Burkert 2002 User Manual [en, de, fr]

Type 2000/2002

2/2-Way Angle Seat Valve, 3/2-Way Globe Valve
2/2-Wege Schrägsitzventil, 3/2-Wege Geradsitzventil
Vanne à siège incliné 2/2 voies, vanne à siège droit 3/2 voies

Operating Instructions

Bedienungsanleitung
Manuel d‘utilisation

We reserve the right to make technical changes without notice.
Technische Änderungen vorbehalten.
Sous réserve de modifications techniques.

© 2003 - 2013 Bürkert Werke GmbH

Operating Instructions 1309/13_EU-ML_00893086 / Original DE

Type 2000/2002

1. OPERATING INSTRUCTIONS ...................................................................4

1.1. Symbols ..............................................................................................4

1.2. Definition of the term "Device" ...................................................... 4

2. AUTHORIZED USE .........................................................................................5

2.1. Restrictions ........................................................................................5

3. BASIC SAFETY INSTRUCTIONS .............................................................5

3.1. Instructions for use in explosion protected area ..............................

(Ex area) ............................................................................................................... 6

3.2. Special conditions ...........................................................................7

4. GENERAL INFORMATION ...........................................................................8

4.1. Contact addresses ..........................................................................8

4.2. Warranty ............................................................................................. 8

4.3. Information on the Internet ............................................................. 8

5. PRODUCT DESCRIPTION ...........................................................................8

5.1. General Description ........................................................................8

5.2. Properties ........................................................................................... 8

6. STRUCTURE AND FUNCTION..................................................................9

6.1. Structure ............................................................................................9

6.2. Function ............................................................................................10

7. TECHNICAL DATA ........................................................................................12

7.1. Conformity .......................................................................................12

7.2. Standards .........................................................................................12

7.3. Approvals .........................................................................................12

7.4. Type label .........................................................................................12

7.5. Operating Conditions ....................................................................13

7.6. General Technical Data ................................................................17

8. ASSEMBLY .......................................................................................................18

8.1. Safety instructions .........................................................................18

8.2. Before Installation ..........................................................................19

8.3. Installation ........................................................................................19

8.4. Pneumatic Connection .................................................................21

9. START-UP ......................................................................................................... 23

9.1. Control pressure.............................................................................23

9.2. Flow direction above the seat .....................................................23

9.3. Flow direction below the seat .....................................................23

10. DISASSEMBLY ............................................................................................ 24

11. MAINTENANCE, TROUBLESHOOTING .......................................... 24

11.1. Safety instructions .......................................................................24

11.2. Maintenance Work .......................................................................25

11.3. Malfunctions ..................................................................................25

12. SPARE PARTS ............................................................................................. 26

12.1. Replacement part sets ................................................................26

13. REPAIRS ......................................................................................................... 29

14. PACKAGING, TRANSPORT, STORAGE .......................................... 29

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Type 2000/2002

Operating Instructions

1. OPERATING INSTRUCTIONS

The operating instructions describe the entire life cycle of the device.
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.

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

DANGER!

Warns of an immediate danger!

• Failure to observe the warning may result in a fatal or serious
injury.

WARNING!

Warns of a potentially dangerous situation!

• Failure to observe the warning may result in serious injuries or death.

CAUTION!

Warns of a possible danger!

• Failure to observe this warning may result in a moderately
severe or minor injury.

NOTE!

Warns of damage to property!

• Failure to observe the warning may result in damage to the
device or the equipment.

Designates additional significant information, tips and
recommendations.

Refers to information in these operating instructions or in
other documentation.

→ designates a procedure which you must carry out.

1.2. Definition of the term "Device"

In these instructions, the term "device" always refers to the angle
seat valve type 2000 and/or the globe valve type 2002.

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Type 2000/2002

Authorized Use

2. AUTHORIZED USE

Non-authorized use of the 2/2-way angle seat valve type 2000
and 3/2-way globe valve type 2002 may be a hazard to people,
nearby equipment and the environment.

• The device is designed for the controlled flow of liquid and
gaseous media.

• The admissible data, the operating conditions and conditions of
use specified in the contract documents, operating instructions
and on the type label are to be observed during use. The desig­nated application cases are specified in the chapter entitled “5.
Product description”.

• 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 and careful
use and maintenance are essential for reliable and problem-free
operation.

• Use the device only as intended.

2.1. Restrictions

If exporting the system/device, observe any existing restrictions.

3. BASIC SAFETY INSTRUCTIONS

These safety instructions do not make allowance for any

• contingencies and events which may arise during the installation,
operation and maintenance of the devices.

• local safety regulations; the operator is responsible for observing
these regulations, also with reference to the installation personnel.

DANGER!

Danger – high pressure!

• Before loosening the lines and valves, turn off the pressure and
vent the lines.

Risk of electric shock!

• 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 burns!

The surface of the device may become hot during long-term
operation.

• Do not touch the device with bare hands.

For model with explosion protection: Danger of explosion!

• Observe the specifications on the certificate of conformity and
ATEX instructions.

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Type 2000/2002

Basic safety instructions

General hazardous situations.

To prevent injury, ensure that:

• The system cannot be activated unintentionally.

• Do not use in areas which are prone to vibrations.

• Installation and repair work may be carried out by authorized
technicians only and with the appropriate tools.

• After an interruption in the power supply or pneumatic supply,
ensure that the process is restarted in a defined or controlled
manner.

• The device may be operated only when in perfect condition and
in consideration of the operating instructions.

• The general rules of technology apply to application planning
and operation of the device.

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 “7. Technical Data”.

• Do not put any loads on the valve (e.g. by placing objects on it
or standing on it).

• Do not make any external modifications to the valves. Do not paint
the body parts or screws.

The angle seat valve type 2000 / globe valve type 2002 was
developed with due consideration given to accepted safety
rules and is state-of-the-art. However, dangers can still arise.

3.1. Instructions for use in
explosion protected area
(Ex area)

3.1.1. Values in the Ex area

The values for use within the Ex area are dependent on
the ambient temperature, i.e. the temperature class (gas),
surface temperature (dust), and medium temperature.

3.1.2. Media in the Ex area

If explosive media are used, this may create an additional
risk of explosion!

3.1.3. Use in hazardous area

The user must ensure that the appliance is used in Zone
1/21 or 2/22 only.

3.1.4. Control unit in the Ex area

The control unit may restrict use in an explosive atmosphere.
Follow operating instructions for control unit.

3.1.5. Cleaning in the Ex area

Test cleaning agent for approval in explosive atmosphere.

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Type 2000/2002

Basic safety instructions

3.1.6. Adhesive label for Ex area

II 2G c IIC T4

2D c T135°C

II

Fig. 1: Label Ex area

WAR
W

AR

: N

NING

ot valid when Non-Ex devices added

NING

otential electrostatic charging hazard

: P

-see instructions

3.1.7. Temperature ranges in the Ex area

max. T

Environment

<– DN 25 > DN 25
T6 85 °C -10 ... +45 °C -10 ... +55 °C
T5 100 °C -10 ... +60 °C -10 ... +70 °C
T4 135 °C -10 ... +95 °C -10 ... +105 °C

Tab. 1: Temperature ranges Ex area

140

130
120
110

Temperature class T5

100

Temperature class T6

90
80
70
60
50
40
30
20

Ambient temperature [°C]

10

Temperature class T4

10 20 30 40 50 60 70 80 90 100 110 120 1300

Medium temperature [°C]

Fig. 2: Temperature ranges Ex area

Medium

Valves

DN

<
–

Valves

DN

>

25

25

3.2. Special conditions

To ensure potential equalization, ground the valve body to the pipe
system using an electrically conductive connection.

For use in Ex area zone (gas) 1 and 2,

zone (dust) 21 and 22, applies:

DANGER!

Danger of explosion caused by electrostatic charge!

In the event of a sudden discharge from electrostatically charged
devices or individuals there is a risk of an explosion in the Ex area.

• Implement suitable measures to ensure that there are no elec­trostatically charges in the Ex area.

• Only clean the surface of the device by gently wiping with a
damp or anti-static cloth.

Follow instructions for use in the Ex area! See chapter “3.1”.

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Type 2000/2002

General information

4. GENERAL INFORMATION

4.1. Contact addresses

Germany

Bürkert Fluid Control Systems
Sales Center
Christian-Bürkert-Str. 13-17
D-74653 Ingelfingen
Tel. + 49 (0) 7940 - 10 91 111
Fax + 49 (0) 7940 - 10 91 448
E-mail: [e-mail]

International

Contact addresses are found on the final pages of the printed
operating manual.

You can also find information on the Internet under:

www.burkert.com

4.2. Warranty

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

4.3. Information on the Internet

The operating instructions and data sheets for Type 2000/2002 can
be found on the Internet at: www.burkert.com

5. PRODUCT DESCRIPTION

5.1. General Description

The externally controlled angle seat valve type 2000 / globe valve type
2002 is suitable for liquid and gaseous media.

It uses neutral gases or air (control media) to control the flow-rate
of water, alcohol, oil, fuel, hydraulic fluid, saline solution, lye, organic
solvent and steam (flow media).

Follow instructions for use in the Ex area! See chapter “3.1”.

5.2. Properties

• High tightness by self-adjusting packing glands (spindle sealing
element).

• High seat tightness by swivel plate.

• High flow values by the streamlined valve body made of stainless
steel.

• Actuator can be rotated steplessly through 360°.

5.2.1. Options

• Activation unit
Different versions of the activation units are available depending
on the requirement.

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Type 2000/2002

Structure and Function

Follow instructions for use in the Ex area! See chapter “3.1”.

• Stroke limitation
Limit of the maximum open position/flow rate by means of
adjusting screw.

• Feedback indicator
The device features mechanical limit switches or inductive prox­imity switches.

5.2.2. Device versions

The angle seat valve / globe valve is available for the following actuator
sizes:

Type 2000: ø 40 mm to ø 125 mm

Type 2002: ø 50 mm to ø 125 mm

5.2.3. Restrictions

WARNING!

Risk of injury from water hammer.

A water hammer could crack the lines and device.

• Use valves with flow inlet above seat for gaseous media and
steam only.

6. STRUCTURE AND FUNCTION

6.1. Structure

The angle seat valve / globe valve consists of a pneumatically actuated
piston actuator and a 2-way valve body / 3-way valve body. The actuator
is manufactured from PA or PPS. The tried and tested, self-adjusting
packing gland ensures high tightness. The flow-enhancing valve body
made of stainless steel or red bronze enables high flow values.

Transparent cap with
position indicator

Actuator cover

Control air connection

Actuator body

Line connector

Angle-seat body

Numbers for indicating
the direction of flow

Type 2002 Type 2000

Globe body

Follow instructions for use in the Ex area! See chapter “3.1”.

Fig. 3: Structure and description

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Type 2000/2002

Structure and Function

6.2. Function

Depending on the version, the seat of the valve is closed with or against
the medium flow.

Spring force (CFA) or pneumatic control pressure (CFB and CFI)
generates the closing force on the swivel plate. The force is transferred
via a spindle which is connected to the actuator piston.

6.2.1. Control function (CF) for Type 2000
2/2-way angle seat valve

Control function (CF)

A

CFA

CFB

CFI

P

A

P

A

P

Tab. 2: Type 2000 - Control functions

WARNING!

For control function I – Danger if control pressure fails!

For control function I control and resetting occur pneumatically. If
the pressure fails, no defined position is reached.

• To ensure a controlled restart, first pressurize the device with
control pressure, then switch on the medium.

Closed by spring force in rest
position.

Opened by spring force in rest
position.

Actuating function via reciprocal
pressurization.

6.2.2. Control function (CF) and flow
modes of operation for
type 2002, 3/2-way globe valve

In the case of the globe valve Type 2002 different operating
principles can be obtained with the same control function by
swapping the pressure and working connections.

Control function A (CFA)

In rest position line connector 1 closed by spring force.

modes of
operation

3

2

1

A, B: Working connections
P, P1, P2: Pressure connections
R: Pressure relief

Tab. 3: Control function A (CFA)

Flow

C P A R

D R A P

E P1 A P2

F A P B

Connection

1 2 3

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Type 2000/2002

Structure and Function

Flow modes of operation

In rest position pressure connection 1

C

D

E

F

Tab. 4: Type 2001 - flow modes of operation

closed, working connection 2 relieved.

In rest position pressure connection 3
connected to working connection 2,
relief 1 closed.

Mixing valve
In rest position pressure connection 3

connected to working connection 2,
pressure connection 1 closed.

Distribution valve
In rest position pressure connection 2

connected to working connection 3,
working connection 1 closed.

6.2.3. Incoming flow below seat

Depending on the version, the valve is closed against the medium
flow by spring force (control function A, CFA) or by control pressure
(control function B, CFB).

As the medium pressure is under the swivel plate, this pressure
contributes to the opening of the valve.

WARNING!

Leaking seat if minimum control pressure is too low or
medium pressure too high!

If the minimum control pressure is too low for CFB and CFI or the
permitted medium pressure is exceeded, the seat may leak.

• Observe minimum control pressure.

• Do not exceed medium pressure.

• See chapter „7.5.2. Pressure ranges“.

CFA/CFI CFB/CFI

Fig. 4: Incoming flow below seat (closing against medium)

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Type 2000/2002

Technical Data

6.2.4. Incoming flow above seat

The valve is closed by spring force (control function A, CFA) with
the medium flow. As the medium pressure is over the swivel plate, it
supports the closing process of the valve and also contributes to the
sealing of the valve seat.

The valve is opened by the control pressure.

WARNING!

Risk of injury from water hammer.

A water hammer could crack the lines and device.

• Use valves with flow inlet above seat for gaseous media and
steam only.

To ensure complete opening, the minimum control pressure
must be used!

Follow instructions for use in the Ex area! See chapter “3.1”.

Fig. 5: Incoming flow above seat (closing with medium)

7. TECHNICAL DATA

7.1. Conformity

The angle seat valve type 2000 / globe valve type 2002 conforms
with the EC Directives according to the EC Declaration of Conformity.

7.2. Standards

The applied standards, which verify conformity with the EC Direc­tives, can be found on the EC-Type Examination Certificate and / or
the EC Declaration of Conformity.

7.3. Approvals

The product is authorized for use in Zone 1 and 21 according to the
ATEX directive 94/9/EC of category 2 G/D.

Follow instructions for use in the Ex area! See chapter “3.1”.

7.4. Type label

Direction of flow Orifice

Control function

Connection type

Control pressure

Identification number

Flow 1 2
2000 A 50,0 NBR RG

G 2 P med 16 bar
Pilot 1,6 - 10 bar

Made in Germany

00182076

Fig. 6: Example of the type label

W1X LU

Seal material

R

„R“ : variantType
Body material
Nominal pressure

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Type 2000/2002

Technical Data

7.5. Operating Conditions

7.5.1. Temperature ranges

Actuator

size

[mm]

40 - 63 PA –10 ... see “Fig. 7” –10 ... see “Fig. 7”

80 - 125 PA –10 ... +180 °C –10 ... +60 °C

40 - 80 PPS –10 ... +180 °C +5 ... +140 °C

100 - 125 PPS –10 ... +180 °C +5 ... +90 °C

Tab. 5: Temperature ranges

temperature

Fig. 7: Temperature range of the maximum medium and ambient

2) * briefly up to max. 140 °C

Actuator

material

Temperature ranges

Medium

Environment

(for PTFE seal)

2)

1) If a pilot valve is used, the max. ambient temperature

is + 55 °C

Ambient

70

60

[°C]

50

40

30

20

100 120 140 160 180 200

∅

50

∅

40

∅

63

Medium
temperature [°C]

temperature for PA actuators

1)

7.5.2. Pressure ranges

Maximum control pressure 2/2-way and 3/2-way valve:

Actuator

material

PA

PPS

Tab. 6: Maximum control pressure

Maximum operating pressure 3/2-way valve, control function A:

Orifice
[mm]

Actuator

size

[mm]

15 - 20

50 11 16 4.4
63 16 16 4.7

25 63 10 16 4.9
32 - 40

80 9 16 6.0

125 14 16 3.4

50 125 10 16 4.3

Tab. 7: Max. operating pressure

For control function F the maximum permitted operating
pressure is 16 bar.

Actuator size

Max. control pressure

[mm]

40 - 80 10

125 7

40 - 80 10

125 7

Max. medium pressure up to
180 °C [bar] direction of flow

1 → 2 2 → 3, 2 → 1

[bar]

Min.

control

pressure

[bar]

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Type 2000/2002

Technical Data

7.5.3. Minimum control pressures

Incoming flow below seat

(medium flow against the closing direction of the valve)
The required minimum control pressure P

Actuator size

40 50 63 80 100 125

[mm]

[bar]

P

min

4.0 3.9 4.5 5.0 4.4 3.2

The following graphs illustrate the required minimum control pressure
depending on the medium pressure for control functions B and I
(incoming flow below seat).

CFB / CFI, ø 40 mm

Medium

pressure

[bar]

DN 15

Fig. 8: Pressure graph, actuator ø 40 mm, control function B and I

for control function A is:

min

DN 20

Control
pressure [bar]

CFB / CFI, ø 50 mm

DN 15

DN 20

Medium

pressure

[bar]

DN 25

Control
pressure [bar]

Fig. 9: Pressure graph, actuator ø 50 mm, control function B and I

CFB / CFI, ø 63 mm

Medium

pressure

[bar]

DN 20

DN 25

DN 32

DN 40

DN 50

Control
pressure [bar]

Fig. 10: Pressure graph, actuator ø 63 mm, control function B and I

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Type 2000/2002

Technical Data

CFB / CFI, ø 80 mm

Medium

pressure

[bar]

DN 25

DN 40

DN 50

DN 65

Control
pressure [bar]

DN 32

Fig. 11: Pressure graph, actuator ø 80 mm, control function B and I

CFB / CFI, ø 100 mm

Medium

pressure

[bar]

DN 50

DN 65

Control
pressure [bar]

DN 32

DN 40

Fig. 12: Pressure graph, actuator ø 100 mm,

control function B and I

CFB / CFI, ø 125 mm

DN 40

DN 50

Medium

pressure

[bar]

DN 65

Fig. 13: Pressure graph, actuator ø 125 mm,

control function B and I

Control
pressure [bar]

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Type 2000/2002

Technical Data

Incoming flow above seat
(medium flow with the closing direction of the valve)

The following graphs illustrate the required minimum control pressure
depending on the medium pressure for control function A (incoming
flow above seat).

CFA, ø 40 mm

DN 15

Medium

pressure

[bar]

DN 20

Control
pressure [bar]

Fig. 14: Pressure graph, actuator ø 40 mm, control function A

CFA, ø 50 mm

DN 20

DN 15

Medium

pressure

[bar]

DN 25

Control
pressure [bar]

Fig. 15: Pressure graph, actuator ø 50 mm, control function A

CFA, ø 63 mm

Medium

pressure

[bar]

DN 25

DN 40

DN 50

Control
pressure [bar]

DN 20

DN 32

Fig. 16: Pressure graph, actuator ø 63 mm, control function A

CFA, ø 80 mm

Medium

pressure

[bar]

DN 25

DN 40

DN 50

DN 65

Control
pressure [bar]

DN 32

Fig. 17: Pressure graph, actuator ø 80 mm, control function A

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Type 2000/2002

Technical Data

CFA, ø 100 mm

Medium

pressure

[bar]

DN 50

DN 65

Control
pressure [bar]

DN 32

DN 40

Fig. 18: Pressure graph, actuator ø 100 mm, control function A

CFA, ø 125 mm

DN 40

DN 50

Medium

pressure

[bar]

DN 65

Control
pressure [bar]

Fig. 19: Pressure graph, actuator ø 125, control function A

7.6. General Technical Data

Control functions (CF)

Control function A Closed by spring force in rest

position

Control function B Opened by spring force in rest

position

Control function I Actuating function via reciprocal

pressurization

Materials

Valve Type 2000

angle seat valve

Body Socket body:

Red bronze,
stainless steel 316L

Welded and clamped
body:

Stainless steel 316L
Actuator PA or PPS PA (PPS on request)
Seal PTFE

(NBR, FKM, EPDM on request)

Packing
gland (with
silicone
grease)

Stainless-steel body: PTFE V rings with spring

compensation

Red bronze body: PTFE and FKM V rings with

spring compensation

Tab. 8: Materials

Type 2002

3/2-way globe valve

Red bronze

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Type 2000/2002

Assembly

Media

Control medium Neutral gases, air
Flow media Water, alcohols, oils, fuels, hydraulic liquid,

saline solutions, lyes, organic solvents,
steam

Connections

Type 2000

angle seat valve

Socket:
G 3/8 to G 2 1/2
(NPT on request)

Welded connections:
in accordance with EN ISO 1127,
DIN 11850 R2
clamped connections:
in accordance with ISO 2852,
ASME BPE,
BS 4825

Tab. 9: Connections

Other connections on request.

Installation position any position, preferably with

actuator face up

Type 2002

3/2-way globe valve

G 1/2 to G 2

8. ASSEMBLY

8.1. Safety instructions

DANGER!

Risk of injury from high pressure in the equipment!

• Before dismounting pneumatic lines or valves, turn off the pres-

sure and vent the lines.

WARNING!

Risk of injury from improper assembly!

• 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.

WARNING!

For control function I – Danger if control pressure fails!

For control function I control and resetting occur pneumatically. If
the pressure fails, no defined position is reached.

• To ensure a controlled restart, first pressurize the device with

control pressure, then switch on the medium.

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Type 2000/2002

Assembly

8.2. Before Installation

• Any installation position is possible, preferably with actuator face up.

• Before connecting the valve, ensure the pipelines are flush.

• Observe direction of flow (see type label).

8.2.1. Preparatory work

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

Devices with welded body:

Removing the actuator from the valve body:

→ Clamp valve body into a holding device.

NOTE!

Damage to the seat seal or the seat contour!

• When removing the actuator, ensure that the valve is in the
open position.

→ Control function A and I:

Pressurize lower control air connection with compressed air
(5 bar): Valve opens.

→ Place a suitable open-end wrench on the wrench flat of the nipple.
→ Unscrew the actuator off the valve body.

Devices with socket body:

→ Do not remove actuator unless this is a customer-specific

requirement.

8.3. Installation

WARNING!

Risk of injury from improper installation!

Assembly with unsuitable tools or non-observance of the tight­ening torque is dangerous as the device may be damaged.

• For installation use an open-end wrench, never a pipe wrench.

• Observe the tightening torque (see “Tab. 10: Tightening
torques”).

Devices with approval in accordance with DIN EN 161

In accordance with DIN EN 161 "Automatic shut-off valves for gas
burners and gas installations" a dirt trap must be connected upstream
of the valve and prevent the insertion of a 1 mm plug gauge.

8.3.1. Installing the body

Welded body:

→ Weld valve body in pipeline system.

Other body designs:

→ Connect body to pipeline.

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Type 2000/2002

Assembly

8.3.2. Installing the actuator (welded body)

Graphite seal

Fig. 20: Graphite seal

→ Check graphite seal and, if required, replace. Remove all

residues when replacing seal.

WARNING!

Danger if incorrect lubricants used!

Unsuitable lubricant may contaminate the medium. In oxygen
applications there is a risk of an explosion!

• In specific applications, e.g. oxygen or analysis applications, use
appropriately authorized lubricants only.

→ Grease nipple thread before re-installing the actuator

(e.g. with Klüber paste UH1 96-402 from Klüber).

NOTE!

Damage to the seal on the swivel plate!

• When installing the actuator, ensure that the valve is in the open
position.

→ Control function A and I:

Pressurize lower control air connection with compressed air
(5 bar) so that the swivel plate is lifted off the valve seat and is
not damaged when screwed in.

→ Screw actuator into the valve body.

Tightening torques:

Orifice

(DN)

15 45 ± 3
20 50 ± 3
25 60 ± 3
32 65 ± 3
40 65 ± 3
50 70 ± 3
65 70 ± 3

Tab. 10: Tightening torques

If the body is stainless steel, grease the nipple thread with
e.g. Klüber paste UH1 96-402.

Tightening torque

(Nm)

20

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Type 2000/2002

Assembly

8.3.3. Rotating the Drive

The position of the connections can be aligned steplessly by rotating
the drive through 360 °.

NOTE!

Damage to the seal on the swivel plate!

• When turning the actuator, ensure that the valve is in the open
position.

Procedure:

→ Clamp the valve body into a holding device (applies only to valves

not yet installed).

→ For control function A and I pressurize the lower control air con-

nection with compressed air (5 bar): Valve opens.

→ Using a suitable open-end wrench, counter the wrench flat on

the pipe.

→ Place a suitable open-end wrench on the hexagon of the actuator

(see “Fig. 21”).

WARNING!

Risk of injury from discharge of medium and pressure!

If the direction of rotation is wrong, the body interface may
become detached.

• Turn the actuator in the specified sense of direction only
(see “Fig. 21”).

→ By turning the open-end wrench clockwise (viewed from above),

move the actuator into the required position.

Open-end wrench

for turning the

actuator

Fig. 21: Turning with open-end wrench

8.4. Pneumatic Connection

DANGER!

Risk of injury from high pressure in the equipment!

• Before dismounting pneumatic lines or valves, turn off the pres­sure and vent the lines.

Open-end wrench
for securing the
nipple

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Type 2000/2002

Assembly

WARNING!

Risk of injury from unsuitable connection hoses!

Hoses which cannot withstand the pressure and temperature
range may result in hazardous situations.

• Use only hoses which are authorized for the indicated pressure
and temperature range.

• Observe the data sheet specifications from the hose
manufacturers.

For control function I – Danger if control pressure fails!

For control function I control and resetting occur pneumatically. If
the pressure fails, no defined position is reached.

• To ensure a controlled restart, first pressurize the device with
control pressure, then switch on the medium.

8.4.1. Connection of the Control Medium

If the position of the control air connections is unfavorable
for installation of the hoses, these can be steplessly aligned
by turning the actuator through 360°.
The procedure is described in chapter “8.3.3. Rotating the
Drive”.

Control function A: On the lower connection of the actuator.

Control function B: On the upper connection of the actuator.

Control function I:

On the upper and lower connections of the actuator.
Pressure on the lower connection opens the valve,
pressure on the upper connection closes the valve.

Control

function

A
B

I

Fig. 22: Control air connection

If used in an aggressive environment, we recommend
conveying all free pneumatic connections into a neutral
atmosphere with the aid of a pneumatic hose.

Control air hose:

Control air hoses of sizes 1/4" or 1/8" (actuator ø 40 mm) can be used.

Control air

connection

Top Bottom

closes opens

the valve

Control air

Connections

Top

Bottom

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Type 2000/2002

Assembly

9. START-UP

• Observe the type label specifications and information on
pressure and temperature values in section “7. Technical
Data”.

• Observe the information on the Ex area in section 3.1!

9.1. Control pressure

WARNING!

For control function I – Danger if control pressure fails!

If the pressure fails, no defined position is reached.

• For a controlled restart, initially pressurize the equipment with
control pressure and then connect the medium.

→ Set the control pressure according to the type label specifica-

tions, see section “7.4” and flow direction (section “9.2” and
“9.3”).

9.2. Flow direction above the seat

Control function A, CFA: closes by spring force with the medium flow.
The medium pressure supports the closure and seal of the valve seat.
The valve is opened by the control pressure.

WARNING!

Risk of injury due to water hammer!

A closing shock can cause lines and the equipment to burst.

• Only use valves with the flow direction above the seat for gas­eous media.

To ensure complete opening, the minimum control pressure
must be used!
Observe the information on the Ex area in section 3.1!

9.3. Flow direction below the seat

Control function A, CFA: closes by spring force against the medium flow.
Control function B, CFB: closes with the control pressure against the
medium flow. The medium pressure supports the opening of the valve.

CFA/CFI

Flow direction below the seat
(closing against the medium)

Fig. 23: Flow direction above/below the seat

WARNING!

Seat leaks caused by the minimum control pressure being too
low (on CFB and CFI) or the medium pressure being too high!

• Observe the minimum control pressure and medium pressure
(see „5.5.1. Pressure ranges“).

CFB/CFI

CFA
Flow direction above the seat

(closing with the medium)

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Type 2000/2002

Disassembly

10. DISASSEMBLY

DANGER!

Risk of injury from discharge of medium and pressure!

It is dangerous to remove a device which is under pressure due to
the sudden release of pressure or discharge of medium.

• Before removing a device, switch off the pressure and vent the
lines.

Procedure:

→ Loosen pneumatic connection.
→ Remove device.

11. MAINTENANCE,
TROUBLESHOOTING

11.1. Safety instructions

DANGER!

Risk of injury from high pressure in the equipment!

• Before dismounting pneumatic lines or valves, turn off the pres­sure and vent the lines.

Risk of injury from electric shock (only in conjunction with
corresponding actuators)!

• 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!

WARNING!

Risk of injury from improper maintenance!

• Maintenance 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 maintenance, ensure a controlled restart.

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Type 2000/2002

Maintenance, Troubleshooting

WARNING!

For control function I – Danger if control pressure fails!

For control function I control and resetting occur pneumatically. If
the pressure fails, no defined position is reached.

• To ensure a controlled restart, first pressurize the device with
control pressure, then switch on the medium.

11.2. Maintenance Work

Actuator:

The actuator is maintenance-free provided it is used according to these
operating instructions.

Wearing parts of the angle seat valve / 3/2-way globe valve:

• Seals

• Swivel plate

→ If leaks occur, replace the particular wearing parts with an appro-

priate spare part (see Chapter “12. Spare parts”).

11.2.1. Recommended maintenance
intervals

The valve should be visually inspected once a year. Shorter mainte­nance intervals are recommended depending on application condi­tions. The visual inspection includes the pneumatic connections and
the medium connections as well as the deaeration bore in the pipe.

11.2.2. Cleaning

Commercially available cleaning agents can be used to clean the
outside.

NOTE!

Avoid causing damage with cleaning agents!

• Before cleaning, check that the cleaning agents are compatible
with the body materials and seals.

Follow instructions for use in the Ex area! See chapter “3.1”.

11.3. Malfunctions

Malfunction Remedial action

Actuator
does not
switch

Control air connection interchanged
CFA: Connect lower control air connection
CFB: Connect upper control air connection
CFI: Lower control air connection: Open

Upper control air connection: Close

Control pressure too low

3)

→ See pressure specifications on the type label

Medium pressure too high

→ See pressure specifications on the type label

Direction of flow interchanged

→ See direction or arrow on the type label

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Type 2000/2002

Spare parts

Malfunction Remedial action

Valve is not
sealed

Dirt between seal and valve seat

→ Installing dirt trap

Seat seal worn

→ Installing new swivel plate

Direction of flow interchanged

→ See direction or arrow on the type label

Medium pressure too high

→ See pressure specifications on the type label

Control pressure too low

→ See pressure specifications on the type label

Valve is
leaking on
the release
bore

Tab. 11: Malfunctions

3) see “8.4. Pneumatic Connection”

Packing gland worn

→ Renew packing gland or replace actuator

12. SPARE PARTS

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 original accessories and original spare parts from Bürkert
only.

12.1. Replacement part sets

The following replacement part sets are available for the angle seat
valve Type 2000 / globe valve Type 2002:

• Valve set
consists of swivel plate, pin and graphite seal.

• Seal set for actuator
consisting of the sealing and wearing parts of the actuator.

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Type 2000/2002

Spare parts

12.1.1. Replacement part sets for angle
seat valve

Seal set SET 5

Valve set
SET 6

FKM only for body
material red bronze

12.1.2. Replacement part sets for 3/2-way
globe valve

Seal sets

SET 5

(as for angle seat

valve)

Valve set

(on request)

Fig. 24: Spare parts for angle seat valve

Fig. 25: Spare parts for globe valve

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