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.
Type 2012 Contents 8 INSTALLATION............................................................................................. 15 8.1 Safety instructions....................................................................15 8.2 Before installation.....................................................................15 8.3 Installation..................................................................................16 8.4 Pneumatic connection.............................................................18 8.
Type 2012 Operating Instructions 1 OPERATING 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. Warns of a possible danger! ▶▶ Failure to observe this warning may result in a moderate or minor injury.
Type 2012 Authorized Use 2 AUTHORIZED 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.
Type 2012 General Information Risk of burns. 4 GENERAL INFORMATION The surface of the device may become hot during long-term operation. ▶▶ Do not touch the device with bare hands. 4.1 Contact 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 General hazardous situations. To prevent injury, ensure: ▶▶ That the system cannot be activated unintentionally.
Type 2012 Product Description 5 PRODUCT DESCRIPTION 6 STRUCTURE AND FUNCTION 5.1 General description 6.1 Structure 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.
Type 2012 Structure and Function 6.2 Function 6.2.2 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. 6.2.1 Control functions (CF) WARNING! For control function I – Danger if pilot pressure fails. For control function I control and resetting occur pneumatically.
Type 2012 Technical Data Flow direction 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 pilot pressure. WARNING! Risk of injury from water hammer. A water hammer could crack the lines and device.
Type 2012 Technical Data 7.4 Operating conditions 7.4.1 Temperature ranges Actuator Actuator size material [mm] 7.4.2 Actuator material Temperature ranges Medium (for PTFE seal) Environment 1) 40 - 63 PA –10 ... see “Fig. 5” –10 ... see “Fig. 5” 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, briefly up to max. +140 °C Tab. 1: Temperature ranges 1) Pressure ranges Tab. 2: ∅ 50 40 Fig.
Type 2012 Technical Data Required minimum pilot pressure depending on medium pressure. Medium pressure [bar] The following graphs illustrate the required minimum pilot pressure depending on the medium pressure for control functions A, B and I. Medium pressure [bar] Control function A, flow direction above seat Pilot pressure [bar] Pilot pressure [bar] Fig. 6: Pressure graph, actuator ø 50 mm, control function A, flow direction above seat Medium pressure [bar] Fig.
Type 2012 Medium pressure [bar] Medium pressure [bar] Technical Data Pilot pressure [bar] Pilot pressure [bar] Fig. 9: Pressure graph, actuator ø 80 mm, control function A, flow direction above seat Medium pressure [bar] * Pilot pressure [bar] Fig. 10: Pressure graph, actuator ø 100 mm, control function A, flow direction above seat 12 english Fig. 11: Pressure graph, actuator ø 125 mm, control function A, flow direction above seat * Medium pressure max. 15 bar acc.
Type 2012 Technical Data Medium pressure [bar] Medium pressure [bar] Control functions B and I, flow direction below seat Pilot pressure [bar] Medium pressure [bar] Medium pressure [bar] Fig. 12: Pressure graph, actuator ø 40 mm, control functions B and I, flow direction below seat Pilot pressure [bar] Fig. 14: Pressure graph, actuator ø 63 mm, control functions B and I, flow direction below seat Pilot pressure [bar] Fig.
Type 2012 Technical Data 7.4.3 Medium pressure [bar] * Control medium neutral gases, air Flow medium water, alcohol, fuel, hydraulic liquids, saline solutions, lye, organic solvents 7.5 Control functions Control function A Normally closed by spring action Control function B Normally open by spring action Pilot pressure [bar] Fig.
Type 2012 Installation 8 INSTALLATION 8.1 Safety instructions DANGER! Risk of injury from high pressure. ▶▶ Before loosening the lines and valves, turn off the pressure and vent the lines. 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.
Type 2012 Installation 8.3 Installation 8.3.2 Install actuator (welded body) WARNING! Risk of injury from improper assembly. 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. 4: Tightening torques of valve body / nipples”). Seal Fig. 18: Seal →→Check the seal and if required, replace it.
Type 2012 Installation →→Screw actuator into the valve body. →→Counter on the flats of the nipple with a suitable open-end wrench. →→Place suitable open-end wrench on the hexagon of the actuator. Tightening torques of valve body / nipples WARNING! Nominal diameter Tightening torque (Nm) 15 45 ± 3 Risk of injury from discharge of medium and pressure. 20 50 ± 3 25 60 ± 3 32 65 ± 3 If the direction of rotation is wrong, the body interface may become detached.
Type 2012 Installation 8.4 Pneumatic connection DANGER! Control function B →→Connect the control medium to the upper control air connection of the actuator. Danger – high pressure in the equipment. ▶▶ Before loosening the lines and valves, turn off the pressure and vent the lines. Control function I →→Connect the control medium to the lower and upper control air connection of the actuator.
Type 2012 Maintenance, Cleaning 9 MAINTENANCE, CLEANING 9.1 Safety instructions DANGER! Danger – high pressure in the equipment. ▶▶ Before loosening the lines and valves, turn off the pressure and 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! WARNING! Risk of injury from improper maintenance.
Type 2012 Maintenance, Cleaning →→Control function A: pressurize the lower control air connection with compressed air (6 bar): valve opens. →→Using a suitable open-end wrench, place the wrench flat on the tube. Release bore →→Unscrew the actuator from the valve body. Replacing valve seat →→Unscrew old valve seat using the installation tool and open-end wrench. Fig. 20: Release bore 9.2.1 →→Clean thread and sealing surface in the body using compressed air.
Type 2012 Malfunctions →→Attach new valve seat to the installation tool. →→Grease thread with a lubricant (e.g. Klüber paste UH1 96-402). →→Place attached valve seat on the body thread and screw on by hand. →→Using a torque wrench, tighten to the specified tightening torque (see “Tab. 5”).
Type 2012 Replacement parts 11 REPLACEMENT PARTS 11.2 Overview of spare parts CAUTION! Risk of injury and/or damage by the use of incorrect parts. Incorrect accessories and unsuitable replacement parts may cause injuries and damage the device and the surrounding area. ▶▶ Use only original accessories and original replacement parts from Bürkert. 11.
Type 2012 Transport, Storage, Disposal 12 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 permitted storage temperature. Incorrect storage may damage the device. • Store the device in a dry and dust-free location! • Storage temperature -20 – +65 °C.
Type 2012 24 english
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