Weh TVR2 Manual de usuario
WEH®- We Engineer Hightech
Type TVR2
Operating instructions ⋅Betriebsanleitung Date: 09/22
WEH®Check valve made of stainless steel
WEH®Rückschlagventil aus Edelstahl
Die deutsche Version ist das Original.
Hersteller: WEH GmbH Verbindungstechnik - im Nachfolgenden „WEH“ genannt.
The German version is the original.
Manufacturer: WEH GmbH Verbindungstechnik – hereinafter referred to as “WEH”.
LANGUAGES
TYPE TVR2 � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 4
WEH®Check valve made of stainless steel
TYP TVR2 � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 18
WEH®Rückschlagventil aus Edelstahl
AE
DE
The German version is the original.
Manufacturer: WEH GmbH Verbindungstechnik - hereafter referred to as 'WEH'.
CONTENTS
1. INTRODUCTION 6
1.1 For your guidance 6
1.2 General information 7
1.3 Warranty and liability 7
1.4 General safety instructions 8
1.5 Definition of qualified personnel 9
2. INTENDED USE 10
3. PRODUCT OVERVIEW / PRODUCT DESCRIPTION 11
4. TECHNICAL DATA 12
5. STORAGE 13
5.1 Safety instructions for proper storage 13
5.2 Storage 14
6. REQUIRED TOOLS 14
7. INSTALLATION 15
7.1 Safety instructions for installation 15
7.2 Installing the check valve 16
8. COMMISSIONING 17
9. MAINTENANCE 17
10. DISPOSAL 17
Type TVR2
WEH®Check valve made of stainless steel
MD-10385-L51-R2.1.0-03 Page 5
Operating instructions AE
1. INTRODUCTION
Dear Customer!
Thank you for deciding to use our products.
The WEH®TVR2 Check valve has been exclusively designed for reliably preventing
return flow in a gaseous or liquid media flow.
Observe and follow all instructions and warnings in these operating instructions�
Non-observance may result in personal injury and/or property damage�
1�1 For your guidance
The markings and symbols contained in these operating instructions have the
following meanings:
- Items are indicated by a dash
ÎCalls for action are indicated by an arrow
Figures
The illustrations and/or images used in these operating instructions are particularly provid-
ed for illustrative purposes only and may differ in some details from the actual product.
For binding information, please refer to your individual orders.
Abbreviations / Definitions
For explanation of abbreviations and definitions of terms see applicable Technical
Appendix of the corresponding catalog or www.weh.com
Definition of signal words
Caution: A section marked with 'Caution' warns you about hazards that could result in
a slight, usually reversible personal injury if you do not comply with this instruction.
Attention: Sections marked ‘Attention’ warn you of situations that could lead to
property damage and disruptions in operation if you do not comply with the instruction.
Note: Sections marked ‘Note’ indicate that malfunctions in operation may occur if you
do not comply with the instruction.
Please note: Sections marked with ‘Please note’ provide you with additional informa-
tion for smooth operation.
MD-10385-L51-R2.1.0-03
Page 6
Operating instructions
AE
1�2 General information
ÎFirst read these operating instructions to avoid misuse and resulting damage.
- In these operating instructions you will find all the necessary information and
instructions for the WEH®Product.
ÎThen check the contents of your delivery. Each delivery must contain:
- a delivery note
- an original WEH Test report (not applicable to spare parts)
- WEH operating instructions
ÎIf any documents are missing, please contact WEH or your responsible distributor.
1�3 Warranty and liability
- Our General Terms and Conditions apply.
ÎPlease read these operating instructions and safety instructions carefully and
follow the information contained therein.
- The information in these operating instructions reflects to the state of knowledge at
the time of printing. Failure to comply may void the warranty. Any side agreements
to these operating instructions require the written approval of the Head of the
Quality Department at WEH.
- Violation of these operating instructions result in the lapse of all warranty claims.
WEH will accept no liability for consequential damage, in particular damage due to
personal injury and/or other legal interests.
Caution: WEH®Products may only be repaired by WEH.
ÎContact WEH or the responsible distributor if the WEH®Product requires
maintenance. Special maintenance work that may be performed by the operator is
described in these operating instructions and is specially marked.
ÎOnly use original WEH®Spare parts. These are exactly suited to the WEH®Product
and subject to strict quality controls.
- You yourself are solely responsible for the proper performance of the replacement or
repair. WEH is not responsible for the performance or any damage and/or losses
arising from it. WEH assumes no guarantee, warranty, product liability or other
liability for any replacement or repair of the WEH®Product performed by you or a
third party. If you or a third party does not have the necessary skills and qualifi-
cation for proper performance, you must refrain from performing replacement or
repair. Otherwise, there is a particular risk of endangering yourself and third parties.
MD-10385-L51-R2.1.0-03 Page 7
Operating instructions AE
1�4 General safety instructions
ÎAlways comply with all applicable local, national and international requirements,
stipulations, decrees, laws, standards, provisions, directives, norms, regulations,
prohibitions and instructions as well as all applicable industrial, quality and tech-
nical standards. In particular, make sure that you and all users comply with the ap-
plicable requirements related to occupational health and safety as well as product
safety requirements and that all required permissions, certificates and approvals
have been obtained.
ÎThese operating instructions should be provided to anyone responsible for the
installation, operation and maintenance of this WEH®Product.
- The WEH®Product and these operating instructions are intended for use by
qualified personnel (see Chapter 1.5). Make these operating instructions available
in particular to the qualified personnel responsible for the individual phases of the
life cycle (especially for storage, installation, operation, inspection and mainte-
nance, troubleshooting and disposal) of the WEH®Product. The qualified personnel
must have read and understood these operating instructions.
ÎContact WEH before using the WEH®Product if the instructions in these operating
instructions are unclear in any way.
ÎTake appropriate safety measures if operating conditions exist that could endanger
the user.
ÎIn case of any damage that may affect the proper functioning of the WEH®Product,
do not use the WEH®Product until the situation has been clarified. Disassembly of
the WEH®Product may only be performed by WEH.
ÎComply with the assembly data indicated in these operating instructions. Tighten-
ing with higher torques/assembly turns can result in damage or even fractures
when the system is pressurized.
ÎDo not use any auxiliary materials or cleaning agents other than those indicated
in these operating instructions. Using other auxiliary materials or cleaning agents
may cause damage to the WEH®Product or to downstream components.
- WEH is not responsible for damage caused by external forces or other external
influences.
- It is assumed that only transport and storage facilities suitable for the storage of
the WEH®Product are used.
MD-10385-L51-R2.1.0-03
Page 8
Operating instructions
AE
ÎDo not apply any external forces to the WEH®Product. Therefore, do not lean on the
(connected) WEH®Product, do not hang on the WEH®Product and do not climb on
the WEH®Product under any circumstances. In addition, refrain from hammering
on the WEH®Product or similar. Such force effects can lead to damage to property
and personal injury. Also make sure that the WEH®Product is protected from being
stepped on or run over in any way.
- The WEH®Product can become very hot or very cold due to the possible fluids
flowing through it, depending on the application and operating situation. In this
regard, observe the national and international regulations on occupational health
and safety to prevent injuries.
1�5 Definition of qualified personnel
- Qualified personnel, as defined by these instructions, are persons who, based on
their professional training, their knowledge (including the relevant standards and
regulations), experience and manual skills, can independently assess and properly
perform assigned work tasks (in conjunction with WEH®Products) and can thus
independently recognize and prevent potential dangers at an early stage.
MD-10385-L51-R2.1.0-03 Page 9
Operating instructions AE
2. INTENDED USE
- The WEH®TVR2 Check valve has been exclusively designed for reliably preventing
return flow in a gaseous or liquid media flow.
ÎNever use the WEH®Product as a safety valve.
- The WEH®Check valves were only developed for reliable return flow prevention.
They are not designed to be used as filling or safety valves. The separation or shut
off between different media or a medium and vacuum also does not represent a
fundamental intended use. If you have such an application or a similar application,
please contact us!
Note: The TVR valve has not been designed for use as a body that creates a complete
seal between two operating media, or one operating medium and the atmosphere or a
vacuum. The functionality of the inner seal depends on the pressure differential in the
seal direction along with many other operating conditions.
ÎOnly use the WEH®Product for industrial applications. The product was designed
and tested for that purpose. For automotive application, products with special
approvals are required.
- The WEH®Product is outfitted with an FKM seal as a standard feature. Other sealing
materials are available on request. Before using the product, please check the media
compatibility of the seals with your application.
- Only install the WEH®Product into a line system if the same medium is applied on both
sides and the system is operated at nominal load. Operation of a system at partial load
can cause flow disruptions that take effect in the form of vibrations or noises.
ÎAlways ensure that the WEH®Product is used only within the range of its intended
use. Please note in particular the technical data of the WEH®Product in Chapter 4 as
well as the marking on the WEH®Product itself.
- This WEH®Product is generally classified as pressure accessory in accordance
with Article 2 (5) of the Pressure Equipment Directive 2014/68/EU and is con-
sidered to be similar to piping. This WEH®Product may not be used as safety
accessory. Furthermore, it is pointed out, that this WEH®Product is designed
and placed on the market in accordance with the requirements of Article 4 (3) of
the Pressure Equipment Directive 2014/68/EU. The assessment with regard to a
different classification can, however, be made on request.
Caution: Any use beyond the scope of application is considered as unintended use
and may result in personal injury and/or property damage.
MD-10385-L51-R2.1.0-03
Page 10
Operating instructions
AE
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