20, 25

ø8639 168

Assembly sleeve for spindle ø 16 mm
Actuator size

Diaphragm size

Dimension D (mm)Order number

G (100 mm)

32, 40, 50-

639 169

H (125 mm)

40, 50, 65-

639 169

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Ordering the parts

9

Ordering the parts
Caution!

Risk of injury and/or damage due to the use of incorrect parts.
Incorrect accessories and unsuitable spare parts may cause injuries and damage the device and the surrounding area.
▶▶Use original accessories and original spare parts from Bürkert only.

9.1

Seal set
Actuator size

Diaphragm size

C (40 mm)

Order number
PPS actuator

PA actuator

8011 465-

D (50 mm)15

011 477011 426

E (63 mm)

15, 20, 25

011 488011 440

F (80 mm)

15, 20, 25

011 492

011 448

G (100 mm)

32, 40, 50

012 127012 125

H (125 mm)

40, 50, 65

011 494011 464

Table 5:

Order numbers for the seal set

9.2

Conversion kit
Order number
Actuator size

Table 6:

Conversion kit
CFA after CFB

Conversion kit
CFA after CFI

C (40 mm)011 678001 948

D (50 mm)011 681011 744

E (63 mm)011 685011 766

F (80 mm)011 689011 767

G (100 mm)

011 710011 795

H (125 mm)

011 715011 813

Order numbers for the conversion kit

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Ordering the parts

9.3

Diaphragm

Diaphragm
size
8
15

15 BC**
20

20 BC**
25

32

40

50

65

Order numbers for diaphragms
EPDM
EPDM
FKM
PTFE
(AB*)
(AD*)
(FF*)
(EA*)
677 663 E02** 688 421 E03** 677 684 F01** 677 674 L04**

Advanced PTFE(EU*)
679 540 L05**

Gylon laminated(ER*)
693 175 L06**

677 664 E02** 688 422 E03** 677 685 F01** 677 675 E02679 541 E02PTFE**
PTFE+
hole**
693 162 E02** 693 163 E03** 693 164 F01**––––

693 176

L06**

–

–

679 542 E02677 665 E02** 688 423 E03** 677 686 F01** 677 676 E02PTFE**
PTFE+
hole**
693 165 E02** 693 166 E03** 693 167 F01**––––

693 177

L06**

–

–

679 543 E02677 667 E01** 688 424 E03** 677 687 F01** 677 677 E02PTFE**
PTFE+
hole**
677 668 E01** 688 425 E03** 677 688 F01** 677 678 E02679 544 E02PTFE**
PTFE+
hole**
677 669 E01** 688 426 E03** 677 689 F01** 677 679 E02679 545 E02PTFE**
PTFE+
hole**
677 670 E01** 688 427 E03** 677 690 F01** 677 680 E02679 546 E02PTFE**
PTFE+
hole**
677 671 E01** 688 428 E03** 677 691 F01** 677 681 E02679 743 E02PTFE**
PTFE+
hole**

693 178L06**

693 179L06**

693 180L06**

693 181

L06**

–

–

Table 7:

Order numbers for the diaphragms* SAP code** Designation on the diaphragm

Data sheet, operating instructions and other information on the type can be found on the Internet at:
www.burkert.com.
If you have any queries, please contact your Bürkert sales office.

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