Bürkert Type 2012 Operating Instructions
Type 2012
Globe control valve, pneumatically operated
Actuator sizes 40 mm - 125 mm, Nominal diameter DN10 - 65
Kolbengesteuertes Geradsitzventil
Antriebsgrößen 40 mm - 125 mm, Nennweiten DN10 - 65
Vanne à siège droit commandée par piston
Tailles d'actionneur 40 mm - 125 mm, Diamètre nominal DN10 - 65
Operating Instructions
Bedienungsanleitung Manuel d‘utilisation
We reserve the right to make technical changes without notice. Technische Änderungen vorbehalten.
Sous réserve de modifications techniques.
© 2000 - 2017, Bürkert Werke GmbH & Co. KG
Operating Instructions 1709/21_EU-ML_00804072 / Original DE
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Type 2012 |
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Contents |
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1 |
OPERATING INSTRUCTIONS................................................................. |
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INSTALLATION............................................................................................ |
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1.1 |
Symbols....................................................................................... |
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8.1 |
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Safety instructions................................................................... |
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1.2 |
Definition of term........................................................................ |
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8.2 |
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Before installation.................................................................... |
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2 |
AUTHORIZED USE |
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8.3 |
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Installation.................................................................................. |
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8.4 |
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Pneumatic connection |
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BASIC SAFETY INSTRUCTIONS |
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8.5 |
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Removal...................................................................................... |
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GENERAL INFORMATION |
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MAINTENANCE, CLEANING................................................................. |
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9.1 |
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Safety instructions |
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4.1 |
Contact address |
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9.2 |
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Maintenance work |
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4.2 |
Warranty |
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9.3 |
Replacing the valve seat |
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4.3 |
Information on the Internet |
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5 |
PRODUCT DESCRIPTION |
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MALFUNCTIONS........................................................................................ |
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5.1 |
General description................................................................... |
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REPLACEMENT PARTS.......................................................................... |
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STRUCTURE AND FUNCTION |
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11.1 |
Replacement part sets............................................................ |
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11.2 Overview of spare parts |
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6.1 |
Structure |
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6.2 |
Function....................................................................................... |
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TRANSPORT, STORAGE, DISPOSAL.............................................. |
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TECHNICAL DATA......................................................................................... |
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7.1 |
Conformity................................................................................... |
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7.2 |
Standards.................................................................................... |
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7.3 |
Type label..................................................................................... |
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7.4 |
Operating conditions.............................................................. |
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7.5 |
Control functions..................................................................... |
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7.6 |
Mechanical data....................................................................... |
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english |
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Type 2012
Operating Instructions
1OPERATING INSTRUCTIONS
The operating instructions describes 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.
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.
1.1Symbols
CAUTION!
Warns of a possible danger!
Failure to observe this warning may result in a moderate or minor injury.
NOTE!
Warns of damage to property!
Failure to observe the warning may result in damage to the device or the equipment.
Indicates important additional information, tips and recommendations.
DANGER!
Warns of an immediate danger!
Failure to observe the warning may result in a fatal or serious injury.
Refers to information in these operating instructions or in other documentation.
Designates an instruction to prevent risks. →→Designates a procedure which you must carry out.
WARNING!
Warns of a potentially dangerous situation!
Failure to observe the warning may result in serious injuries or death.
1.2Definition of term
The term “device” used in these instructions always stands for the globe control valve Type 2012.
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4 |
english |
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Type 2012
Authorized Use
2AUTHORIZED USE
Non-authorized use of the globe control valve Type 2012 may be a hazard to people, nearby equipment and the environment.
The device is designed for the controlled flow of liquid and gaseous media.
In the potentially explosion-risk area the device may be used only according to the specification on the separate Ex type label. For use observe the additional information enclosed with the device together with safety instructions for the explosion-risk area.
Devices without a separate Ex type label may not be used in a potentially explosive area.
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. These are described in the chapter entitled “Technical Data”.
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 faultless operation.
Use the device only as intended.
3BASIC 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, whereby the operator is responsible for their compliance, by the installation personnel too.
Danger – high pressure.
Before dismounting the lines and valves, turn off the pressure and vent the lines.
Risk of electric shock.
Before reaching into the device, switch off the power supply and secure to prevent reactivation.
Observe applicable accident prevention and safety regulations for electrical equipment.
Risk of injury when opening the actuator.
The actuator contains a tensioned spring. If the actuator is opened, there is a risk of injury from the spring jumping out!
The actuator must not be opened.
Risk of injury from moving parts in the device.
Do not reach into openings.
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Type 2012
General Information
Risk of burns.
The surface of the device may become hot during long-term operation.
Do not touch the device with bare hands.
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.
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.
4GENERAL INFORMATION
4.1Contact address
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: info@de.buerkert.com
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
4.2Warranty
The warranty is only valid if the device is used as authorized in accordance with the specified application conditions.
4.3Information on the Internet
The operating instructions and data sheets for Type 2012 can be found on the Internet at: www.burkert.com
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Type 2012
Product Description
5PRODUCT DESCRIPTION
5.1General description
The 2/2-way globe control valve Type 2012 is suitable for liquid and gaseous media. It uses neutral gases or air (control media) to control the flow of water, alcohol, oil, fuel, hydraulic fluid, saline solution, lye, organic solvent and steam (flow media).
A particular feature of the globe control valves are screwed in seats which can be changed if required.
5.1.1Restrictions
WARNING!
Risk of injury from water hammer!
A water hammer could crack the lines and device. Due to the risk of water hammer, valves with a flow direction above seat must not be used for liquid media.
Consider the type of flow direction and the type of medium for operation of the device.
6STRUCTURE AND FUNCTION
6.1Structure
The globe control valve consists of a pneumatically actuated piston actuator and a 2-way globe control valve body.
The actuator is manufactured from PA or, for special operating conditions, from PPS. The self-adjusting packing gland ensures a high degree of tightness. The valve body, made of stainless steel, enables high flow values.
Transparent cap with |
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position indicator |
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Actuator cover |
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Pilot air ports |
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Actuator body |
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Interface actuator / |
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body with flats |
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Globe valve body |
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Port connection
Fig. 1: Globe control valve Type 2012, Structure and description
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english |
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Type 2012
Structure and Function
6.2Function
Depending on the version, the seat of the valve is closed with or against the medium flow.
Spring force (CFA) or pneumatic pilot 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.
6.2.1Control functions (CF)
WARNING!
For control function I – Danger if pilot 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 pressurise the device with pilot pressure, then switch on the medium.
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A |
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A |
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Normally closed by spring action |
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(CFA) |
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P |
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B |
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B |
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Normally open by spring action |
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(CFB) |
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P |
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A |
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I |
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Actuating function via reciprocal |
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(CFI) |
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pressurisation |
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P |
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6.2.2Flow direction below seat
Depending on the version, the valve is closed against the medium flow with spring force (control function A, CFA) or with pilot pressure (control function B or I, CFB or CFI).
As the medium pressure is under the swivel plate, this pressure contributes to the opening of the valve.
WARNING!
Medium may be discharged if minimum pilot pressure is too low or medium pressure too high.
If the minimum pilot pressure is too low for CFB and CFI or the permitted medium pressure is exceeded, leaks may occur.
Observe minimum pilot pressure.Do not exceed medium pressure.
See chapter entitled “7.4.2 Pressure ranges”.
CFA |
CFB / |
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CFI |
Fig. 2: Flow direction below seat (closing against medium)
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