Type

2030, 2031, 2032, 2033, 2037

Piston operated diaphragm valve,
Actuator sizes 175 and 225 mm, Diameter DN65 - DN100
Kolbengesteuerte Membranventile,
Antriebsgrößen 175 und 225 mm, Nennweiten DN65 - DN100
Vannes à membrane commandée par piston,
Tailles d’actionneur 175 et 225 mm, Diamètre nominal DN65 - DN100

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 & Co. KG, 2000 - 2023
Operating Instructions 2310/14_EU-ML_00803968 / Original DE

Type 2030, 2031, 2032, 2033,
2037
﻿

Piston operated diaphragm valves type 2030, 2031, 2032, 2033, 2037
1

OPERATING INSTRUCTIONS................................................ 4
1.1 Definition of the Term “Device”.................................... 4
1.2 Symbols........................................................................ 4

2

INTENDED USE..................................................................... 5

3BASIC SAFETY INSTRUCTIONS........................................... 54

GENERAL INFORMATION..................................................... 7
4.1 Contact addresses....................................................... 7
4.2 Warranty....................................................................... 7
4.3 Information on the internet........................................... 7

5

SYSTEM DESCRIPTION.............................................................. 7
5.1 General description............................................................ 7
5.2 Intended application area.................................................. 7

6

7

TECHNICAL DATA.................................................................. 7
6.1 Standards and directives.............................................. 7
6.2 Type label..................................................................... 8
6.3 Labeling of the forged steel valve body....................... 8
6.4 Labeling of the tube valve body (VP)............................ 9
6.5 Operating conditions.................................................... 9
6.6 General technical data................................................ 13
STRUCTURE AND FUNCTION............................................ 14
7.1 Structure..................................................................... 14
7.2 Function...................................................................... 16

8

INSTALLATION........................................................................... 17
8.1 Installation position 2/2-way valve............................. 17
8.2 Installation position of T-valve type 2032................... 18
8.3 Installation position of Y-valve type 2037................... 18
8.4 Installation into the pipeline.......................................... 19
8.5 Removing the actuator and diaphragm fromthe valve body............................................................ 20
8.6 Mounting the actuator and diaphragmon the valve body....................................................... 20
8.7 VA insert..................................................................... 21
8.8 Connection of the control medium............................. 22
8.9 Disassembly............................................................... 22

9ELECTRICAL CONNECTION............................................... 23

10 MAINTENANCE.................................................................... 23
10.1 Maintenance .............................................................. 23
10.2 Repairs....................................................................... 25
11 MALFUNCTIONS................................................................. 27
12 SPARE PARTS...................................................................... 28
12.1 Order table................................................................. 29
13 TRANSPORT, STORAGE, DISPOSAL.................................. 30

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Type 2030, 2031, 2032, 2033,
2037
Operating instructions

1

OPERATING INSTRUCTIONS

The operating instructions describe the entire life cycle of thedevice. Keep these instructions in a location which is easily
accessible to every user and make these instructions available toevery new owner of the device.

1.2

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

WARNING!

WARNING!

The operating instructions contain important safety
information!
Failure to observe these instructions may result in hazardous
situations.
▶ The operating instructions must be read and understood.

1.1

Symbols

Definition of the Term “Device”

In these instructions, the term “device” always refers to thediaphragm valves of Types 2030, 2031, 2032, 2033, 2037.

Warns of a potentially dangerous situation.
▶ Failure to observe the warning may result in serious or fatal
injuries.
CAUTION!
Warns of a possible danger.
▶ Failure to observe this warning may result in a medium or
minor injury.
NOTE!
Warns of damage to property.
Important additional information, tips andrecommendations.
Refers to information in these operating instructions or inother documentation.
▶ Designates instructions for risk prevention.
→ Designates a procedure which you must carry out.

4

englishType 2030, 2031, 2032, 2033,
2037
Intended use

2

INTENDED USE

Non-authorized use of the devices may be dangerous topeople, nearby equipment and the environment.
The diaphragm valves of Types 2030, 2031, 2032, 2033 and2037 are designed for the control of contaminated, ultra-pureor sterile media, as well as for abrasive or aggressive media(also with higher viscosity).
▶ The device is designed for the controlled flow of liquid andgaseous media.
▶ The devices may be used only for media which do not attack
the body and seal materials (see type label). Information on
the resistance of materials to the media is available fromyour Bürkert sales office or on the Internet at:country.burkert.com → resistApp▶ In potentially explosive atmospheres, only use devices thatare approved for this purpose. These devices are identified bya separate Ex type label. Before use, note the information on
the separate Ex type label and the Ex additional instructionsor the separate Ex operating instructions.
▶ During use observe the authorized data, the operating conditions and conditions of use specified in the contract documents, operating instructions and on the type label.
▶ Protect device from damaging environmental influences(e.g. radiation, humidity, steam, etc.). If anything is unclear,consult the relevant sales office.
▶ The device may be used only in conjunction with third-party
devices and components recommended and authorized by
Bürkert.

▶ Correct transportation, correct storage and installation andcareful use and maintenance are essential for reliable andfaultless operation.
▶ Use the device only as intended.

3

BASIC SAFETY INSTRUCTIONS

These safety instructions do not consider any contingencies orincidents which occur during installation, operation and maintenance. The operator is responsible for observing the locationspecific safety regulations, also with reference to the personnel.
DANGER!
Risk of injury from high pressure and discharge of medium.
▶ Before working on the device or system, switch off the pressure. Vent or empty the lines.
Danger of bursting from overpressure.
▶ Observe the specifications on the type label for maximal
control and medium pressure.
▶ Observe permitted medium temperature.

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Type 2030, 2031, 2032, 2033,
2037
Intended use
Risk of injury from electric shock (when electrical component
installed).
▶ Before reaching into the device or the equipment, switch off
the power supply and secure to prevent reactivation!
▶ Observe applicable accident prevention and safety regulations for electrical equipment!
Risk of injury from moving parts in the device!
▶ Do not reach into openings.
Danger due to loud noises.
▶ Depending on the operating conditions, the device may generate
loud noises. More detailed information on the likelihood of loudnoises is available from the relevant sales office.
▶ Wear hearing protection when in the vicinity of the device.
Danger of burns and risk of fire.
Quickly switching actuators or hot medium may cause thesurface of the device to become hot.
▶ Only touch the device while wearing protective gloves.
▶ Keep the device away from highly flammable substances andmedia.
Leaking medium when the diaphragm is worn.
▶ Regularly check relief bore for leaking medium.
▶ If medium is leaking out of the relief bore, change the diaphragm.
▶ If the media is hazardous, protect the area surrounding thedischarge point against dangers.

6

englishGeneral hazardous situations.
To prevent injury, ensure:▶ That the system cannot be activated unintentionally.
▶ Only trained technicians may perform installation and maintenance work.
▶ Perform installation work and maintenance work using suitable
tools only.
▶ Do not transport, install or remove heavy devices without the aidof a second person and using suitable auxiliary equipment.
▶ After an interruption, ensure that the process is restarted in acontrolled manner. Observe sequence!
1. Apply supply voltage or pneumatic supply.
2. Charge the device with medium.
▶ The device may be operated only when in perfect condition andin consideration of the operating instructions.
▶ Observe the safety regulations specific to the plant for application
planning and operation of the device.
▶ The plant operator is responsible for the safe operation and handling of the plant.
▶ Observe the general rules of technology.
▶ The exhaust air may be contaminated with lubricants in theactuator.
To prevent damage to property of the device, ensure:▶ Supply the media connections only with those media which are
specified as flow media in the chapter entitled “6 Technical data”.
▶ Do not make any changes on the device and do not subject it tomechanical stress.

Type 2030, 2031, 2032, 2033,
2037
General information

4

GENERAL INFORMATION

5SYSTEM DESCRIPTION

4.1

Contact addresses

5.1

General description

Germany
Bürkert Fluid Control Systems
Sales Center
Chr.-Bürkert-Str. 13-17
D-74653 IngelfingenTel. + 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 the printed
Quickstart.
Also on the Internet at country.burkert.com

4.2

Warranty

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

4.3

Information on the internet

The operating instructions and data sheets for Types 2030, 2031,
2032, 2033 and 2037 can be found on the Internet at:country.burkert.com

The Types 2030, 2031, 2032, 2033 and 2037 are an externally controlled diaphragm valve with piston drive and diaphragm seal. The
valve is self-draining in the appropriate installation position.

5.2

Intended application area

The diaphragm valve of Type 2030 is designed for the control ofcontaminated and aggressive media. The valves of Type 2031,
2032, 2033 and 2037 can be used even for ultra-pure or sterile
media with a higher viscosity. The valves may only control media
which do not attack the body and seal materials (see type label).
Information on the resistance of materials to the media is available
from your Bürkert sales office or on the Internet at:country.burkert.com → resistApp.

6

TECHNICAL DATA

6.1

Standards and directives

The device complies with the relevant EU harmonisation legislation. In addition, the device also complies with the requirements of the laws of the United Kingdom.
The harmonised standards that have been applied for the conformity assessment procedure are listed in the current version of
the EU Declaration of Conformity/UK Declaration of Conformity.

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Type 2030, 2031, 2032, 2033,
2037
System description

6.2

Type label

6.3

WARNING!

Batch number

Risk of injury from high pressure!
Important device-specific technical specifications are indicatedon the type label.
▶ Observe permitted pressure range on the type label of thedevice.
Control function

Orifice(Diaphragm size)

Type

Seal materialPort connection

Made in Germany

Body material

2030 A 65,0 EPDM PV
FLNSCH Pmed 10bar
Pilot 4,5-6bar
S/N 1060

00147838

Serial number

8

Max. medium
pressure
Control pressure

W36LP

ApprovalratingDate ofmanufacture

Identification number ofthe device
Fig. 1:

Labeling of the forged steel valve
body

Inscription on the type label (Example)

englishCompany logo
Material

XX F

Nominal pressure

XXXXXXXX/XXX
1.4435/316L(VS) XXXX
PN16/CWP150 XXXXXX

Orifice connection and pipe
dimensions

XXXXXXXXXX

Fig. 2:

Labeling of the forged steel valve body

Production number/ Serial number
Self-drain angle
Customer-specifictext (optional)

Type 2030, 2031, 2032, 2033,
2037
System description

6.4

Labeling of the tube valve body
(VP)

Material

Company logo

1.4435316L(VP)

Nominal pressure

Heat

XXXXXXXX

PN16 / CWP150

6.5

Operating conditions
WARNING!

Danger of bursting from overpressure!
If the device ruptures, the medium may cause injuries,
chemical burns or scalds!
▶ Do not exceed the maximum control and medium pressure.
Observe specifications on the type label!
▶ Observe permitted ambient and media temperature.

6.5.1

Allowable temperatures

Ambient temperature for actuators:

Material

Actuator size øTemperaturePA

175 mm / 225 mm-10 ... +50 °C

Tab. 1:XXXXXXXXXX

Production number /Serial number
XXXXXXXX / XXXXXXX / XXXXXX

Orifice connection
and pipe dimensions
Self-drain angle /Customer-specific text
(optional)

Medium temperature for body:

Body material

Temperature

Stainless steel
PVC (see PT-graph)
PVDF (see PT-graph)
PP (see PT-graph)-10 ... +150 °C
10 ... +60 °C-20 ... +120 °C
10 ... +90 °C

Tab. 2:

Fig. 3:

Ambient temperature for actuators

Medium temperature for bodyLabeling of the tube valve body (VP)

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Type 2030, 2031, 2032, 2033,
2037
System description

The indicated medium temperatures apply only to media
which do not corrode or swell the diaphragm materials.
The behavior of the medium with respect to the diaphragmmay be changed by the medium temperature.
The function properties, in particular the service life of thediaphragm, may deteriorate if the medium temperature
increases.
Do not use the diaphragms as steam shut-off element.
Material

Temperature

Remarks

EPDM (AB)-10...+130 °C

Steam sterilisation
up to +140 °C / 60 min

EPDM (AD)-10...+143 °C

Steam sterilisation
up to +150 °C / 60 min

FKM (FF)0...+130 °C

No steam / dry heat
up to +150 °C / 60 min

PTFE (EA)-10...+130 °C

Steam sterilisation
up to +140 °C / 60 min

Advanced
PTFE (EU)-5...+143 °C

Steam sterilisation
up to +150 °C / 60 min

Gylon (ER)

-5...+130 °C

Steam sterilisation
up to +140 °C / 60 min

Tab. 3:10

Medium temperature for diaphragms

english6.5.2

Maximum permitted medium pressure

Permitted medium pressure depending on the medium temperature with plastic valve body:
Medium pressure [bar]Medium temperature for diaphragms:

according to DIN EN ISO 16138

Medium temperature [°C]Fig. 4:Graph of medium pressure / Medium temperature with plastic
valve bodyType 2030, 2031, 2032, 2033,
2037
System description
Maximum permitted medium pressure for control function A

6.5.3

The values apply to body made of:

WARNING!

• plastic,• stainless steel: block material, forged, casted and tube valve
body
Orifice DN(Diaphragm size)

65
80
100
Tab. 4:Control pressure

Actuator Max. sealed medium pressure [bar]size ø
Pressure on one Pressure on both
[mm]
side
sides

Danger of bursting from overpressure!
If the device explodes, there is a risk of serious injury, chemicalburns, scalding!
▶ Do not exceed the maximum control and medium pressure.
Observe specifications on the type label!
NOTE!

EPDM/
FKM

PTFE

EPDM/
FKM

PTFE

Malfunction due to incorrect control pressure!

175

8.0

5.0

5.0

4.5

175
225
225

5.0
10.0
8.0

3.01)
7.02)
4.0

2.5
6.0
3.5

2.01)
4.53)
1.5

The specifications on the type label apply to valves with reduced
spring force (i.e. with lower control pressure). If you are unsure,please contact your Bürkert sales office.

Maximum permitted medium pressure CFA

1) Tightness value only applies to GYLON/EPDM laminated(ER diaphragm), otherwise 0 bar for PTFE/EPDM andadvanced PTFE/EPDM (EA and EU diaphragms).
2) Max. operating pressure for GYLON/EPDM laminated is 8.5 bar.
3) Max. operating pressure for GYLON/EPDM laminated is 8.0 bar.

Permitted control pressure*
Orifice DN(Diaphragm size)

Actuatorsize
ø [mm]

Min. control
pressure[bar]

Max. control
pressure
[bar]

65

175

2

6

80

175

2

6

80

225

2

6

225

2

6

100
Tab. 5:Permitted control pressure* Observe the permitted pressure range according to thetype label!

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Type 2030, 2031, 2032, 2033,
2037
System description

Actuator size
ø
[mm]

65
80
80
100

175
175
225
225

Tab. 6:

Control pressure CFA

6.5.4

Control pressure [bar]for medium pressure
0 bar
maximum
6
4.5
6
5.0
6
5.0
6
5.0

Minimum control pressure

Required minimum control pressure depending on medium
pressure
The values apply to body made of:• plastic• stainless steel: block material, forged, casted and tube valve
body

Important for the service life of the diaphragm!
• Do not select control pressure higher than required.
Medium pressure [bar]Orifice DN(Diaphragmsize)

Control function B (CFB)
NOTE!

10
9
8
7
6
5
4
3
2
1
0
0

Fig. 5:

Medium pressure [bar]Control pressure for control function A

10
9
8
7
6
5
4
3
2
1
0
0

Fig. 6:12englishElastomer diaphragm
Diaphragm size / Actuator diameter
DN 65 / Ø 125
DN 65 / Ø 175
DN 80 / Ø 175
DN 100 / Ø 175

1.0

2.0

3.0

4.0

5.0

Control pressure [bar]

6.0

7.0

7.0

8.0

Control function B - Elastomer diaphragm

PTFE - Diaphragm
Diaphragm size / Actuator diameter
DN 65 / Ø 125
DN 65 / Ø 175
DN 80 / Ø 175
DN 100 / Ø 175

1.0

2.0

3.0

4.0

5.0

Control pressure [bar]Control function B - PTFE diaphragm

6.0

Type 2030, 2031, 2032, 2033,
2037
System description

6.6

Medium pressure [bar]Control function I (CFI)

10
9
8
7
6
5
4
3
2
1
0
0

Fig. 7:

Elastomer diaphragm
Diaphragm size / Actuator diameter

Materials
Body
Type 2030
PP, PVC, PVDF
Type 2031	Stainless steel precision casting (VG),
Forged steel (VS)
Stainless steel tube valve body (VP)

DN 65 / Ø 125
DN 65 / Ø 175
DN 80 / Ø 175
DN 100 / Ø 175

Type 2032, 2033, 2037

Medium pressure [bar]Stainless steel - block material

Actuator 			PASealing elements actuator NBR
1.0

3.0

2.0

5.0

4.0

Control pressure [bar]6.0Control function I - Elastomer diaphragm

PTFE - Diaphragm
Diaphragm size / Actuator diameter
10
9
8
7
6
5
4
3
2
1
0
0

General technical data

2.0

3.0

4.0

5.0

EPDM, PTFE, FKM

Connections
Control air connection

G1/4

Medium connection

DN 65 / Ø 125
DN 65 / Ø 175
DN 80 / Ø 175
DN 100 / Ø 175

1.0

Diaphragm		

6.0

Weld end: in accordance withDIN EN 1127 (ISO 4200), DIN 11850 R2,
DIN 11866 (ASME-BPE)other connections on request

7.0

Control pressure [bar]Fig. 8:Control function I - PTFE Diaphragm

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Type 2030, 2031, 2032, 2033,
2037
System description
Media
Control medium

neutral gases, air

Flow media
Type 2030:  

contaminated and aggressive media

	Type 2031, 2032,
2033 and 2037:

 ontaminated, aggressive, ultra-pure, sterilecmedia and media with higher viscosity

Installation position	any position, preferably with the actuatorface up,
Tank bottom valve Type 2033: Actuator to
the bottom

7

STRUCTURE AND FUNCTION

7.1

Structure

7.1.1

2/2-way valve type 2030 and 2031

The piston-controlled diaphragm valve consists of a pneumatically actuated piston actuator and a 2/2-way valve body.
Transparent cap with positionindicator
Actuator body with cover
Upper pilot air port
(for CFB and CFI)
Lower pilot air port
(for CFA and CFI)
Diaphragm socket
Diaphragm
Valve body
Port connection

Fig. 9:14

englishStructure and description type 2030 and 2031

Type 2030, 2031, 2032, 2033,
2037
System description

7.1.2

T-valve type 2032

7.1.3

Transparent cap withposition indicator

Transparent cap withposition indicator

Actuator cover

Actuator cover

Actuator body

Actuator body
Upper pilot air port
(for CFB and CFI)

Upper pilot air port
(for CFB and CFI)

Lower pilot air port
(for CFA and CFI)

Lower pilot air port
(for CFA and CFI)

Diaphragm socke

Diaphragm socket
Diaphragm

Diaphragm

T-valve body

Port connection
Tank bottom valve withwelding flange

Port connection

Fig. 10:

Tank bottom valve type 2033

Structure and descriptions type 2032

Fig. 11:

Structure and description type 2033

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Type 2030, 2031, 2032, 2033,
2037
System description

7.1.4

Y-valve type 2037

7.2

Function

Spring force (CFA) or pneumatic control pressure (CFB and CFI)
generates the closing force on the diaphragm pressure piece.
The force is transferred via a spindle which is connected to theactuator piston and the valve is opened and closed.

Transparent cap withposition indicator
Actuator cover

7.2.1

Control functions

Control function A (CFA)

Actuator housing

A

Closed by spring force in rest position
P

Upper pilot air port
(for CFB and CFI

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

Lower pilot air port
(for CFA and CFI))P

Diaphragm socket

Control function I (CFI)

Diaphragm

P

Port connection

16

A

Double-acting actuator without spring

Y-valve bodyFig. 12:B

Structure and description type 2037

englishType 2030, 2031, 2032, 2033,
2037
Installation

8

INSTALLATIONDANGER!

Risk of injury from high pressure in the equipment.
▶ Before loosening the lines and valves, turn off the pressure andvent the lines.
Risk of injury due to electrical shock.
▶ Before reaching into the device or the equipment, switch off thepower supply and secure to prevent reactivation.
▶ Observe applicable accident prevention and safety regulations
for electrical equipment.
WARNING!
Risk of injury from improper installation.
▶ Installation may be carried out by authorized technicians only
and with the appropriate tools.
Risk of injury from unintentional activation of the system and an
uncontrolled restart.
▶ Secure system from unintentional activation.
▶ Following assembly, ensure a controlled restart.
CAUTION!
Risk of injury due to heavy devices!
▶ During transport or during assembly, a heavy device may falland cause injury.
▶ Do not transport, install or remove heavy devices without theaid of a second person and using suitable auxiliary equipment.
▶ Use appropriate tools.

8.1

Installation position 2/2-way valve

The piston-controlled diaphragm valve can be installed in any
installation position, preferably with the actuator face up.
Installation for leakage detection
One of the bores in the diaphragm socket, for monitoring leakage must be at the lowest point.
To ensure self-draining
It is the responsibility of the installer and operator toensure self-draining.
Self-draining must be considered during the installation:• Inclination angle of the pipeline:
The inclination angle is the responsibility of the installer andoperator and should correspond to the inclination angle of thepipeline.
For the pipeline, we recommend the inclination angle
according to the valid ASME BPE.
• Self-drainage-angle for valve body:
The self-drainage-angle (α) depends on the valve body size (diaphragm size) and the inner diameter of the port connection (DN).
The self-drainage angle is specified as a value on forged steel
valve bodies (VS) and tube valve bodies (VP) (see “Fig. 2” and“Fig. 3”).
The marking on the port connection of valve bodies serves as anorientation aid (see “Fig. 13”). The marking must point upwards.
The actual self-drainage-angle must be set with a suitablemeasuring tool.

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Type 2030, 2031, 2032, 2033,
2037
Installation
For valve bodies without angle information, you can find the selfdrainage-angle on the Internet.
www.buerkert.com. Type / User Manuals / Additional manual„Angles for self-draining of diaphragm valves“.

When media is supplied:

When media is removed:

Mark for self-draining
upwards

Inclination
angle of thepipeline

Fig. 13:α8.3Installation position for self-draining of the body

If you require clarification, contact your Bürkert sales
department.

8.2

Fig. 14:

Installation position of T-valve
type 2032

Installation for leakage detection

Installation position of type 2032

Installation position of Y-valve
type 2037

Installation for leakage detection
One of the bores in the diaphragm socket, for monitoring leakage must be at the lowest point.
For the installation of the Y-valves into systems, we recommend
the following installation positions:
When media is supplied:

When media is removed:

One of the bores in the diaphragm socket, for monitoring leakage must be at the lowest point.

For the installation of the T-valves into circular pipelines, we recommend the following installation positions:Fig. 15:

18

englishInstallation position of type 2037

Type 2030, 2031, 2032, 2033,
2037
Installation

8.4

Installation into the pipeline

8.4.1

Preparatory work

Recommendation→ Clean pipelines (sealing material, swarf, etc.).

Observe sequence:→ Support and align pipelines.

1. Weld the tank bottom body onto the base of the tankbefore installing the tank. Welding onto a tank which has
already been installed is possible but more difficult.
Weld the tank bottom body in the middle of the tank baseso that the tank can be optimally drained.

8.4.2

Installation requirements• Ensure that pipelines are in alignment.
• Flow direction as required.
If used in an aggressive environment, we recommend
conveying all free pneumatic connections into a neutral
atmosphere with the aid of a pneumatic hose.

8.4.3

Weld or glue the valve body into thepipeline
Before welding or gluing the body, the actuator and thediaphragm must be removed.

The installation is divided into the following steps:
1. Disassemble actuator and diaphragm, see chapter “8.5”
2. → Weld or glue the valve body into the pipeline.
→ After welding or gluing in the body, smooth the valve bodysurface by grinding if required.
→ Carefully clean the body.
3. Mount the actuator and diaphragm, see chapter “8.6”.

8.4.4

Welding tank bottom body Type 2033

2. Weld tank bottom body into the pipeline.
Installation requirements:
Pipelines:

Ensure that the pipelines are aligned.

Preparation: Support and align pipelines. To ensure that thepipeline is self-draining, we recommend theinclination angle according to the valid ASME BPE.
DANGER
Risk of injury from high pressure.
▶ Before working on the system, switch off the pressure andvent or drain lines.
For information on tanks and instructions on welding
observe the standard ASME VIII Division I.
Before you start welding, check the batch number
indicated on the supplied manufacturer’s certificate 3.1.

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Type 2030, 2031, 2032, 2033,
2037
Installation
Observe the applicable laws and regulations of therespective country with regard to the qualification of
welders and the execution of welding work.
1. Welding tank bottom body onto the tank.
NOTE
Before welding, note the following:▶ Use only welding material which is suitable for the tankbottom body.
▶ The tank bottom valve must not collide with any otherinstallation part; the actuator must be easy to install andremove.
2. Welding tank bottom body into the pipeline.
→ Weld in tank bottom body.
Ensure installation is de-energized and low-vibration.
After welding in the valve body:
Install the diaphragm and the actuator, see chapter “8.6”.

20

english8.5

Removing the actuator anddiaphragm from the valve body

8.5.1

Procedure for control function A→ Pressurize lower pilot air port with compressed air (value as
indicated on the type label) (see “Fig. 17”).
This is required to detach the diaphragm without damage fromthe body.
→ Loosen fastening screws crosswise and remove actuator
together with diaphragm from the valve body.

8.5.2

Procedure for control functions B and I→ Loosen fastening screws crosswise and remove actuator
together with diaphragm from the valve body.

8.6

Mounting the actuator anddiaphragm on the valve body
WARNING!

Risk of injury due to damaged device or malfunction.
The failure to observe the tightening torque can damage thedevice or lead to malfunctions.
▶ Observe the tightening torque (see “Tab. 7: Tightening torques for diaphragms”).

Type 2030, 2031, 2032, 2033,
2037
Installation

8.6.1

Procedure for control function A→ Pressurize lower pilot air port with compressed air (value as indicated on the type label) (see “Fig. 17”).

Orifice DN(Diaphragm size)→ Place actuator together with diaphragm on the body.
→ Lightly cross-tighten the body screws until the diaphragm lies
between the body and actuator.
Do not tighten the screws yet.
→ Actuate the diaphragm valve twice to position the diaphragmcorrectly.
→ Tighten body screws without pressurization in diagonal pairs
in three stages (approx. 1/3, approx. 2/3, 3/3 of the tightening
torque), according to table (see “Tab. 7”). The diaphragm should
be positioned and pressed evenly all around the actuator and
body.

8.6.2

Procedure for control functions B and I→ Place actuator together with diaphragm on the body.
→ Lightly cross-tighten the body screws without pressurization until
the diaphragm lies between the body and actuator.
Do not tighten the screws yet.
→ Pressurize upper pilot air port with compressed air (value as
indicated on the type label) (see “Fig. 17”).
→ Actuate the diaphragm valve twice to position the diaphragmcorrectly.
→ Tighten body screws with pressurization in diagonal pairs in threestages (approx. 1/3, approx. 2/3, 3/3 of the tightening torque),according to Table (see “Tab. 7”). The diaphragm should be positioned and pressed evenly all around the actuator and body.

65
80
100
Tab. 7:Tightening torque [Nm]EPDM/FKM PTFE / advanced PTFE /laminated PTFE
20
30
30
40
40
50

Tightening torques for diaphragms→ A tolerance of +10% of the respective tightening torque applies
to all values.

8.7

VA insert

Devices delivered without a diaphragm and a valve body have a VA
insert (order no. 648 864) enclosed.
• The VA insert is required for devices with a diaphragm featuring athreaded connection.
→ The VA insert must be inserted
into the groove of the pressure
piece before installing the diaphragm and the actuator.
VA Insert
Fig. 16:

VA insert• The VA insert is not required for devices with a diaphragmfeaturing a bayonet catch.

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Type 2030, 2031, 2032, 2033,
2037
Installation

8.8

Connection of the control medium

Control function A:→ Connect control medium to lower connection.
Control function B:→ Connect control medium to upper connection.
Control function I:→ Connect control medium to upper and lower connections.
→ Pressure on the upper connection closes the valve.
→ Pressure on the lower connection opens the valve.

8.9

Disassembly
DANGER!

Risk of injury from discharge of medium (acid, alkali, hotmedia)!
It is dangerous to remove the device under pressure due to thesudden release of pressure or discharge of medium.
▶ Before removing a device, switch off the pressure and ventthe lines.
▶ Completely drain the lines.
Replacement of the diaphragm is described in thechapter entitled “10.2 Repairs”, page 25.

Upper control air connection(for CFB and CFI)
Lower control air connection(for CFA and CFI)
Fig. 17:

22

Pneumatic connection

englishType 2030, 2031, 2032, 2033,
2037
Electrical connection

910

ELECTRICAL CONNECTIONWARNING!

The electrical connection is described in the respective
operating instructions for the pilot valve.

Risk of injury from improper maintenance!
▶ Installation may be carried out by authorized technicians
only and with the appropriate tools!

Note the voltage and current type as specified on the typelabel (Voltage tolerance ±10%)!

Risk of injury from unintentional activation of the system andan uncontrolled restart!
▶ Secure system from unintentional activation.
▶ Following maintenance, ensure a controlled restart.

MAINTENANCE
DANGER!

Risk of injury from high pressure in the equipment!
▶ Before loosening the lines and valves, turn off the pressureand vent the lines.
Risk of injury due to electrical shock!
▶ Before reaching into the system , switch off the power supply and secure to prevent reactivation!
▶ Observe applicable accident prevention and safety regulations for electrical equipment!

10.1

Maintenance10.1.1

Actuator

The actuator of the diaphragm valve is maintenance-free provided it is used according to these operating instructions.

10.1.2

Wearing parts of the diaphragm valve

Parts which are subject to natural wear:• Seals• Diaphragm→ If leaks occur, replace the particular wearing parts with anappropriate spare part. (see “12 Spare parts”).
→ Periodic control of the relief bore (“Fig. 18”)

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Type 2030, 2031, 2032, 2033,
2037
Electrical connection
Protecting the diaphragm

Relief bore
for leakage
monitoring

Diaphragm socket

Diaphragm

Port connection

Valve bodyFig. 18:

A bulging PTFE diaphragm may reduce the flow-rate.

Inspection intervals

The following maintenance work is required for the diaphragm valve:→ After the first steam sterilization or when required
retighten body screws crosswise.
→ After maximum 105 switching cycles check the diaphragm forwear.
Muddy and abrasive media require correspondingly
shorter inspection intervals!

10.1.4Service life of the diaphragmThe service life of the diaphragm depends on the following
factors:• Diaphragm material• Medium• Medium pressure
24→ For CFB and CFI try and select the control pressure not higher
than is required to actuate the medium pressure.

10.1.5

Relief bore

10.1.3→ For CFA match the actuator size (actuator force) to themedium pressure to be actuated. If required, select theactuator with reduced spring force EC04.

• Medium temperature• Actuator size
• Control pressure for CFB and CFI

englishCleaning

Commercially available cleaning agents can be used to clean theoutside.
NOTE!
Avoid causing damage with cleaning agents.
▶ Before cleaning, check that the cleaning agents are compatible with the body materials and seals.

Type 2030, 2031, 2032, 2033,
2037
Electrical connection

10.2

Repairs

10.2.1

Example:Replacing the diaphragm

DANGER!
Risk of injury due to discharge of medium.
It is dangerous to remove the device under pressure due to thesudden release of pressure or discharge of medium. During
reinstallation slackened body screws may cause medium to bedischarged.
▶ Before removing a device, switch off the pressure and ventthe lines.
▶ Completely drain the lines.
▶ During reinstallation check tightening torque of the bodyscrews.

Upper pilot air connection(for CFB and CFI)
Lower pilot air connection(for CFA and CFI)
Mark tabRequired spare part
• Diaphragm
Fastening types
Orifice DN(Diaphragm size)
65
80
100
Tab. 8:

Fastening types for diaphragms
PTFE

Diaphragm withbayonet catch
Fastening types for diaphragms

EPDM / FKM /laminated PTFE
Diaphragm
with threaded
connection

Diaphragm
Body
Fig. 19:

4 fastening screws

Replacement of diaphragm

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Type 2030, 2031, 2032, 2033,
2037
Electrical connection
Replacement of the diaphragm for control function A→ Clamp the valve body in a holding device (applies only tovalves not yet installed).
→ Pressurize lower pilot air port with compressed air (value as
indicated on the type label). This is required to detach thediaphragm without damage from the body.
→ Loosen fastening screws crosswise and remove actuator
together with diaphragm from the body.
→ Unscrew the old diaphragm. If attachment is with a bayonet
catch, remove the diaphragm by rotating it through 90° (“Tab.
8”).
→ Install new diaphragm in actuator (“Tab. 8”).
NOTE!
For diaphragms with threated connection:
If the pin is live, the diaphragm may be damaged.
▶ First screw on the diaphragm hand-tight, then loosen it by
one-half turn counterclockwise.
→ Align diaphragm. Mark tab vertical to the flow direction.
→ Place actuator together with diaphragm back on the body.
→ Lightly cross-tighten the body screws until the diaphragm lies
between the body and actuator.
Do not tighten the screws yet.
→ Actuate the diaphragm valve twice to position the diaphragmcorrectly.

26

english→ Tighten body screws without pressurization in diagonal pairs
in three stages (approx. 1/3, approx. 2/3, 3/3 of the tightening
torque), according to “Tab. 7”. The diaphragm should be positioned and pressed evenly all around the actuator and body.
Replacement of the diaphragm for control functions B and I→ Clamp the valve body in a holding device (applies only tovalves not yet installed).
→ Loosen the fastening screws crosswise and remove actuator
together with diaphragm from the body.
→ Unscrew old diaphragm. If attachment is with a bayonet
catch, remove the diaphragm by rotating it through 90° (“Tab.
8”).
→ Install new diaphragm in actuator (“Tab. 8”).
NOTE!
For diaphragms with threated connection:
If the pin is live, the diaphragm may be damaged.
▶ First screw on the diaphragm hand-tight, then loosen it by
one-half turn counterclockwise.
→ Align diaphragm. Mark tab vertical to the flow direction.
→ Place actuator together with diaphragm back on the body.
→ Lightly cross-tighten the body screws without pressurization
until the diaphragm lies between the body and actuator.
Do not tighten the screws yet.
→ Pressurize upper pilot air port with compressed air (value as
indicated on the type label) .

Type 2030, 2031, 2032, 2033,
2037
Malfunctions→ Actuate the diaphragm valve twice to position the diaphragmcorrectly.
→ Tighten body screws with pressurization in diagonal pairs inthree stages (approx. 1/3, approx. 2/3, 3/3 of the tightening
torque), according to Table (see “Tab. 7”). The diaphragmshould be positioned and pressed evenly all around theactuator and body.

Upper control air connection(for CFB and CFI)
Lower control air connection(for CFA and CFI)
Fig. 20:

Control air connection

11

MALFUNCTIONS

Malfunctions Cause / Remedial action
Actuator
Control connection interchanged*
does not
CFA: → Connect lower control connection
switch
CFB: → Connect upper control connection→ Upper control connection: Close
CFI
Lower control connection: Open* see “Fig. 20”
Control pressure too low
See pressure specifications on the type label.
Medium pressure too highSee pressure specifications on the type label.
Valve is not
Medium pressure too highsealedSee pressure specifications on the type label.
Control pressure too low
See pressure specifications on the type label.
Flow rate
PTFE diaphragm bulging
reducedReplace diaphragm.

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Type 2030, 2031, 2032, 2033,
2037
Spare parts

12

SPARE PARTSWARNING!

Risk of injury when opening the actuator body!
The actuator contains a tensioned spring. If the body is opened,
there is a risk of injury from the spring jumping out!
▶ Carefully open the actuator body and hold it in such a waythat any parts which jump out cannot injure anyone or damage anything.

Seal set

CAUTION!
Risk of injury and/or damage by the use of incorrect parts!
Incorrect accessories and unsuitable spare parts may cause
injuries and damage the device and the surrounding area.
▶ Use only original accessories and original spare parts from
Bürkert.
Types 2030, 2031, 2032, 2033 and 2037 are available as spareparts for the piston-controlled diaphragm valves.

Diaphragm• Seal set for actuator• DiaphragmFig. 21:28

englishSpare parts

Type 2030, 2031, 2032, 2033,
2037
Spare parts

12.1

Order table

Actuator size ø Orifice DN(Diaphragm size)[mm]Order numbers forseal sets

175

65, 80, 100

181 802225

80, 100

186 775

Tab. 9:Order numbers for seal sets

Orifice DN
Order numbers for diaphragms(Diaphragmsize)
EPDM (AD*)
65

688 428

FKM (FF*)E03/

677 691F01**

677 692F01**

677 693

F01**

E04**
80

688 429

E03/
E04**

100

688 430

E03/
E04**

Orifice
DN (Diaphragmsize)

Order numbers for diaphragms

65

677 681

80

100

Tab. 10:

Advanced PTFE(EU*)

Laminated
Gylon (ER*)

E02/E04PTFE**

679 743

E02/E04PTFE+
Hole**

586 616L08**

677 682

E02/E04PTFE**

679 744

E02/E04PTFE+
Hole**

586 617L08**

677 683

E02/E04PTFE**

679 745

E02/E04PTFE+
Hole**

-

-

PTFE
(EA*)

Order numbers for diaphragms* SAP-Code** Identification on the diaphragmThe data sheet and further information for the type canbe found on the Internet at: country.burkert.com
If you have any queries, please contact your Bürkert
sales office.

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Type 2030, 2031, 2032, 2033,
2037
Spare parts

13

TRANSPORT, STORAGE,DISPOSALNOTE!
Transport damages.
Inadequately protected equipment may be damaged duringtransport.
• During transportation protect the device against wet and dirtin shock-resistant packaging.
• Observe permitted storage temperature.
• Protect pneumatic connections from damage with protective
caps.
Incorrect storage may damage the device.
• For prolonged storage, slacken the body screws to preventthe diaphragm from becoming distorted.
• Identify slackened screws for reasons of safety.
• Store the device in a dry and dust-free location.
• Storage temperature. -40...+55 °C.
Environmentally friendly disposal▶ Follow national regulations regarding disposal andthe environment.
▶ Collect electrical and electronic devices separately
and dispose of them as special waste.
Further information country.burkert.com.

30

englishDANGER!
Risk of injury during re-installation. Risk of injury from discharge of medium through slackened body screws (acid,alkali, hot media)!
Before re-installing the valves, ensure that the body screws
have been tightened correctly.
▶ Before re-installation, check the tightening torque of the bodyscrews.

country.burkert.com