Bosch Rexroth WE6/BVP1 Series User manual

Operating instructions
RE23178-VP1-B/06.16
Replaces: ---
English
Directional spool valves,
direct operated,
with solenoid actuation
Type WE6../.B..VP1...
Area of application according to explosion protection directive:
NEC500 and CEC appendix J: Class I, Division 1
NEC502 and CEC Section 18: Class II/III, Division 1

The data specified serves to describe the
product. If information on the use of the
product is given, it is only to be regarded as
application examples and recommendations.
Catalog information does not constitute
warranted properties. The information given
does not release the user from the obligation
of own judgment and verification. Our products
are subject to a natural process of wear and
aging.
© This document, as well as the data,
specifications and other information set forth in
it, are the exclusive property of Bosch Rexroth
AG. It may not be reproduced or given to third
parties without its consent.
The cover shows an example configuration. The
product supplied may therefore differ from the
figure shown.
The original operating instructions were
prepared in German.

RE23178-VP1-B/06.16, WE 6../.B..VP1..., Bosch Rexroth AG
3/48Contents
Contents
1 About this documentation 5
1.1 Validity of the documentation 5
1.2 Required and amending documentation 5
1.3 Representation of information 5
2 Safety instructions 7
2.1 General information on this chapter 7
2.2 Intended use 7
2.3 Improper use 8
2.4 Qualification of personnel 9
2.5 General safety instructions 10
2.6 Product-specific safety instructions 11
2.7 Notices on the valve use 13
2.8 Personal protective equipment 14
2.9 Obligations of the machine end-user 14
3 General information on damage to property and damage to product 15
4 Scope of delivery 16
5 Product information 16
5.1 Product identification 17
6 Transport and storage 20
6.1 Transporting the valve 20
6.2 Storing the hydraulic valve 21
7 Assembly 22
7.1 Unpacking 22
7.2 Changes to the surface protection of the valve 22
7.3 Installation conditions 22
7.4 Before mounting 23
7.5 Required tools 23
7.6 Required accessories 24
7.7 Mounting the valve 25
8 Commissioning 31
9 Operation 33
9.1 General information 33
9.2 Operating the manual override 34
10 Maintenance and repair 35
10.1 Cleaning and care 35
10.2 Inspection and maintenance 35
10.3 Maintenance schedule 37
10.4 Repair 37
10.5 Rectifying external leakages 37
10.6 Spare parts 38
11 Disassembly and removal 39
12 Disposal 40
12.1 Environmental protection 40
12.2 Return to Bosch Rexroth AG 40
12.3 Packaging 40
12.4 Materials used 40

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12.5 Recycling 41
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 Index 44

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1 About this documentation
1.1 Validity of the documentation
This documentation applies to the following products:
•WE6../.B..VP1...
This documentation is intended for fitters, operators, service engineers, system end-
users, machine and system manufacturers.
This documentation contains important information on the safe and proper
mounting, transport, commissioning, operation, use, maintenance, demounting and
simple troubleshooting of the product.
▶ Read this documentation thoroughly, especially Chapter 2 “Safety instructions“
and Chapter 3 “General notes on damage to property and damage to the
product“, before working with the valve.
1.2 Required and amending documentation
▶ The product must not 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
Directional spool valves, direct operated,
with solenoid actuation
23178-VP1 Data sheet
General product information on
hydraulic products
07008 Data sheet
Subplates 45100 Data sheet
1.3 Representation of information
Uniform safety instructions, symbols, terms and abbreviations are used to ensure
quick and safe working with the product using this documentation. For a better
understanding, they are explained in the following sections.
1.3.1 Safety instructions
This documentation contains safety notes in chapter 2.6 “Product-specific safety
instructions“ and chapter 3 “General notes on damage to material and the product“
as well as before a sequence of activities or instructions for action, which involve the
risk of personal injury or damage to equipment. The measures described for averting
the hazard have to be observed.

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Safety instructions are structured as follows:
SIGNAL WORD
Type and source of danger!
Consequences in case of non-compliance
▶ Hazard avoidance measures
▶ <Enumeration>
•Warning sign: draws attention to the danger
•Signal word: identifies the degree of danger
•Type and source of danger!: specifies the type and source of danger
•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.
CAUTION Indicates a dangerous situation which may cause minor or
moderate (personal) injury if not avoided.
NOTICE Damage to property: The product or the environment could
be damaged.
1.3.2 Symbols
The following symbols indicate notices which are not safety-relevant but increase the
comprehensibility of the documentation.
Table 3: Meaning of the symbols
Symbol Meaning
If this information is not observed, the product cannot be used and/or
operated optimally.
▶ Individual, independent action
1.
2.
3.
Numbered instruction:
The numbers indicate that the actions must be carried out one after the
other.
1.3.3 Abbreviations
The following abbreviations are used in this documentation:
Table 4: Abbreviations
Abbreviation Meaning
NEC National Electrical Code
EN European Standard
ISO International Organization for Standardization

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Abbreviation Meaning
IEC International Electrotechnical Commission
RE Rexroth document
IP Ingress protection rating
A, B Hydraulic ports (actuator)
T Hydraulic port (tank)
P Hydraulic port (pump)
ANSI American National Standards Institute
FM Factory Mutual Research
NPT American standard pipe thread, tapered
NEMA National Electrical Manufactures Association FM
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 personal injury and damage to property
if you do not observe this chapter and the safety instructions in this documentation.
▶ Read this documentation completely and thoroughly before working with the
product.
▶ Keep this documentation in a location where it is accessible to all users at all
times.
▶ Always include the required documentation when you pass the product on to
third parties.
2.2 Intended use
The product is a hydraulic component.
You may use the product as follows:
•as a direct operated directional spool valve with solenoid actuation for intended
use in explosive atmospheres.
The product is only intended for professional use and not for private use.
Operation according to the intended use also implies that you have read
and understood this documentation completely, especially chapter 2 “Safety
instructions“.
The valve is designed and constructed for the control of oil flows.
The electrical part (solenoid system) complies with NEC 500 and NEC 502 as well
as CEC appendix J and section 18. Under ”Information on explosion protection” in
“Data sheet 23178-VP1”, the area of application, hazardous substance group and
temperature class met by the electrical part, are specified. This information can also
be found in chapter 5.1.2 “Explosion protection marking” and on the nameplate of
the valve solenoid.

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The valve may only be operated in a technically perfect condition and used as
described in these operating instructions. The connection conditions, application
conditions and performance data defined in these operating instructions must not
be changed.
If you intend to use the valve with other connection, application or performance
data than those defined by Bosch Rexroth AG in these operating instructions, please
contact Bosch Rexroth AG beforehand. The valve must not be used with other
connection, application and performance data than those defined in these operating
instructions without the written approval by Bosch Rexroth AG.
2.3 Improper use
Any use deviating from the intended use is improper and thus not admissible.
The installation or use of inappropriate products in safety-relevant applications
could result in unintended operating states during use which in turn could cause
personal injuries and/or damage to property. Therefore, please only use a product
for safety-relevant applications if this use is expressly specified and permitted in
the documentation of the product. For example, in explosion-protected areas or in
safety-related control components (functional safety).
Improper use of the product includes:
•Faulty mounting
•Incorrect transport
•Lack of cleanliness during storage and mounting
•Faulty installation
•Use of inappropriate/non-admissible hydraulic fluids
•Non-compliance with the specified performance limits
Changes and/or modification at the valve are not admissible, see chapter 13
“Extension and modification”.
Bosch Rexroth AG does not assume any liability for damage caused by improper use.
The user assumes all risks involved with improper use.

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2.4 Qualification of personnel
The activities described in this documentation require basic knowledge of
mechanics, electrics, hydraulics, pneumatics as well as knowledge of the appropriate
technical terms. For transporting and handling the product, additional knowledge
of how to handle lifting gear and the necessary attachment devices is required. In
order to ensure safe use, these activities may only be carried out by an expert in the
respective field or an instructed person under the direction and supervision of an
expert.
Experts are those who are able to recognize potential dangers and apply the
appropriate safety measures due to their professional training, knowledge and
experience, as well as their understanding of the relevant conditions pertaining
to the work to be undertaken. An expert must observe the relevant specific
professional rules and have the necessary expert knowledge.
Expert knowledge means for example for hydraulic products:
•reading and completely understanding hydraulic schemes,
•in particular, completely understanding the correlations regarding the safety
equipment and
•having knowledge of the function and set-up of hydraulic components.
The personnel must have the following additional qualifications to the extent
required to fulfill their tasks:
•Understanding of general principles of explosion protection, types of protection
and device marking
•Understanding of those aspects of device design which influence the protection
concept;
•Understanding of the contents of certificates and of the relevant parts of this
standard;
•General understanding of the testing, maintenance and repair requirements of IEC
60079-17;
•Familiarity with the special methods which are to be applied during the selection
and installation of devices to which this standard refers;
•Understanding of the additional importance of work permit systems and safe
electrical separation regarding explosion protection.
Bosch Rexroth offers measures supporting training in specific fields. You can find
an overview of the training contents on the Internet at:
http://www.boschrexroth.de/didactic
Qualification of personnel
for the installation and
commissioning of valves in
explosive areas

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2.5 General safety instructions
•Observe the valid regulations on accident prevention and environmental protection.
•Observe the safety regulations and provisions of the country in which the product
is used/applied.
•Exclusively use Rexroth products in technically perfect condition.
•Observe all notices on the product.
•Persons mounting, operating, demounting or maintaining Rexroth products must
not be under the influence of alcohol, other drugs or medication influencing the
ability to react.
•Only use original Rexroth accessories and spare parts in order to exclude any
hazard 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 during use which in turn could cause
personal injuries and/or damage to property. Therefore, only use a product for
safety-relevant applications if this use is expressly specified and permitted in the
documentation of the product, e.g. in explosion protection zones or in safety-
related parts of control systems (functional safety).
•Do not commission the product until you can be sure that the end product (for
example a machine or system) where the Rexroth product is installed complies
with the country-specific provisions, safety regulations and standards of the
application.