Weh TW156 User manual

WEH®- We Engineer Hightech
Type TW156
Operating instructions ⋅Betriebsanleitung Date: 09/22
WEH®Connector for testing respiratory protective equipment
WEH®Adapter zum Prüfen von Atemschutzgeräten

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 TW156� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 4
WEH®Connector for testing respiratory protective equipment
TYP TW156� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 28
WEH®Adapter zum Prüfen von Atemschutzgeräten
AE
DE

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 Installation of media line and pilot pressure line 16
7.3 Checking the connection for leak tightness 16
Type TW156
WEH®Connector for testing respiratory protective equipment
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Operating instructions
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The German version is the original.
Manufacturer: WEH GmbH Verbindungstechnik - hereafter referred to as 'WEH'.
8. OPERATION 17
8.1 Safety instructions for operation 17
8.2 Connection 18
8.3 Disconnection 21
9. INSPECTION | MAINTENANCE 22
9.1 Safety instructions for inspection and maintenance 22
9.2 Maintenance intervals 23
9.3 Overview of minimum intervals for inspection and maintenance 23
9.4 Maintenance 24
10. LUBRICATION 24
10.1 Safety instructions for lubrication 24
10.2 Lubrication 24
11. TROUBLESHOOTING 25
12. DISPOSAL 27
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1. INTRODUCTION
Dear Customer,
thank you for deciding to use our products.
The WEH®TW156 Connector has been developed for testing respiratory protective
equipment.
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 follow-
ing 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 proper-
ty 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.
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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 lia-
bility 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 qualification for
proper performance, you must refrain from performing replacement or repair. Other-
wise, there is a particular risk of endangering yourself and third parties.
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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.
Caution: Incorrect application poses a risk to the user's health and can cause
property damages. The consequences of incorrect application could include the
following:
- the connector or parts of the connector become loose under pressure
- media that may be under pressure, hot or toxic, can escape
- connection hoses vibrate dangerously
- 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.
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- It is assumed that only transport and storage facilities suitable for the storage of
the WEH®Product are used.
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 ensure 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.
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2. INTENDED USE
- The WEH®TW156 Connector has been developed for testing respiratory protective
equipment.
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.
- If you have ordered a customized adaptation from us, the WEH®Connector has
been specially adapted to the requirements and applications on which you have
based your order. The underlying requirements and applications are only
considered confirmed if they have been expressly agreed to in writing by WEH. The
connector may not be used for applications and requirements other than those
confirmed in writing by WEH.
- Mixed operation of media can lead to consequential damage, e.g. due to residues
or contamination, especially in connection with oxygen. Therefore, make sure that
the necessary framework conditions (e.g. purity) for operation with the respective
medium are given.
- 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.
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3. PRODUCT OVERVIEW / PRODUCT DESCRIPTION
Pos� Description
1 Base unit 2 Hand lever 3 Actuator peg 4 Valve button 5 Grub screw 6 Pneumatic actuation
Definition of ports
B1 Media inlet P1 Pilot pressure supply line P2 Pilot pressure supply line
Extension 130 mm
Extension 90 mmExtension 65 mm
Adaptors
2
1
4
6
5
P1
P2
B1
B1
B1 B1
3
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4. TECHNICAL DATA
Please note: Depending on the application, the technical data of your WEH®Product
may differ from these operating instructions. Please therefore observe the marking on
the WEH®Product itself.
Characteristics Basic version
Max. allowable operating
pressure PS 375 bar
Pilot pressure 6–12bar compressed air
Pilot pressure port P1 G1/8“ female thread
Pilot pressure port P2 G1/4“ female thread
Temperature range +5°C to +80°C
Medium Breathing air (compressed air)
Part materials Wear-resistant stainless steel, corrosion-resistant surfaces.
extensions: chrome plated / brass
Sealing materials NBR
Actuation
H = Manual actuation via hand lever
V = Pneumatic actuation via the valve button
P = Pneumatic actuation for external manual, semi-automatic or
fully automatic control systems
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5. STORAGE
5�1 Safety instructions for proper storage
ÎMake sure that you always comply with these following safety instructions and stor-
age time.
Attention: Improper storage of the WEH®Product can significantly reduce the maxi-
mum service life.
ÎProtect the WEH®Product against damage, contamination, inappropriate storage
and excessive temperature fluctuations.
ÎStore the WEH®Product, the accessories and spare parts in the original packaging
until they are used for the first time and during periods when they are not being
used.
ÎStore the WEH® Product within a temperature range of -40 °C up to +40 °C.
Storage temperatures outside this range may affect the service life of the
WEH®Product.
ÎDo not store the WEH®Product in the vicinity of heat sources. Avoid humidity and
condensation. The ideal relative air humidity for storage is approx. 65%.
ÎDo not store the WEH®Product together in the same space with solvents,
chemicals, acids, fuels or disinfectants.
ÎProtect the WEH®Product against light, in particular direct sunlight, oxygen, ozone,
heat, UV radiation, and other negative environmental influences. The service life of
parts made of elastomer or plastic may be substantially reduced by such environ-
mental factors.
ÎDo not stack WEH®Products. For storage and retrieval, follow the first-in-first-out
(FIFO) principle.
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5�2 Storage
ÎFollow the safety instructions in Chapter 5.1 and observe the following storage
times. The appropriate storage period applies from the date of delivery (i.e. the date
of invoicing or goods issue date as recorded by WEH or its distributor). If the
WEH®Product is installed in a complete system, the storage time depends on the
component with the shortest storage time.
Up to 3 years
Note: If you should have any doubts about the aging state of the stored
WEH® Product, please contact WEH.
Attention: Before commissioning, check the WEH® Product for leak
tightness. On this topic, see Chapter 7. Installation on page 15.
> 3 years - Before use, all elastomer seals must be replaced.
ÎFor this, send the WEH®Product to WEH for maintenance.
6. REQUIRED TOOLS
Part no� Description Installation
Mainte-
nance &
Lubrication
-- Suitable calibrated torque wrench
(suitable for the corresponding torque) X
-- Suitable open-ended wrench insert
(suitable for the relevant wrench sizes and torque wrench) X
-- Vice with aluminium jaws X
E99-44923 WEH®Lubricant X
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7. INSTALLATION
7�1 Safety instructions for installation
ÎCheck the information provided in these operating instructions and the label on the
WEH® Product. The information must conform to your application.
ÎOnly connect the WEH®Product to faultless connections.
ÎCheck the WEH®Product for transport damages, contamination and other damage. If
you should detect anything wrong with the WEH®Product, it may no longer be used.
Replace the WEH®Product or send it to WEH for maintenance.
ÎRemove transport securing devices (such as protection caps) before installing the
WEH®Product. Transport securing devices serve the purpose of protecting the
product and connection ports during transport and storage. The transport securing
devices are not, for example, designed to withstand pressure or to be used as plugs.
ÎEnsure that the system is depressurized. Installation must only be effected in
depressurized condition.
ÎAvoid using excessively short media lines and narrow bending radii. Lateral forces
may cause leakages or damage to components and make it more difficult to attach
the WEH®Connector properly.
ÎUse arrestor cables, partitions, etc. for additional safety where being used for haz-
ardous applications or under hazardous conditions.
ÎUSIT rings should be used to seal the ports.
ÎBefore installation, check if the counterparts are designed to withstand the assembly
data (see Chapter 7.2 Installation of media line and pilot pressure line) that WEH
determined for this WEH®Product.
Note: The indicated assembly data (tightening torques, assembly turns etc.) are values
that apply only to the components delivered by WEH.
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7�2 Installation of media line and pilot pressure line
Please note: Subsequent mentions of descriptions and position numbers refer to
Chapter 3. Product overview / product description on page 11.
ÎUnscrew the protection caps from the ports.
ÎClamp the WEH®Connector in a vice with aluminium clamping jaws to mount the
media line and pilot pressure line.
Note: The WEH®Connector must not be damaged during clamping.
ÎScrew the ‘B1’ media inlet pressure-tight to the port for the media line (see figure in
Chapter 3. Product overview / product description on page 11).
For the tightening torque, please refer to the table below.
ÎScrew the pilot pressure port ‘P1’ or ‘P2’ (see figure in Chapter 3. Product overview
/ product description on page 11) pressure-tight to the connection port of the
pilot pressure line.
For the tightening torque, please refer to the table below.
Connections Torque
G5/8" male thread 25 Nm ± 2 Nm
G1/2“ female thread 50 Nm ± 2 Nm
M16x1.5 male thread 35 Nm ± 2 Nm
ÎPlease note the connection size marked on your product.
- Other connection sizes are available on request.
7�3 Checking the connection for leak tightness
ÎConnect the connector to a closed test piece.
ÎSlowly apply the operating pressure to the connector and media line.
Caution: The test piece must be closed.
ÎCheck the connector, the connection to the media line and pilot pressure line and
the connection to the test piece for leak tightness.
Attention: Do not use a leak detection spray that contains ammonia, since this could
cause corrosion of the connector.
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8. OPERATION
8�1 Safety instructions for operation
Please note: Subsequent mentions of descriptions and position numbers refer to
Chapter 3. Product overview / product description on page 11.
ÎApply pressure to the WEH®Connector only once it has been connected to a test
piece.
ÎDo not use excessive force when actuating.
ÎFollow the steps in exactly the right order when connecting and disconnecting the
WEH®Connector.
ÎAttach and detach the WEH®Connector only when it is not under pressure.
ÎConnect the WEH®Connector only to test pieces in full working order.
ÎAlign the WEH®Connector correctly with the test piece to prevent any damage to the
seal on the test piece and damage to the connector.
ÎOnce the connection has been made, always test the connection by tugging a little
on the WEH®Connector to make sure that is fully engaged and that the clamping
jaws are gripping correctly before introducing the pressurized test medium.
ÎThe clamping jaws of the WEH®Connector are designed to grip the test piece. Keep
fingers and other objects away from the clamping jaws when actuating the
connector.
Caution: Possible consequences of non-compliance are:
– Risk of fingers being crushed when connecting
– Risk to human safety and risk of damage to property by parts detaching at high
pressure
– Risk to human health by media being released at high pressure
– Risk to human safety by hoses not being secured
ÎThe WEH®Connector is not fitted with an integrated shut-off valve and thus will
not prevent loss of test medium when disconnecting. Therefore it is important to
disconnect the connector only under absolutely safe conditions.
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8�2 Connection
Connection of a TW156H
ÎActuate the hand lever (Pos. 2) (Figure 1). The clamping
jaws open.
ÎBe careful to place the connector with actuated clamping
lever (Pos. 2) straight and fully up to the stop onto the test
piece. Doing so will prevent any damage to the seal on the
test piece and damage to the connector and ensure a
correct connection.
Attention: Insert the connector carefully and not with
force onto the test piece.
ÎRelease the hand lever (Pos. 2). The connector tightens itself
to the test piece and creates a pressure-tight connection.
(Figure 2).
Attention: Make sure that the clamping jaws on the test
piece grip correctly, that the connector is seated properly
(it must not wobble) and that the pressure-tight connection
has been made.
ÎIn addition, screw the test piece into the connector hand-tight with a 1/4turn
(Figure 3).
Attention: The red ring must no longer be visible (Figure 4). Only then is the connec-
tor connected correctly. Otherwise the connector may spring out of place and
medium may escape. If the red ring is still visible, then the connector is not
correctly connected (Figure 5). Repeat the connecting procedure.
ÎPull lightly on the connector in the direction opposite that of the connection to
make sure that the connector is firmly in place.
- The connector is now connected pressure-tight to the test piece.
ÎTo start the testing procedure, apply pressure to media inlet ‘B1’.
Figure 2
Figure 1
Figure 4 Figure 5
Red ring
Figure 3
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Connection of a TW156V
ÎApply pneumatic pilot pressure to the connector.
ÎPress the valve button (Pos. 4) (Figure 6). The clamping
jaws open.
ÎBe careful to place the connector with actuated valve button
(Pos. 4) straight and fully up to the stop onto the test piece.
Doing so will prevent any damage to the seal on the test
piece and damage to the connector and ensure a correct
connection.
Attention: Insert the connector carefully and not with
force onto the test piece.
ÎRelease the valve button (Pos. 4). The connector tightens
itself to the test piece and creates a pressure-tight connec-
tion (Figure 7).
Attention: Make sure that the clamping jaws on the test
piece grip correctly, that the connector is seated properly
(it must not wobble) and that the pressure-tight connec-
tion has been made.
ÎIn addition, screw the test piece into the connector hand-tight with a 1/4turn
(Figure 8).
Attention: The red ring must no longer be visible (Figure 9). Only then is the connec-
tor connected correctly. Otherwise the connector may spring out of place and
medium may escape. If the red ring is still visible, then the connector is not
correctly connected (Figure 10). Repeat the connecting procedure.
ÎPull lightly on the connector in the direction opposite that of the connection to
make sure that the connector is firmly in place.
- The connector is now connected pressure-tight to the test piece.
ÎTo start the testing procedure, apply pressure to media inlet ‘B1’.
Figure 7
Figure 6
Figure 9 Figure 10
Red ring
Figure 8
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Connection of a TW156P
ÎApply pneumatic pilot pressure to the connector. The
clamping jaws open.
ÎBe careful to place the connector with applied pilot pres-
sure straight and fully up to the stop onto the test piece.
Doing so will prevent any damage to the seal on the test
piece and damage to the connector and ensure a correct
connection.
Attention: Insert the connector carefully and not with
force onto the test piece.
ÎVent the pilot pressure again. The connector tightens itself to the test piece and creates
a pressure-tight connection (Figure 11).
Attention: Make sure that the clamping jaws on the test piece grip correctly, that
the connector is seated properly (it must not wobble) and that the pressure-tight
connection has been made.
ÎIn addition, screw the test piece into the connector hand-tight with a 1/4turn
(Figure 12).
Attention: The red ring must no longer be visible (Figure 13). Only then is the
connector connected correctly. Otherwise the connector may spring out of place
and medium may escape. If the red ring is still visible, then the connector is not
correctly connected (Figure 14). Repeat the connecting procedure.
ÎPull lightly on the connector in the direction opposite that of the connection to
make sure that the connector is firmly in place.
- The connector is now connected pressure-tight to the test piece.
ÎTo start the testing procedure, apply pressure to media inlet ‘B1’.
Figure 11
Figure 13 Figure 14
Red ring
Figure 12
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