Burkert 0262 Bedienungsanleitung
Bedienungsanleitung
Manuel d‘utilisation
Operating Instructions
Type 0262, 0263
2/2-way diaphragm control valve
2/2-Wege-Membransteuerventil
Vanne de commande à membrane 2 voies
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1 THE OPERATING INSTRUCTIONS
The operating instructions contain important information.
▶Read the instructions carefully and follow the safety instructions
in particular.
▶Keep the instructions and provide them to every user.
▶The liability and warranty do not apply if the procedures in the
operating instructions are not followed.
1.1 Symbols
▶Highlights instructions to avoid a danger.
→Designates a procedure which you must carry out.
Warning of injuries:
Danger!
Immediate danger! Serious or fatal injuries.
Warning!
Possible danger! Serious or fatal injuries.
Caution!
Danger! Moderate or minor injuries.
Warning of damage:
note!
Table of contents
1 The operating instructions.......................................................... 2
2 Intended use.............................................................................. 3
3 Basic safety instructions ............................................................ 4
4 Product description ................................................................... 5
5 Structure and function ............................................................... 5
6 Technical data............................................................................ 7
7 Assembly................................................................................... 9
8 Start-up ................................................................................... 11
9 Removal .................................................................................. 12
10 Spare parts.............................................................................. 12
11 Transportation, storage, disposal ............................................. 14
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2 INTENDED USE
Non-intended use of the diaphragm control valve Type 0262 and
Type 0263 may be dangerous to people, nearby equipment and
the environment.
▶The device is designed for controlling the ow rate of liquid and
gaseous media.
▶In potentially explosive atmospheres, only use devices approved
for use in those areas. These devices are labeled with a separate
Ex type label. For such use, note the information provided on
the separate Ex type label and the additional explosion-related
information or separate explosion-related operating instructions.
▶The device is approved for use in Zone 1 and 21 in accordance
with ATEX directive 2014/34/EU category 2 G/D.
▶Use according to the authorized data, operating conditions, and
conditions of use specied in the contract documents and oper-
ating instructions.
▶Use the device only in conjunction with third-party devices and
components recommended and authorized by Bürkert.
▶Correct transportation, storage and installation as well as care-
ful operation and maintenance are essential for reliable and
fault-free operation.
▶Use the device for its intended purpose only.
2.1 Warranty
The warranty is only valid if the device is used as intended in
accordance with the specied application conditions.
2.2 Information on the Internet
The operating instructions for Type 0262 and 0263 can be found on
the Internet at: www.burkert.com
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3 BASIC SAFETY INSTRUCTIONS
These safety instructions do not consider any contingencies or inci-
dents which occur during installation, operation and maintenance.
The operator is responsible for observing the location-specic safety
regulations, also with reference to the personnel.
Risk of injury due to high pressure.
▶Before working on the system or device, switch o the pressure
and vent or drain lines.
Risk of injury from electric shock.
▶Before working on the system or device, switch o the power
supply and secure to prevent reactivation.
▶Observe the applicable accident prevention and safety regula-
tions for electrical equipment.
Risk of burns during continuous operation due to hot device
surface.
▶Keep device away from highly ammable substances and
media and do not touch with bare hands.
General hazardous situations.
To prevent injuries:
▶Operate the device only in perfect state and in consideration of
the operating instructions.
▶Do not make any changes to the device and do not subject it to
mechanical stress.
▶Secure device or system to prevent unintentional activation.
▶Only trained technicians may perform installation and mainte-
nance work.
▶Install the device according to the regulations applicable in the
country.
▶After an interruption in the power supply, ensure that the pro-
cess is restarted in a controlled manner.
▶Observe the general rules of technology.
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5
4 PRODUCT DESCRIPTION
4.1 General description
The externally controlled valve Type 0262 and 0263 is pneumatically
actuated.
It uses neutral gases or air (control media) to control the ow rate of
media, e.g. water, alcohol, oil, fuel, hydraulic uid, saline solution,
lye, organic solvent and steam.
4.2 Properties
•Glandless, double spindle seal,
•Actuator housing made of acid and lye-resistant plastic,
•High ow values through the stream-lined valve body,
•Type 0263 has a hermetically sealing diaphragm between the
valve body and actuator.
4.3 Device versions
A variant for steam application with PTFE seal is available for Type
0262.
5 STRUCTURE AND FUNCTION
5.1 Structure
The valve consists of a membrane actuator and a 2-way valve
body.
Control diaphragm
Spring plate
Lip seal
O-ring
Seal
Body
Fig. 1: Structure of Type 0262
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In Type 0263 the actuator is hermetically sealed from the medium
by a diaphragm.
Control diaphragm
Spring plate
Lip seal
Diaphragm
Body
Fig. 2: Structure of Type 0263
5.2 Function
Spring force (CFA) or pneumatic control pressure (CFB and CFI)
generates the closing force on the seat seal or diaphragm. The
force is transferred via a spindle which is connected to the control
diaphragm.
5.2.1 Control function
Control function (CF)
CFA
P
A
Closed by spring force in rest
position
CFB
P
A
Opened by spring force in rest
position
CFI
P
A
Actuating function via reciprocal
pressurization
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5.2.2 Incoming ow under seat
The valve is closed against the medium ow by spring force
(control function A, CFA) or by control pressure (control function B,
CFB). As the medium pressure is under the seat seal, this pressure
contributes to opening of the valve.
note!
Seat seal or diaphragm subject to wear.
When the incoming ow is over the seat, powerful water
hammers may occur, especially in the case of liquid media.
▶Do not use device for incoming ow over the seat.
▶Observe arrow for direction of ow on the valve body.
6 TECHNICAL DATA
6.1 Conformity
The device conforms to the EU directives as per the EU Declaration
of Conformity (if applicable).
6.2 Standards
The applied standards, which are used to demonstrate conformity
with the directives, are listed in the EU type examination certicate
and/or the EU Declaration of Conformity (if applicable).
6.3 Type label
Type
Control function
Orice Seal material
Body material
Order number
Control pressure
Connection type, operating
pressure
0262 A 25,0 FKM MS
Made in Germany
0028410
W12MN
Pilot 3-6 bar
G1 P
N 0 -1 bar
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6.4 Operating conditions
6.4.1 Temperature ranges
Type Seal material Medium tem-
perature [°C]
Ambient tem-
perature [°C]
0262 NBR -10...+90 -10...+90
FKM -10...+100
EPDM -10...+100
PTFE/EPDM -10...+140
PTFE/FKM -10...+140
0263 NBR -10...+90 -10...+90
FKM -10...+100
EPDM -10...+100
If a pilot valve is used, the maximum ambient temperature is
+55 °C.
Temperature of the control medium max. +90 °C
6.4.2 Pressure ranges
Type Orice Medium pressure for circuit
function [bar]
Max.
control
pressure
[bar]
A normal
spring
A rein-
forced
spring
B
normal
spring
0262 10 0...5 0...10 0...10 6
12 0...3.5 0...6 0...10 6
20 0...1.5 0...1.5 6
25 0...1 0...1 6
0263 10 0...2.5 0...5 0...10 6
12 0...2 0...4.5 0...10 6
Observe minimum control pressure according to the speci-
cations on the type label.
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6.4.3 Permitted media
Seal material Permitted media
NBR Neutral media, e.g. compressed air, town
gas, water, hydraulic oil
FKM Per solutions, oxygen, hot air
EPDM Oil and grease-free media, e.g. hot water,
alkaline washing and bleaching lyes
PTFE/EPDM Oil and grease-free media, e.g. hot water
and steam
PTFE/FKM Hot oil, hydrocarbons, aromatic compounds
and steam
Control medium neutral gases and liquids, in particular air,
water, hydraulic uids up to max. +90 °C
7 ASSEMBLY
Danger!
Risk of injury from high pressure and discharge of medium.
▶Before working on the device or system, switch o the pressure.
Vent or drain lines.
Risk of injury from electric shock.
▶Before working on the device or system, switch o the power
supply. Secure against reactivation.
▶Observe applicable accident prevention and safety regulations
for electrical equipment.
Warning!
Risk of injury due to incorrect assembly.
▶Assembly may be carried out only by trained technicians and
with the appropriate tools.
▶Secure system against unintentional activation.
▶Following assembly, ensure a controlled restart.
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7.1 Before installation
Installation position: optional, preferably with actuator face up.
→Remove contaminants from pipelines.
→Ensure that the pipelines are aligned.
→Observe ow direction.
7.2 Installation
→Connect valve body to pipeline.
Ensure that the valve body is installed torsionally rigid.
Warning!
Danger if incorrect lubricants used.
Unsuitable lubricant may contaminate the medium. In oxygen
applications there is a risk of an explosion.
▶Only use approved lubricants for specic applications, such as
oxygen or analytical applications.
7.3 Pneumatic connection
Warning!
Risk of injury due to unsuitable hoses.
▶Use only hoses which can withstand the pressure and tempera-
ture of the medium.
▶Observe technical data of the hose manufacturer.
For control function I: Danger due to the control pressure failing.
If the control pressure fails, the valve remains in an undened position.
▶For a controlled restart, pressurize the device with control pres-
sure and then connect the medium.
7.3.1 Connection of the control medium
Control function A:
→Connect control medium to lower connection of the actuator.
Control function B:
→Connect control medium to upper connection of the actuator.
Control function I:
→Connect control medium to upper and lower connections of the
actuator. Pressure on the lower connection opens the valve.
Pressure on the upper connection closes the valve.
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Dieses Handbuch passt für folgende Modelle
1
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