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Summary of Contents for Burkert 8840
- Page 1 Type 8840 Modular process valve cluster, DN20 and DN25 Modularer Prozessventilknoten, DN20 und DN25 Nœud de vanne de process modulaire, DN20 et DN25 Operating Instructions Bedienungsanleitung Manuel d‘utilisation...
- Page 2 We reserve the right to make technical changes without notice. Technische Änderungen vorbehalten. Sous réserve de modifications techniques. © Bürkert Werke GmbH & Co. KG, 2018 Operating Instructions 1806/00_EU-ML_00810703 / Original DE...
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Page 3: Table Of Contents
Type 8840 Table of contents 7.3 Devices with weld ends connection ......11 The operaTing insTrucTions ........4 7.4 Rotating the actuator ..........13 1.1 Definition of terms ............4 7.5 Connect the device pneumatically ......13 Symbols ............... 4 Removal ..............14 inTended use ..............5 mainTenance, TrouBleshooTing ......15 Basic safeTy insTrucTions .......... -
Page 4: The Operating Instructions
Definition of terms Warns of a possible danger. Term in these instructions representative for ▶ Failure to observe the warning may result in a moderate or minor injury. Valve cluster, modular process valve cluster Type 8840 device note Valve body valve body block Warns of damage to property. Ex atmosphere potentially explosive atmosphere... -
Page 5: Intended Use
Intended use inTended use Basic safeTy insTrucTions These safety instructions do not consider any contingencies or The modular process valve cluster Type 8840 is designed for incidents which occur during assembly, operation and maintenance. controlling the flow rate of liquid and gaseous media, especially The operator is responsible for observing the location-specific safety distributing and collecting or mixing and supplying media. -
Page 6: General Information
Type 8840 General information general informaTion ▶ Do not transport, install or remove heavy devices without the aid of a second person and using suitable auxiliary equipment. Contact addresses ▶ Do not make any changes on the device and do not subject germany it to mechanical stress. ▶ Secure the system from unintentional actuation. Bürkert Fluid Control Systems Sales Center ▶ Only trained technicians may perform installation and main- Christian-Bürkert-Straße 13-17 tenance work. D-74653 Ingelfingen ▶ Install the device in accordance with the regulations in force Tel. + 49 (0) 7940 - 10-91 111 in the country. Fax + 49 (0) 7940 - 10-91 448 ▶ After an interruption in the power supply, ensure that the pro- E-mail: info@burkert.com cess is restarted in a defined or controlled manner. ▶ Observe the general rules of technology. international ▶ To attach the valve cluster, use only the factory-provided Contact addresses are found on the final pages of the printed fastening threads. -
Page 7: Product Description
Type 8840 Product description producT descripTion Versions Depending on the requirement and preferred type of automation, Structure and description different actuators (ELEMENT, CLASSIC, INOX) can be selected. The following orifices are available: The valve cluster is suitable for controlling liquid and gaseous media and can be used to distribute, collect, mix or supply • DN10 (screwed down and sealed with a graphite seal), media. • DN20 and DN25 (welded). The valve cluster, based on a modular valve body, allows different configurations. The individual parts are joined hermetically tight The orifice 10 is described in separate operating and in a very compact way. -
Page 8: Technical Data
Orifice mixed Control function Seal material Type Function S=Collector 8840 A 20,0 PTFE S Supplying: Medium pressure G 3/4 Pmed 16 bar Pilot pressure Pilot 5,2 - 10 bar Different media, e. g. various cleaning agents, 00283928 W1X LU... -
Page 9: Operating Conditions
Type 8840 Technical data Operating conditions Seal material Seat seal: PTFE Seal between actuator and body: operating conditions graphite Permitted ambient CLASSIC ELEMENT temperature -10...+60 °C 0...+60 °C Pneumatic data (PA-actuator) +5...+140 °C pneumatic data (PPS-actuator) Control media Neutral gases, air Permitted medium -10...+180 °C Max. pilot pressure 10 bar... -
Page 10: Pressure Range
Type 8840 Installation Pressure range insTallaTion 6.7.1 Pressure range for actuator CLASSIC Danger risk of injury from high pressure and medium leakage. Orifice actuator minimum pilot maximum operating ▶ Before working on the system or device, switch off the pressure [mm] size pressure pressure up to 180 °c and vent or drain lines. -
Page 11: Preparatory Work
Type 8840 Installation Preparatory work Devices with weld ends connection The installation position is optional. Preferably with actuator face note Damage to the actuator during welding of the valve body into → Observe flow direction. the pipeline. → Observe type of incoming flow. ▶ Remove the actuator before welding into the pipeline. → Remove contaminants from pipelines. 7.3.1 Remove the actuator → Ensure that the pipelines are aligned. → Clamp the valve body in a holding device. - Page 12 Type 8840 Installation 7.3.2 Install the actuator note damage to the seat seal or the seat contour. ▶ When installing the actuator, ensure that the valve is open. Nipple → For actuators CLASSIC and control function A: pressurize lower pilot air port with compressed air (5 bar): valve opens. Seal → For actuator ELEMENT and control function A: pressurize the pilot air port 1 with compressed air (5 bar): valve opens. → Counter on the flats of the nipple with a suitable open-end Fig. 3: Install the actuator wrench. → Screw actuator into the valve body.
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Page 13: Rotating The Actuator
Type 8840 Installation Rotating the actuator Connect the device pneumatically Danger The position of the connections can be aligned steplessly by rotating the actuator through 360°. risk of injury from unsuitable connection hoses. ▶ Use only hoses which are authorised for the indicated pressure note and temperature range. damage to the seat seal or the seat contour. ▶ Observe the data sheet specifications from the hose ▶ When rotating the actuator, ensure that the valve is open. manufacturers. -
Page 14: Removal
Type 8840 Installation Removal Connection of the control medium for devices with actuator CLASSIC: Danger → Control function A: Connect the control medium to the lower pilot air port. risk of injury from high pressure and medium leakage. ▶ Before working on the system or device, switch off the pressure → Control function B: and vent or drain lines. Connect the control medium to the upper pilot port. Connection of the control medium for devices with actuator → Loosen the pneumatic connection. ELEMENT: → Remove the actuator from valve body. → Control function A and B: Connect the control medium to the pilot air port 1. If used in an aggressive environment, we recommend conveying all free pneumatic connections into a neutral atmosphere with the aid of a pneumatic hose. -
Page 15: Maintenance, Troubleshooting
Type 8840 Maintenance, troubleshooting mainTenance, 8.1.2 Visual inspection TrouBleshooTing Perform regular visual inspections according to the application conditions: Warning → Check media connections for leaks. risk of injury from improper maintenance. → Check release bore for leaks. ▶ Maintenance may only be carried out by trained specialist personnel using suitable tools. Cleaning ▶ Secure system from unintentional activation. Commercially available cleaning agents can be used to clean the ▶... -
Page 16: Malfunction
Type 8840 Maintenance, troubleshooting Malfunction malfunction reason remedial action Valve is not Dirt between seal Installing dirt trap malfunction reason remedial action sealed and valve seat Actuator does Pilot air port CFA: Connect the pilot Seat seal worn Installing new swivel not switch interchanged air port... -
Page 17: Replacement Parts
Type 8840 Replacement parts replacemenT parTs 9.1.2 Seal set for PPS-actuator Caution actuator Orifice order number size [mm] [mm] (VA-body) risk of injury and/or damage by the use of incorrect parts. 233 582 Incorrect accessories and unsuitable replacement parts may... -
Page 18: Replacement Parts For Actuator Element
Type 8840 Transport, storage, disposal Replacement parts for actuator TransporT, sTorage, elemenT disposal The following replacement parts are available for the actuator Caution ELEMENT: • Seal set for packing gland risk of injury due heavy devices. consists of the individual parts of the packing gland, seal and During transport or during assembly, a heavy device may fall lubricant and cause injury. • Valve set ▶ Do not transport, install or remove heavy devices without the aid of a second person and using suitable auxiliary consists of swivel plate, pin and seal equipment. 9.2.1 Seal set ▶... - Page 19 www.burkert.com...
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