Bosch Rexroth DBET Operating Instructions Manual Download Page 1

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Operating instructions
RE29162-XE-B/10.20

Replaces: 07.19
Document no.: RA78491199_AB
German

Proportional pressure relief

valve direct operated

(Area of application according to the explosion protection
Directive 2014/34/EU:

II 2G; II 2D

)

Type DBET.../...XE

(IECEx Konformitätsbescheinigung

des Ventilmagneten)

(IECEx certificate of conformity of

the valve solenoid)

Summary of Contents for Rexroth DBET

Page 1: ...91199_AB German Proportional pressure relief valve direct operated Area of application according to the explosion protection Directive 2014 34 EU II 2G II 2D Type DBET XE IECEx Konformitätsbescheinigung des Ventilmagneten IECEx certificate of conformity of the valve solenoid ...

Page 2: ...αυτές οι προϋποθέσεις απευθυνθείτε στους κατά τόπους αντιπροσώπους της Bosch Rexroth ή σε κάποιο εξουσιοδοτημένο σέρβις Για τα σχετικά στοιχεία επισκεφτείτε την ιστοσελίδα www boschrexroth com ES La puesta en marcha de este producto únicamente podrá realizarse cuando disponga de las instrucciones de servicio en una lengua oficial de la UE comprensible para usted y haya entendido su contenido En ca...

Page 3: ...reendido seu conteúdo Se não for esse o caso entre em contato com a pessoa de contato da Bosch Rexroth ou com o centro de serviço responsável Você também pode encontrá las em www boschrexroth com RO Aveţi voie să puneţi în funcţiune acest produs doar dacă aveţi acest manual de utilizare într o limbă oficială a UE pe care o înţelegeţi şi după ce aţi înţeles conţinutul Dacă aceste condiţii nu sunt î...

Page 4: ...he user from the obligation of own judgment and verification Our products are subject to a natural process of wear and aging All rights with Bosch Rexroth AG also in case of applications for industrial property protection It may not be reproduced or given to third parties without consent of Bosch Rexroth AG The cover shows an example configuration The product supplied may therefore differ from the...

Page 5: ... Scope of delivery 18 5 Product information 18 5 1 Product identification 19 6 Transport and storage 22 6 1 Transporting the valve 22 6 2 Storing the hydraulic valve 22 7 Assembly 24 7 1 Unpacking 24 7 2 Changes to the surface protection of the valve 24 7 3 Installation conditions 24 7 4 Prior to assembly 25 7 5 Required tools 25 7 6 Required accessories 26 7 7 Assembling the valve 26 8 Commission...

Page 6: ...T XE RE29162 XE B 10 20 13 Extension and modification 41 14 Troubleshooting 41 14 1 How to proceed for troubleshooting 41 15 Technical data 42 16 Appendix 43 16 1 List of addresses 43 17 Declaration of conformity 44 18 Index 45 ...

Page 7: ...be commissioned until you have been provided with the documentation marked with the book symbol and you have understood and observed it Table 1 Required and amending documentation Title Document number Document type Proportional pressure relief valve direct operated 29162 XE Data sheet General product information on hydraulic products 07008 Data sheet Subplates 45100 Data sheet Valve amplifier for...

Page 8: ...ger Consequences Describes the consequences in case of non compliance Precaution Specifies how the danger can be prevented Table 2 Risk classes according to ANSI Z535 6 2006 Warning sign signal word Meaning DANGER Indicates a dangerous situation which will cause death or severe injury if not avoided WARNING Indicates a dangerous situation which may cause death or severe injury if not avoided CAUTI...

Page 9: ...f electric operating equipment A B Hydraulic connections actuators T Hydraulic connection tank P Hydraulic connection pump Y Hydraulic port external pilot oil return ANSI American National Standards Institute 2 Safety instructions 2 1 General information on this chapter The product has been manufactured according to the generally accepted codes of practice However there is still the danger of pers...

Page 10: ...oth AG in these operating instructions please contact Bosch Rexroth AG beforehand Without the written approval by Bosch Rexroth AG the valve must not be used with other connection application and performance data than those defined in these operating instructions and or Data sheet 29162 XE The valve may only be operated with the hydraulic fluids stated in the technical data Information on the use ...

Page 11: ...t knowledge refers to the following Reading and completely understanding hydraulic schemes In particular completely understanding the correlations regarding the safety equipment and Knowledge of the function and set up of hydraulic components Personnel shall be qualified as follows to the extent necessary to fulfill their tasks Understanding of the general principles of explosion protection protec...

Page 12: ...zard to persons due to unsuitable spare parts Comply with the technical data and environmental conditions specified in the product documentation The installation or use of inappropriate products in safety relevant applications could result in unintended operating states when being used which in turn could cause personal injuries and or damage to property Therefore only use a product for safety rel...

Page 13: ...to functional failures like overheating of the valve solenoid Explosion protection is therefore no longer ensured Only use the valve within the intended environmental and hydraulic fluid temperature range Valve solenoid has hot surface Risk of burning Provide a suitable touch guard During operation only touch the valve solenoid with heat protective gloves Allow the valve solenoid to cool down to r...

Page 14: ...les of the valve In the worst case this may result in unexpected system movements and thus constitute a risk of injury for persons Ensure an adequate hydraulic fluid cleanliness according to the cleanliness classes of the valve over the entire operating range Leakage in case of incorrect working temperatures The use of the valve outside the approved temperature ranges may lead to permanent leakage...

Page 15: ...To ensure proper functioning care must be taken that the pressure chamber of the valve solenoid is always filled with hydraulic fluid Switching off the valve solenoid results in a voltage peak due to the inductive effect The valve solenoid already contains an interference protection circuit dampening this voltage peak However additional external switching measures have to be taken if required to a...

Page 16: ...he intended use as defined in these operating instructions the valve is only stored operated and maintained according to the technical data operating and environmental conditions indicated in Data sheet 29162 XE in particular that the limit values indicated in Data sheet 29162 XE are not exceeded the applicable provisions rules and directives on explosion protection are being complied with the ope...

Page 17: ... particles in the valve Penetrating dirt and foreign particles in the valve lead to wear and malfunctions The safe function of the valve can no longer be ensured During installation ensure utmost cleanliness in order to prevent foreign particles such as welding beads or metal chips from getting into the hydraulic lines Before commissioning ensure that all hydraulic connections are tight and that a...

Page 18: ... for completeness Check the scope of delivery for possible transport damage see chapter 6 Transport and storage In case of complaints please contact Bosch Rexroth AG see chapter 16 1 List of addresses Accessories such as valve subplates and valve mounting screws are not included in the scope of delivery and must be ordered separately See chapter 7 6 Required accessories 5 Product information For i...

Page 19: ...facturer s factory number 6 Date of manufacture year and week 7 Maximum operating pressure 8 Ambient temperature range 9 Hydraulic symbol according to ISO 1219 10 Designation of origin 11 Name and address of the manufacturer 12 Customer s or production order number 13 Customer material number or additional information 14 CE mark 15 Explosion protection mark 16 Mark according to the ATEX Directive ...

Page 20: ...e of production 8 Mark according to the ATEX Directive 2014 34 EU and mark for the type of protection according to DIN EN 60079 9 Mark according to the ATEX Directive 2014 34 EU and mark for the type of protection and maximum surface temperature according to DIN EN 60079 10 EU type examination certificate number 11 IECEx Certificate of Conformity 12 Electrical characteristic values Resistance rate...

Page 21: ...l II 1G Potentially explosive atmospheres in which explosive gases mists or vapors device group II occur permanently or for a long time or frequently Corresponds to zone 0 according to Directive 1999 92 EC Very high safety level 0 1 2 II 2G Potentially explosive atmospheres where explosive gases mists or vapors device group II are occasionally present Corresponds to zone 1 according to Directive 1...

Page 22: ...6 1 List of addresses Report any transport damage to your responsible sales contact person within one week The addresses of the sales subsidiaries can be found on the Internet at http www boschrexroth com addresses 6 2 Storing the hydraulic valve Valves are delivered in a perfect state For transportation and storage of the product always observe the environmental conditions specified in Data sheet...

Page 23: ... your competent Rexroth service In case of questions regarding spare parts please contact the Bosch Rexroth service responsible for your valve see chapter 10 6 Spare parts If a dismounted valve is to be stored it has to be preserved for protection against corrosion for the duration of storage Bosch Rexroth recommends you proceed as follows 1 Clean the valve refer to chapter 10 1 Cleaning and care ...

Page 24: ...ional regulations of your country 7 2 Changes to the surface protection of the valve WARNING Explosion hazard due to modifications to the valve In the event of changes to the surface protection of the valve the following points must be observed The valve solenoid must not be painted or otherwise coated with non conductive substances This leads to a loss of the explosion protection The valve housin...

Page 25: ... which is not approved for the area of application may cause an explosion Check whether all the explosion protection marks on the name plate of the valve comply with the information in these operating instructions Please check if you have the right valve type by means of the type designation on the name plate of the valve Make sure that the zone and the temperature class correspond to the area of ...

Page 26: ...come loose during subsequent operation and be ejected due to the pressure This may cause serious injuries Only pressurize your system after all plug screws and lines have been completely and properly mounted according to the specification Faulty mounting Mounting of the valve with valve mounting screws of reduced stability insufficient mounting or fastening at blocks and plates with insufficient s...

Page 27: ...s ensure absolute cleanliness Install the valve in a clean condition Make sure that all connections hydraulic lines and attachment parts are clean Ensure that no cleaning agents are able to penetrate the hydraulic system Only use seal kits as listed in chapter 10 6 Spare parts To ensure proper functioning care must be taken to ensure that the pressure chamber of the solenoid is always filled with ...

Page 28: ...ight be necessary to use a lower tightening torque in order to exclude any damage 7 7 2 Hydraulic connection of the valve CAUTION Damage of the valve During operation hydraulic lines and hoses installed under mechanical stress create additional mechanical forces which reduce the life cycle of the valve and the complete machine or system Assemble lines and hoses without stress 1 Depressurize the re...

Page 29: ...ed movements at the machine may be caused Provide for correct grounding and provide for proper equipotential bonding The base plate or subplate on which the valve is fitted must be electrically conductive and included in the equipotential bonding according to EN 60079 14 and IEC 60364 4 41 Explosion hazard due to improper installation No precautions are taken for safe connection of the shielding o...

Page 30: ... are undamaged Only use finely stranded conductors if they have pressed on wire end ferrules Use only lines which satisfy the requirements for the terminal areas of the connection terminals and the cable and line entries see Data sheet 29162 XE During the assembly ensure leak tightness between cable and line entry and terminal box Route the connection line in a strain relieved form The first mount...

Page 31: ...wing Loosen the two hexagon socket head cap screws 3 of the clamping brackets 4 at the cable and line entry Disassemble the clamping screw 1 the rubber seal 2 and the guide socket 5 from the screw in section 6 Slide the clamping screw 1 and the rubber seal 2 with the guide socket 5 on the connection line Guide them through the screw in section 6 Assemble the rubber seal 2 the guide socket 5 and th...

Page 32: ...fix the line ends Tightening torques for the clamping screws Table 8 Tightening torques Connection terminal 0 4 0 5 Nm Connection for protective grounding conductor 1 0 1 2 Nm Connection for potential equalization conductor 3 5 4 5 Nm 6 Assemble the cover with the sealing device underneath Tighten the mounting screws diagonally one after the other Tightening torque of the cover screws 1 1 5 Nm 7 C...

Page 33: ...s may be ejected and cause personal injury Before commissioning the hydraulic system ensure that the maximum admissible pressure of the valve in the system is not exceeded by any means Ensure that in your system the maximum admissible operating pressure is secured by means of a pressure limitation element Damage to persons and property Commissioning the valve requires basic hydraulic and electrica...

Page 34: ...t the hydraulic system Internal leakage can be valve specific but does not necessarily affect the functionality of the valve 9 Operation 9 1 General information WARNING Explosion hazard by the ignition of dust accumulations If the maximum dust layer thickness of 5 mm is exceeded there is an explosion hazard Make sure that the maximum dust layer thickness is not exceeded Regularly remove dust accum...

Page 35: ...ressive cleaning agents may damage the seals and the surface of the valve and let them age faster Never use solvents or aggressive cleaning agents Damage to the hydraulic system and seals A high pressure washer s water pressure could damage the hydraulic system and the seals of the valve The water displaces the hydraulic fluid from the hydraulic system and seals Do not use a high pressure washer f...

Page 36: ...ut maintenance For order details for seal kits please refer to chapter 10 6 Spare parts In order to ensure a long life cycle and functionality include the following activities in your maintenance schedule for the overall system 1 De energize and depressurize the connection line 2 Remove coarse dirt from the exterior CAUTION Damage to property and personal injury caused by electrostatic charging In...

Page 37: ...ors Bosch Rexroth therefore recommends that you keep the valve and or the system permanently clean 10 3 2 Checking for noise development Check the valve for noise development Based on noise development or the increase in noise development a possible failure of one or several components can be recognized in time and consequential damage can be avoided 10 3 3 Checking the mounting elements Check tha...

Page 38: ... Table 9 Replacement seal kit for the valve connection surface Spare part Material number FKM seal kit for the valve connection surface R961000838 Ensure the suitability of the sealing materials for the hydraulic fluid used See Data sheet 29162 XE Table 10 Spare part Seal kit for the terminal box Spare part Material number Seal kit for the terminal box upon request In case of questions about spare...

Page 39: ...m binding materials ready in order to collect or bind leaking hydraulic fluid 1 De energize and depressurize the relevant system part 2 Disconnect the electrical connections professionally 3 Prepare a container for collecting leaking hydraulic fluid 4 Only use suitable tools to loosen the valve mounting screws of the valve 5 Remove the valve mounting screws and remove the valve from the connection...

Page 40: ...en products are returned Valves must be drained before being returned The components should be delivered free to the following address Bosch Rexroth AG Service Industriehydraulik Industrial Hydraulics Service Bürgermeister Dr Nebel Straße 8 97816 Lohr am Main Germany 12 3 Packaging Upon request reusable systems can be used for regular deliveries The materials for disposable packaging are mostly ca...

Page 41: ...k systematically and purposefully even when under time pressure In the worst case random thoughtless disassembly and changing settings might result in the inability to identify the original cause of error First get an overview of the functions of the valve in conjunction with the overall system Try to find out whether the valve has worked properly in conjunction with the overall system before the ...

Page 42: ...does not react to control Remove valve and replace it with a new one Have the valve repaired Pressure change at identical control Check pressure at port T Contact problems at the connection terminal Check the mounting screws of the connection terminal and tighten them using a manual torque wrench Observe the instructions in chapter 7 Assembly External leakage Seal defective Seal at the connection ...

Page 43: ...m Main Germany Phone 49 0 9352 40 50 60 Email service boschrexroth de Bosch Rexroth AG Zum Eisengießer 1 97816 Lohr am Main Germany Phone 49 0 9352 40 30 20 Email my support boschrexroth de The addresses of our sales and service network and sales organizations can be found at www boschrexroth com addresses Contacts for service and spare parts Headquarters ...

Page 44: ...44 48 Declaration of conformity Bosch Rexroth AG DBET XE RE29162 XE B 10 20 17 Declaration of conformity ...

Page 45: ...fety instructions 12 I Improper use 10 Information 7 Inspection 36 Installation conditions 24 Intended use 10 L List of addresses 43 M Maintenance 35 Maintenance schedule 37 N Name plate 19 O Obligations of the machine end user 16 Operation 34 P Packaging 40 Product specific safety instructions 13 Protective equipment 15 Q Qualification 11 R Recycling 41 Repair 35 37 Required tools 25 S Safety ins...

Page 46: ...46 48 Declaration of conformity Bosch Rexroth AG DBET XE RE29162 XE B 10 20 ...

Page 47: ...Declaration of conformity 47 48 RE29162 XE B 10 20 DBET XE Bosch Rexroth AG ...

Page 48: ...Bosch Rexroth AG Zum Eisengießer 1 97816 Lohr a Main Germany Tel 49 0 9352 40 30 20 my support boschrexroth de www boschrexroth com Subject to change without notice Printed in Germany RE29162 XE B 10 20 ...

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