Burkert 2080 User Manual [en, de, fr]
www.burkert.com
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technical changes without notice.
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© 2008 - 2011 Bürkert Werke GmbH
Operating Instructions 1107/03_EU-ml_00805824
Operating Instructions
Bedienungsanleitung
Manuel d‘utilisation
Type 2080
BELLOWS VALVE
2/2-way valve with piston actuator and PTFE bellows
2/2-Wege Ventil mit Kolbenantrieb und PTFE-Faltenbalg
Vanne 2/2 voies avec entraînement à piston et soufflet PTFE
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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.
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2. SYMBOLS
The following symbols are used in these instructions.
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 a serious or
fatal injury.
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 tips and recommendations.
→ designates a procedure which you must carry out.
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3. INTENDED USE
WARNING!
Incorrect use of the bellows valve Type 2080 can
be dangerous to people, nearby equipment and the
environment.
• The device is designed for the controlled flow of liquid
and gaseous media.
• For use observe the permitted data, operating and application conditions which are described in the contract
documents as well as on the type plate and in the operating instructions in the chapters entitled “Structure and
Function” and “Technical Data”.
• The device may be used only in conjunction with thirdparty devices and components recommended and authorised by Bürkert.
• Correct transport, correct storage and installation and
careful use and maintenance are essential for reliable and
problem-free operation.
• Use the bellows valve Type 2080 only as intended.
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3.1. Possible errors in use
• Do not place any loads on the body (e.g. by placing
objects on it or standing on it).
• Do not make any external modifications to the valve
bodies.
• Do not introduce any aggressive or flammable media into
the pilot air connections of the system.
• Supply the media connections only with those media
which are specified as flow media in the chapter entitled
“Technical Data”.
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4. 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!
Risk of injury from high pressure.
• Before loosening the lines and valves, turn off the pressure and vent the lines!
Risk of burns/fire from continuous operation!
When metering hot media, the device may become very
hot.
• Always wear protective gloves when handling a device
which controls hot media.
• Keep readily flammable materials and media away from
the device.
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General hazardous situations.
To prevent injury, ensure that:
• The system cannot be activated unintentionally.
• 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.
Failure to observe this operating manual and its
operating instructions as well as unauthorized tampering with the device release us from any liability
and also invalidate the warranty covering the device
and accessories!
Type 2080
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5. GENERAL INFORMATION
5.1. Contact address
Germany
Bürkert Fluid Control Systems
Sales Center
Chr.-Bürkert-Str. 13-17
D-74653 Ingelfingen
Tel.: +49 (0)7940 - 10 91 111
Fax: +49 (0)7940 - 10 91 448
E-mail: info@de.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
5.2. Warranty
The warranty is only valid if the device valve Type 2080 is
used as intended in accordance with the specified application
conditions.
5.3. Information on the Internet
The operating instructions and data sheets for Type 2080 can
be found on the Internet at: www.burkert.com
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6. STRUCTURE AND FUNCTION
6.1. Modularity
The valve is modular in design and can be supplied with
different media connections (also customized) and actuator
versions according to the application case. It can be used
individually and also in blocks.
6.2. Structure
The valve consists of a pneumatically actuated piston actuator
with return spring, a stainless steel body and PTFE bellows.
The bellows are used to separate media. If the installation
location is appropriate, the valve is self-draining.
The materials used and the inner contours facilitate cleaning
(CIP/SIP).
The pneumatic actuator must be controlled externally via a
pilot valve or a valve island.
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Bolts for attaching the
actuator to the body
Pilot air connections
Threaded ports G 1/8
Connection CF B (NO)
Connection CF A (NC)
Flange Threaded port Welded end
G 3/8
Media connections
Notch for monitoring of
bellow leakage
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7. TECHNICAL DATA
7.1. Operating Conditions
Ambient temperature -10 ... +90 °C
Medium temperature -30 ... +150 °C
(see PT graph)
Media Neutral to aggressive gases
and liquids, technical vacuum
7.2. Restrictions
For Valves with a flow inlet over seat:
WARNING!
Risk of injury from water hammer.
If flow inlet over seat with liquid media, water hammers may
occur. As a consequence, lines or the device may burst
and medium flow out.
• Consider the type of flow inlet and the type of medium
for operation of the device.
• If flow inlet over seat before the use of liquid media,
to avoid water hammers, in case of doubt, clarify the
application conditions (medium, line length and crosssection) with the Bürkert sales office.
Type 2080
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7.3. Conformity
The device conforms to the EC directives according to the
EC Declaration of Conformity.
7.4. Standards
The conformity with EC guidelines is guaranteed in accordance with standards:
• EN 13463-1, EN 13463-5
7.5. PT graph
Permitted pressure-temperature compatibility of the PTFE
bellows
(Pressure value [bar]: Measured as overpressure to the
atmospheric pressure)
0
0 20 40 60 80 100 120
140
160 180
1
2
3
4
5
6
7
8
9
Permitted
range
P [bar]
T [°C]
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7.6. Mechanical Data
Dimensions See data sheet
Body material
Fitting Stainless steel 316L (1.4404)
Actuator Stainless steel 304 (1.4301)
Bellows PTFE
Bellows stroke 2.5 mm
Internal surface finish Ra = 0.8 µm
7.7. Fluidic data
Circuit functions
A
A
P
2/2-way valve, servo-assisted,
closed without pilot air pressure
by spring force, actuation with
pilot valve, valve island or similar.
B
B
P
2/2-way valve, servo-assisted,
opened without pilot air pressure
by spring force, actuation with
pilot valve, valve island or similar.
Fitting
Pressure range of medium Vacuum ... 8 bar
(see PT graph)
Back pressure tightness up to 8 bar
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Orifice DN 4 to DN 10
Line connections
Threaded port G 3/8
Welded ends
13.5 x 1.6 in accordance with ISO 4200
13 x 1.5 in accordance with DIN 1850-2
12.7 x 1.2 in accordance with BS 4825
Flange connection or
customized line connections
Actuator
Pilot air medium Compressed air 4.5 – 10 bar
(dry and filtered)
neutral gases
Pilot air connections Threaded port G 1/8
7.8. Actuator versions
Version
Operating
principle
Actuator Open - Closed CF A and CF B
Actuator Open - Closed
with position indicator
CF A and CF B
3 position actuator (with adjustable
intermediate position)
CF A
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7.9. Label (example)
Made in Germany
00450000
W14UN
CE
Bellows valve
Type 2080 NC DN10
Pmax 8bar
Ppilot 4-10bar
Ident. no.
Nominal pressure
Type, Circuit function, Orifice
Description
Nominal pressure of pilot valve
Type 2080
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8. INSTALLATION
8.1. Safety Instructions
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 installation, ensure a controlled restart.
8.2. Fluid Installation
DANGER!
Danger – high pressure!
Serious risk of injury when reaching into the equipment.
• Before loosening the lines and valves, turn off the pressure and vent the lines.
Check that the operating conditions correspond
with the performance data of the device.
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Installation position:
Installation can be in any position.
→ Install upright for self-draining (body to bottom and in
the case of threaded port and welded ends install at a
min. gradient of 1° for drainage of media).
Installation
→ Before installation, clean any possible dirt off the pipelines
and flange connections.
→ If necessary, install a dirt trap in front of the valve to protect
it from malfunctions.
Mesh size:
0.1 ... 0.4 mm
WARNING!
Danger - escaping medium!
Leaky connections with seals not properly seated.
• Fit all connections carefully and seal properly.
Seal the threaded port with a suitable sealing
material (PTFE tape is recommended).
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Use the correct size of open-ended wrench to
screw in the pipelines; do not use the valve actuator
as a screwdriver!
The device must not be subject to any lateral
tension forces. The device connections must be in
alignment with the lines!
→ Attach the valve according to the connections:
Threaded port by screwing in the pipes,
Welded connection by welding,
Flange by screwing on.
Flange interface on the valve
16 16
Ø 4.5
Ø 3.1; 6 deep;
Option for positioning pin ø 3
(ensure correct location for installation)
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16
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8.3. Option: Valve with 3 position
actuator (with adjustable
intermediate position)
Functions of the valve:
• Closed (without pilot air, by spring force),
• Partial stroke (pilot air simultaneously on X and Y),
• Full stroke (pilot air on X only).
Adjusting spindle
Lock nut
Stroke setting on the spindle
Flange version
Y
X
Flow plus minus
Type 2080
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Setting the intermediate position:
→ attach a suitable flow measuring device (measuring
cup, flow meter, etc.),
→ loosen the lock nut,
→ connect pilot air to X and Y,
→ open the medium supply,
→ set the required flow on the adjusting spindle
stroke range = 0 to 2.5 mm (rotating the spindle
clockwise reduces the flow),
→ switch off the pilot air,
→ tighten the lock nut.
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9. MAINTENANCE,
MALFUNCTIONS
9.1. Safety Instructions
DANGER!
Danger – high pressure in the equipment!
There is a serious risk of injury when reaching into the
equipment.
• Before loosening the lines and valves, turn off the
pressure and vent the lines.
WARNING!
Danger due to improper maintenance work!
Improper maintenance may result in injuries as well as
damage to the device and the surrounding area.
• Maintenance work may be carried out by authorised
technicians only and with the appropriate tools!
Danger due to unintentional activation of the equipment!
Unintentional activation of the equipment during maintenance
and repair work may result in injuries and/or damage.
• Take appropriate measures to prevent the equipment
from being unintentionally activated.
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9.2. Maintenance / Cleaning
The bellows situated between the medium compartment and
actuator ensure that the valve switches reliably and protect
the medium from contaminants coming from the actuator
side. These bellows are subject to symptoms of fatigue. If the
bellows are defective, medium will escape out of the leakage
detection opening. To prevent them from being destroyed,
the bellows should be changed prophylactically at regular
intervals (see instructions on changing the bellows). The valve
interior has no gaps and the inner compartment and bellows
have been designed with very smooth contours (surface
roughness max. 0.8 µm). The valve is CIP compatible (CIP =
cleaning in process) and SIP compatible (SIP = sterilization
in process).
9.3. Changing the bellows
Removing the actuator
→ Provide the required spare parts and a size 7 open-
ended wrench,
→ Interrupt the pilot air supply, vent and disconnect the
lines,
→ Interrupt the medium supply and vent the lines,
→ Loosen both fastening screws,
→ Remove the actuator.
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Changing the bellows
→ Unscrew the bellows from the spindle,
→ Clean the inner compartment of the body,
→ Manually screw the new bellows onto the spindle and
tighten them hand-tight.
Attaching the actuator
→ Clean the O-ring 25 x 2 FKM 70 in the body, check
whether it can be re-used and, if required, replace it
with a new O-ring
→ Place the actuator with new bellows on the body;
ensure that the bores in the actuator are correctly
aligned with the thread in the body
→ Attach the actuator to the body with the fastening
screws (tightening torque from 2 to 2.2 Nm).
Restarting the bellows valve
→ Connect the pilot air line,
→ Open the pilot air,
→ Open the medium supply,
→ Conduct a function and leak test,,
→ If the valve functions reliably, it can be restarted.
Type 2080
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Exploded drawing of changing spare parts, Type 2080
Hexagon screws M4 x 50 in accordance with DIN 933-A4 for attaching
the actuator to the body
Actuator
Spindle
PTFE bellows
O-ring 25 x 2 FKM 70
Body (threaded port version)
9.4. Malfunctions
If malfunctions occur, check:
→ the line connections,
→ the operating pressure,
→ the pilot air supply which actuates the valve,
→ the bellows and, if required, change them (see chapter
9.3).
If the valve still does not switch, please contact your
Bürkert Service.
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10. REPLACEMENT 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 only original accessories and original replacement
parts from Bürkert.
Order table of spare parts
Spare part Description Order no.
Bellows Material PTFE 799 845
O-ring 25 x 2.0 N-FKM 70 914 378
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11. TRANSPORT, STORAGE,
DISPOSAL
NOTE!
Transport damages!
Inadequately protected equipment may be damaged
during transport.
• During transportation protect the device against wet
and dirt in shock-resistant packaging.
• Avoid exceeding or dropping below the allowable
storage temperature.
Incorrect storage may damage the device.
• Store the device in a dry and dust-free location!
• Storage temperature: -20 ... +65 °C.
Damage to the environment caused by device components contaminated with media.
• Observe applicable regulations on disposal and the
environment.
• Dispose of the device and packaging in an environmentally friendly manner.
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