Transcript WEH® Connectors

Catalogue 40
WEH® Connectors
for filling, evacuating and testing
of refrigeration and air conditioning components
Refrigeration and air conditioning
Date: 10/2013
WEH® - We Engineer Hightech
© All rights reserved, WEH GmbH 2013.
Unauthorized copies are strictly forbidden as well as the publishing and using without the written consent of the WEH company.
By the transfer of an up to date brochure or document all precursory versions will run out of validity. As a matter of principle the latest up to
date version of brochures and other documents are valid. These versions can be inquired by the WEH company.
Our general terms and conditions and the agreement on protection of know-how and quality assurance (www.weh.com) are valid for consignments and all other services, unless otherwise agreed. We do not accept general terms and conditions of the purchaser.
WEH® is a registered trademark of the WEH GmbH.
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» Table of contents
1 |
Refrigeration and air conditioning industry��������������������������������������������������������������������������� 4
1.1 | Introduction����������������������������������������������������������������������������������������������������������������������������������������������������� 4
1.2 | Overview����������������������������������������������������������������������������������������������������������������������������������������������������������� 6
2 |
WEH® Connectors for filling and testing���������������������������������������������������������������������������������� 8
2.1 | TW111���������������������������������������������������������������������������������������������������������������������������������������������������������������� 8
2.2 | TW111 R410A������������������������������������������������������������������������������������������������������������������������������������������������ 10
2.3 | TW110�������������������������������������������������������������������������������������������������������������������������������������������������������������� 12
2.4 | TW108�������������������������������������������������������������������������������������������������������������������������������������������������������������� 14
2.5 | TW52���������������������������������������������������������������������������������������������������������������������������������������������������������������� 16
2.6 | TW141�������������������������������������������������������������������������������������������������������������������������������������������������������������� 20
2.7 | TW141L����������������������������������������������������������������������������������������������������������������������������������������������������������� 24
2.8 | TW230�������������������������������������������������������������������������������������������������������������������������������������������������������������� 26
2.9 | TW241�������������������������������������������������������������������������������������������������������������������������������������������������������������� 30
2.10 | TW920�������������������������������������������������������������������������������������������������������������������������������������������������������������� 34
3 |
Further information���������������������������������������������������������������������������������������������������������������������������������� 38
3.1 | Technical appendix������������������������������������������������������������������������������������������������������������������������������������� 38
3.2 | Brochure data����������������������������������������������������������������������������������������������������������������������������������������������� 39
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1 |Refrigeration and air conditioning industry
1.1 |
Introduction
» Introduction
WEH® – Your Connection for Refrigerating and Air Conditioning
Gain real cost savings by simplifying production processes
WEH offers many advanced quick connectors that make connection to fluid lines easier, more reliable and with high
integrity sealing. WEH has a suitable quick connector for almost any refrigerant filling application whether for refrigerators,
ice machines, air conditioning systems, water coolers or other similar application. The cost savings during production and
servicing resulting from easy, fast connection can be considerable.
Unique WEH® Jaw locking mechanism
All quick connectors have the unique WEH® Jaw locking mechanism developed by WEH. Hard
wearing jaws clamp securely and safely. Jaw designs cater for a variety of different connections,
including internal and external threads, straight tubes, holes and bores among others. Laborious
screwing and unscrewing of hoses is eliminated. A pressure-tight connection for your application is
guaranteed using the latest sealing technology.
Climate protection made easy
Using WEH® Connectors can reduce refrigerant loss by up
to 99 % when servicing refrigeration and air conditioning
units.
The demand for refrigerants continues to grow with the
increased use of air conditioning and the demand for chilled
drinks, food preservation and industrial chilling. Servicing
operations account for almost 16 tonnes of refrigerant per
year escaping into the environment as the result of connecting
and disconnecting hoses to air conditioning and refrigerating
equipment. By using a WEH® TW111 Quick Connector these
losses could be reduced by 99 %. The ingenious device
incorporates an integrated shut off valve, which contains
the gas inside the hose when connecting and disconnecting.
This concept has been endorsed by the German research
institute FKW in Hannover.
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» Introduction
Application
Quick connectors for connection to straight tubes, holes, bores and threads. Evacuating and filling of refrigerators, air
conditioners, refrigerating plants etc.
Pressure and function testing of straight tubes, for example on heat exchangers, pressure vessels, compressors,
evaporators, etc.
Benefits
Pressure-tight connection in seconds
No hand tightening
Easy operation
Robust construction
Ergonomic design
TW110 | For filling refrigerants in automotive air conditioning
equipment during production
| www.weh.com
TW141L | Testing of difficult-to-access heat exchangers
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1 |Refrigeration and air conditioning industry
Overview
1.2 |
» Overview
Overview of WEH® Connectors
Connection type
TW111
R410A
TW111
TW110
TW108
TW52
TW141
TW141L
TW230
TW241
TW920
External thread
SAE J513
Beads
(outerØ)
Straight tubes
(outerØ)
Straight tubes
(innerØ)
Bores
filling and evacuating refrigerants in refrigerating and air conditioning plants
Refrigeration and air conditioning equipment has to be filled with refrigerants already during production and later on refilled
repeatedly for maintenance purposes. WEH can offer suitable filling connectors.
Type
TW111
R410A
TW111
Filling and maintenance of
air conditioning systems with
„Schrader valves“
Application
TW110
TW108
TW52
TW920
Filling of
automotive air
conditioning
equipment during
production
Filling of
automotive air
conditioning
equipment during
maintenance
Filling of
CO2 or
refrigerants
Filling of
cylinders with
residual pressure
valves (RPV)
Operating
pressure PS
Max. 30 bar
Max. 42 bar
Max. 35 bar
Max. 35 bar
Max. 250 bar
or 150 bar with
TVCO2 linear valve
Max. 40 bar
Medium
Refrigerants
Refrigerant R410A
Refrigerants
Refrigerants
CO2, Refrigerants
Refrigerants
Tube Ø 11 mm
Tube Ø 13 mm
W21.8x1/14“
external thread
G1/2“
external thread
TR21x4.5
external thread
W21.8x1/14“
external thread
UNF 7/16“-20
external thread
Port A
UNF 1/2“-20
external thread
Others
Tube Ø 11 mm
Tube Ø 13 mm
Integrated shut-off valve
-
Testing of Tube connections
Simple test procedures speed up operation. Using heat exchanger testing as an example, the tubing must already be tested
for leak tightness prior to assembly. WEH offers a variety of quick connectors to suit the different operating requirements of
each manufacturer.
TW141
TW141L
TW230
TW241
Sealing range
Type
Ø 3.5 - Ø 22.2 mm tube OD
Ø 15.0 mm tube OD
Ø 9.5 - Ø 22.2 mm tube ID
Ø 6.0 - Ø 22.2 mm tube OD
Operating pressure PS
Vacuum up to max. 100 bar
Vacuum up to max. 100 bar
Vacuum up to max. 70 bar
Vacuum up to max. 70 bar
O-ring sealing
O-ring sealing
O-ring sealing
Special seal
3 to 5 mm
5 mm
2 to 4 mm
2 to 6 mm
Seals
Nominal bore DN*
* The flow rate directly depends on the inner diameter of the tube
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» Overview
ILLUSTRATIONS
TW141 for testing straight tubes
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2.1 |
TW111
» WEH® Connector TW111
Description
Features
• Connection in seconds
• No hand tightening required
• For connection to ‘Schrader valves’ acc. to SAE J513
• Small outer diameter
• WEH® Jaw locking mechanism
• Reduces down time and loss of refrigerant
• No frostbitten hands
• Also available with 90° media inlet
• High-grade materials
Sliding sleeve
The WEH® TW111 Quick Connector is now available with a reduced outside diameter of only 25 mm.
It is specifically designed for filling and maintenance of refrigeration and air conditioning systems and plants. Compared to
conventional screwed connectors, the escape of refrigerants from the WEH® Connector during connection and disconnection
is reduced by 99 %. Thus saving costs - and far more importantly - our environment.
RSI resulting in the inflammation of tendons and abrasion of joints caused by continuous screwing and unscrewing of threaded
joints is eliminated. Connection and disconnection is effected by a simple movement of the sliding sleeve. The integrated shutoff valve prevents the escape of refrigerant which remains in the filling tube and can then be correctly disposed of.
The TW111 is equipped with a UNF 7/16“-20 thread (equivalent to 1/4“ – SAE tube connection) and is either available for high
pressure (red sliding sleeve) or for low pressure (blue sliding sleeve).
WEH® TW111 is also available with 90° media inlet.
Application
Quick connector for filling refrigerants in refrigerating and air conditioning systems with ‘Schrader valves’.
TECHNIcal DATa
Characteristic
Basic version
Operating pressure PS*
Max. 30 bar
Temperature range
-10 °C up to +80 °C
Medium
Refrigerants (please indicate when ordering)
Actuation
Manual actuation via sliding sleeve
Material
Brass, anodized aluminium
Sealing material
Dependant on medium
Design
Incl. integrated shut-off valve
Example of use:
* Please note that the pressure may be higher for some refrigerants, as i.e. R407A,
R407B, R410A, R507 in case of high ambient temperatures!!
Other designs on request
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» WEH® Connector TW111
Ordering | WEH® TW111 Quick Connector with inline media inlet
approx. dimensions (mm)
76
Ø 25
A
B1
14
Ø 17
53
Part No.
Description
Connection A
(external thread)
Inlet B1
(external thread)
C1-102991
TW111 - high pressure (red)
UNF 7/16“-20*
UNF 7/16“-20*
C1-102993
TW111 - low pressure (blue)
UNF 7/16“-20*
UNF 7/16“-20*
* acc. to SAE J513 (45°)
Ordering | WEH® TW111 Quick Connector with 90° media inlet
approx. dimensions (mm)
72
B1
Ø 17
Ø 25
A
33
53
Part No.
Description
Connection A
(external thread)
Inlet B1
(external thread)
C1-102992
TW111 - high pressure (red)
UNF 7/16“-20*
UNF 7/16“-20*
C1-102994
TW111 - low pressure (blue)
UNF 7/16“-20*
UNF 7/16“-20*
* acc. to SAE J513 (45°)
Other connector sizes and versions on request.
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2.2 |
TW111 R410A
» WEH® Connector TW111 R410A
Description
Features
• Connection in seconds
• No hand tightening required
• For connection to ‘Schrader valves’ acc. to SAE J513
• WEH® Jaw locking mechanism
• Reduces down time and loss of refrigerant
• No frostbitten hands
• High-grade materials
Sliding sleeve
The product range for the refrigeration and air conditioning industry has been extended by the addition of a further connector
for filling R410A refrigerant. The WEH® TW111 Quick Connector is specifically designed for filling and maintenance of refrigeration and air conditioning systems and plants with ‘Schrader valves’ which need to be connected and disconnected
under pressures up to a maximum of 42 bar.
RSI resulting in the inflammation of tendons and abrasion of joints caused by continuous screwing and unscrewing of threaded
joints is eliminated. Connection and disconnection is effected by a simple movement of the sliding sleeve. The integrated shutoff valve prevents the escape of the R410A refrigerant which remains in the filling tube and can then be correctly disposed of.
The TW111 for R410A is equipped with an UNF 1/2“-20 (equivalent to 3/8“ – SAE tube connection) and is either available for
high pressure (red sliding sleeve) or for low pressure (blue sliding sleeve).
Application
Quick connector for filling refrigerant R410A in refrigerating and air conditioning systems with ‘Schrader valves’.
TECHNIcal DATa
Characteristic
Basic version
Operating pressure PS
Max. 42 bar
Temperature range
-10 °C up to +80 °C
Medium
Refrigerant R410A
Actuation
Manual actuation via sliding sleeve
Material
Brass, anodized aluminium
Sealing material
Dependant on medium
Design
Incl. integrated shut-off valve
Example of use:
Other designs on request
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» WEH® Connector TW111 R410A
Ordering | WEH® TW111 R410A Quick Connector
approx. dimensions (mm)
79
Ø 33
A
Ø 22
14
B1
53
Part No.
Description
Connection A
(external thread)
Inlet B1
(external thread)
C1-30291
TW111 - high pressure (red)
UNF 1/2“-20*
UNF 1/2“-20*
C1-30290
TW111 - low pressure (blue)
UNF 1/2“-20*
UNF 1/2“-20*
C1-34797
TW111 - high pressure (red)
UNF 1/2“-20*
UNF 7/16“-20*
C1-34796
TW111 - low pressure (blue)
UNF 1/2“-20*
UNF 7/16“-20*
* acc. to SAE J513 (45°)
Other connector sizes and versions on request.
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» WEH® Connector TW111 R410A
Ordering | WEH® TW111 R410A Quick Connector
approx. dimensions (mm)
79
Ø 33
A
Ø 22
14
B1
53
Part No.
Description
Connection A
(external thread)
Inlet B1
(external thread)
C1-30291
TW111 - high pressure (red)
UNF 1/2“-20*
UNF 1/2“-20*
C1-30290
TW111 - low pressure (blue)
UNF 1/2“-20*
UNF 1/2“-20*
C1-34797
TW111 - high pressure (red)
UNF 1/2“-20*
UNF 7/16“-20*
C1-34796
TW111 - low pressure (blue)
UNF 1/2“-20*
UNF 7/16“-20*
* acc. to SAE J513 (45°)
Other connector sizes and versions on request.
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2.3 |
TW110
» WEH® Connector TW110
Description
Features
• Connection in seconds
• No hand tightening required
• WEH® Jaw locking mechanism
• High-grade materials
Sliding sleeve
The WEH® TW110 Quick Connector is specifically designed for filling and evacuating refrigerants in automotive air conditioning
equipment.
The integrated shut-off valve and a minimal residual volume give good environmental performance. The TW110 is constructed
from corrosion-resistant stainless steel. The connector is ideal for continuous operation due to its compact design.
Application
Quick connector for filling and evacuating refrigerants in automotive air conditioning equipment.
TECHNIcal DATa
Characteristic
Basic version
Operating pressure PS
Max. 35 bar
Temperature range
-10 °C up to +80 °C
Medium
Refrigerants (please indicate when ordering)
Actuation
Manual actuation via sliding sleeve
Material
Corrosion-resistant stainless steel
Sealing material
Dependant on medium
Design
Incl. integrated shut-off valve
Example of use:
Other designs on request
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» WEH® Connector TW110
Ordering | WEH® TW110 Quick Connector
approx. dimensions (mm)
77
64
Ø 28.5
Ø 20
A
B1
x*
Part No.
Description
Connection A
Inlet B1
(internal thread)
C1-1748
TW110
Ø 11
G1/4“
C1-1749
TW110
Ø 13
G1/4“
* The connection depth of each customer’s receptacle valve may vary. Therefore a sample or dimensioned drawing
is needed for each order
Other connector sizes and versions on request.
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2.4 |
TW108
» WEH® Connector TW108
Description
Features
• Connection in seconds
• No hand tightening required
• WEH® Jaw locking mechanism
• High-grade materials
Sliding sleeve
The WEH® TW108 Quick Connector is a good reasonably priced alternative to the WEH® TW110 for connections where
continuous use is not required. It is therefore the ideal choice for leak-tight filling during maintenance work.
All parts are made of high-grade materials with brass clamping jaws. The integrated shut-off valve prevents the escape of
ozone depleting refrigerants to a minimal residual volume.
The TW108 quick connector is available for high pressure (red sliding sleeve) or for low pressure (blue sliding sleeve).
Application
Quick connector for filling and evacuating refrigerants during maintenance of automotive air conditioning equipment.
TECHNIcal DATa
Characteristic
Basic version
Operating pressure PS
Max. 35 bar
Temperature range
-10 °C up to +80 °C
Medium
Refrigerants (please indicate when ordering)
Actuation
Manual actuation via sliding sleeve
Material
Brass, anodized aluminium
Sealing material
Dependant on medium
Design
Incl. integrated shut-off valve
Example of use:
Other designs on request
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» WEH® Connector TW108
Ordering | WEH® TW108 Quick Connector
approx. dimensions (mm)
80
Ø 30
A
Ø 20
14
B1
53
Description
Connection A
Inlet B1
(external thread)
C1-14455
TW108 - high pressure (red)
Ø 13
UNF 7/16“-20*
C1-14458
TW108 - low pressure (blue)
Ø 11
UNF 7/16“-20*
C1-14455/1
TW108 - high pressure (red)
Ø 13
UNF 5/8“-18*
C1-14458/1
TW108 - low pressure (blue)
Ø 11
UNF 5/8“-18*
Part No.
* acc. to SAE J513 (45°)
Other connector sizes and versions on request.
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2.5 |
TW52
» WEH® Connector TW52
Description
Grip sleeve
Features
• Suitable for filling of CO2 or refrigerants
• Version for residual pressure valves or non-residual
pressure valves available
• Connection in seconds
• No hand tightening required
• High safety due to pressure-assisted piston
• Environmentally friendly - a vent pipe recirculates the
vented gas (in conjunction with TVCO2)
• WEH® Jaw locking mechanism
• High-grade materials
The WEH® TW52 Quick Connector has been developed especially for filling gas cylinders with gaseous and liquid CO2 or
refrigerants. Connection to the cylinder is made within seconds without tedious screwing and unscrewing, thus preventing
RSI resulting in the inflammation of tendons and abrasion of joints.
The connector is also suitable for filling one litre cylinders, e.g. for soda drinks.
The TW52 is optionally available with the WEH® TVCO2 linear valve.
This quick connector is available for gas cylinder valves acc. to DIN, BS, NF, CGA etc.
Application
Quick connector for filling of gas cylinders with external thread (with or without a residual pressure valve) with CO2 or
refrigerants.
TECHNIcal DATa
Characteristic
Basic version
Nominal bore DN
5 mm
Operating pressure PS
Max. 250 bar
Max. 150 bar (TW52 with TVCO2 linear valve)
Temperature range
-40 °C up to +40 °C (CO2)
Connection A
External thread connection acc. to the corresponding
national standard e.g. DIN, CGA, BS, NF etc.
Medium
CO2, refrigerants
Actuation
Manual actuation via grip sleeve
Material
Corrosion resistant stainless steel, brass
Sealing material
EPDM
Design
With or without RPV pin
Registration
PED97/23/EC: CE0036 (not valid for TVCO2)
Example of use:
Other designs on request
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» WEH® Connector TW52
Ordering | WEH® TW52 Quick Connector for non-residual pressure valves
Ø 60
Ø 48
Ø 28
B1
D1
A
approx. dimensions (mm)
35.5
55.5
103
Inlet B1
(internal thread)
D1
G1/2“
G1/4“
38
TW52
TR21x4,5
G1/4“
36
TW52
W21.8x1/14“*
G1/4“
36
Part No.
Description
C1-16560
TW52
C1-17069
C1-16564
Connection A
(external thread)
* acc. to DIN 477
Ordering | WEH® TW52 Quick Connector for non-residual pressure valves (suitable for TVCO2 linear valve)
approx. dimensions (mm)
103
55.5
12
Ø 60
Ø 48
Ø 28
B1
Ø 36
A
35.5
Part No.
Description
Connection A
(external thread)
Inlet B1
(external thread)
C1-16563
TW52
W21.8x1/14“*
M16x1.5
* acc. to DIN 477
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» WEH® Connector TW52
Ordering | WEH® TW52 Quick Connector for residual pressure valves (incl. linear valve)
Ø 60
Ø 48
Ø 28
B1
Ø 36
A
approx. dimensions (mm)
35.5
55.5
188
Part No.
Description
Connection A
(external thread)
Inlet B1
(internal thread)
C1-68486
TW52
W21.8x1/14“*
G3/8“
* acc. to DIN 477
Other connection sizes and versions on request.
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» WEH® Connector TW52
Accessories
The following accessories are available for WEH® TW52:
WEH® TVCO2 Linear Valve
The TW52 offers a complete solution for TVCO2 filling in conjunction with our optional TVCO2 linear valve. Simply connect the filling hose to
our TVCO2 linear valve and pressurize the system. Filling can then proceed. When disconnecting after filling the TW52 vents automatically.
The vented gas can be recirculated via a vent pipe and vented remotely, with minimum environmental impact.
297
201
71,5
73
B1
B2
Ø 28
87
Part No.
Description
Connection B1
(internal thread)
Connection B2
(internal thread)
C1-34605
TVCO2
G1/4“
M16x1.5
Other connection sizes and versions on request.
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2 |WEH® Connectors for filling and testing
2.6 |
TW141
» WEH® Connector TW141
Description
Hand lever
Features
• Connection in seconds
• No hand tightening required
• For connection onto straight tubes, sealing on the
exterior diameter
• No lateral forces generated on connection
• WEH® Jaw locking mechanism
• Ergonomic design
• High-grade materials
The WEH® TW141 Quick Connector provides pressure-tight connections on straight tubes and has earned a reputation for
ease of operation. The TW141 is a lever-actuated connector, which creates no lateral forces that can distort the test piece
or filling port when connecting and disconnecting. The TW141 is fitted with an internal safety feature which prevents the
connector from being removed until a pressure lower than 5 bar is attained.
Application
Quick connector for pressure and function testing of straight tubes, as for example leak testing of heat exchangers,
air conditioning components, tube assemblies and automotive fuel systems.
Filling of closed cooling circuits with refrigerants.
TECHNIcal DATa
Characteristic
Basic version
Operating pressure PS
Vacuum up to max. 100 bar
Temperature range
-10 °C up to +80 °C
Leak rate
1 x 10-4 mbar x l/s
Medium
Refrigerants, air, gas, water, oil, etc.
(please indicate when ordering)
Actuation
Manual actuation via hand lever
Material hardness of
test piece
Max. hardness 28 HRC
Connection to copper tubes
Material
Clamping jaws: Corrosion resistant stainless steel
Housing: Anodized aluminium
Sealing material
Depending on medium
Example of use:
Other designs on request
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» WEH® Connector TW141
Ordering | WEH® TW141 Quick Connector − Ø A 3.5 mm up to Ø A 8.15 mm
Ø 28
B1
D1
A
approx. dimensions (mm)
Lmin
15
L2
100
Part No.
Sealing range
ØA
Tolerance
Inlet B1
(external thread)
L2*
D1
Lmin**
C1-32399
3.5
± 0.2
NPT 1/4“
14.5
27
21
C1-32398
4.0
± 0.2
NPT 1/4“
14.5
27
21
C1-17749
4.8 (3/16")
± 0.2
NPT 1/4“
14.5
27
21
C1-18575
5.0
± 0.2
NPT 1/4“
14.5
27
21
C1-14967
6.0
± 0.2
NPT 1/4“
13.0
27
21
C1-17606
6.35 (1/4")
± 0.2
NPT 1/4“
11.0
27
21
C1-18198
7.0
± 0.2
NPT 1/4“
15.0
27
21
C1-17750
7.9 (5/16")
± 0.2
NPT 1/4“
13.0
27
21
C1-14968
8.0
± 0.2
NPT 1/4“
13.0
27
21
C1-18960
8.15
± 0.2
NPT 1/4“
13.0
27
21
* Due to customers specific applications and pressure ranges the dimensions can differ from the stated
standard sizes.
** Lmin: minimum length required for insertion of test piece
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21
2 |WEH® Connectors for filling and testing
» WEH® Connector TW141
Ordering | WEH® TW141 Quick Connector − Ø A 9 mm up to Ø A 22.2 mm
Ø 28
B1
D1
A
D2
approx. dimensions (mm)
Lmin
15
L2
L1
Part No.
Sealing range
ØA
Tolerance
Inlet B1
(external thread)
D1
D2
L1*
L2
Lmin**
C1-32473
9.0
± 0.2
NPT 1/4“
21
33
136.5
26
21
C1-17536
9.5 (3/8")
± 0.1
NPT 1/4“
21
33
136.5
26
21
C1-17808
9.6
± 0.1
NPT 1/4“
21
33
136.5
26
21
C1-16773
10.0
± 0.1
NPT 1/4“
19
33
133.5
23
15
C1-16774
12.0
± 0.1
NPT 1/4“
21
33
134.0
23
15
C1-17751
12.7 (1/2")
± 0.1
NPT 1/4“
24
33
133.5
23
15
C1-16775
15.0
± 0.1
NPT 1/4“
24
33
133.5
23
15
C1-17959
15.9 (5/8")
± 0.1
NPT 1/4“
32
49
133.5
23
15
C1-16776
16.0
± 0.1
NPT 1/4“
32
49
133.5
23
15
C1-16777
18.0
± 0.1
NPT 1/4“
34
49
133.5
23
15
C1-18006
19.05 (3/4")
± 0.1
NPT 1/4“
34
49
133.5
23
15
C1-17687
20.0
± 0.1
NPT 1/4“
34
49
134.0
23
15
C1-16778
22.0
± 0.1
NPT 1/4“
38
49
133.5
23
15
C1-17939
22.2 (7/8")
± 0.1
NPT 1/4“
38
49
133.5
23
15
* Due to customers specific applications and pressure ranges the dimensions can differ from the stated
standard sizes.
** Lmin: minimum length required for insertion of test piece
Other connector sizes and versions on request.
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» WEH® Connector TW141
Accessories
The following accessories are available for WEH® TW141:
Adaptors / Plugs
Different adaptors for other media inlets are available. If the connector is to be used as a plug, the media inlet ‘B1’ can be sealed.
Adaptor
Plug
Part No.
Description
C1-30810
Adaptor
NPT 1/4" internal thread - G1/4" internal thread
Connection
C1-30366
Adaptor
NPT 1/4" internal thread - G1/4" external thread
E29-934p
Adaptor
NPT 1/4“ internal thread - UNF 7/16“ external thread
E29-900p
Plug
NPT 1/4“ internal thread
Anchor plate
WEH offers an anchor plate to create a safe, secure attachment for the TW141 and which can be used for all sealing ranges.
Bore, e.g. for safety
chain attachment
Part No.
Description
C1-45285
Anchor plate for TW141
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2 |WEH® Connectors for filling and testing
2.7 |
TW141L
» WEH® Connector TW141L
Description
Hand lever
Features
• Connection in seconds
• No hand tightening required
• For connection onto straight tubes, sealing on the
exterior diameter
• No lateral forces generated on connection
• WEH® Jaw locking mechanism
• Ergonomic design
• High-grade materials
The WEH® TW141L Quick Connector has been developed for difficult to access test pieces. The extended jaws allow connection
to difficult to reach tubes in narrow spaces - heat exchangers are a typical example. The design ensures that disconnection is
not possible whilst still under pressure.
Application
Quick connector for pressure and function testing of straight tubes, as for example leak testing of heat exchangers,
air conditioning components, tube assemblies and automotive fuel systems.
Filling of closed cooling circuits with refrigerants.
TECHNIcal DATa
Characteristic
Basic version
Operating pressure PS
Vacuum up to max. 100 bar
Temperature range
-10 °C up to +80 °C
Leak rate
1 x 10-4 mbar x l/s
Medium
Refrigerants, air, gas, water, oil, etc.
(please indicate when ordering)
Actuation
Manual actuation via hand lever
Material hardness of
test piece
Max. hardness 28 HRC
Connection to copper tubes
Material
Housing: anodized aluminium
Clamping jaw assembly: corrosion-resistant stainless steel
Sealing material
Dependant on medium
Example of use:
Other designs on request
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» WEH® Connector TW141L
Ordering | WEH® TW141L Quick Connector
B1
Ø 28
Ø 24
Ø 33
A
approx. dimensions (mm)
Lmin
15
93
204
Part No.
Sealing range
ØA
Tolerance
Inlet B1
(external thread)
Lmin*
C1-16422
15.0
± 0.1
NPT 1/4“
15
* Lmin: minimum length required for insertion of test piece
Other connector sizes and versions on request.
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2 |WEH® Connectors for filling and testing
2.8 |
TW230
» WEH® Connector TW230
Description
Features
• Connection in seconds
• No hand tightening required
• For connection into straight tubes and bores
• No seal adjustment required
• Wide range of tube tolerances up to ± 0.25 mm
• High-grade materials
The WEH® TW230 Quick Connector is suitable for underwater, pressure decay and helium testing. The connector is equipped
with a safety system that prevents the TW230 from being inadvertently disconnected whilst under pressure. The radial
sealing system works reliably and effectively.
Application
Quick connector for pressure and vacuum testing of straight tubes and bores, as for example underwater, pressure decay
and helium testing, heat exchangers, pressure vessels, valves, transducers, compressors, condensers, evaporation coils,
component and tubing systems, air conditioners, heating systems etc.
TECHNICAL DATA
Characteristic
Basic version
Operating pressure PS
Vacuum up to max. 70 bar
Temperature range
+5 °C up to +80 °C
Leak rate
1 x 10-3 mbar x l/s
Medium
Water, air, for a large variety of refrigerants and oils
(please indicate when ordering)
Surface finish of
test piece
> 0,4 μm - a surface finish of 8 rms may be acceptable
if the test piece has a hardness no greater than 40 HRB
Material hardness of
test piece
Max. hardness 95 HRB
Connection to copper tubes
Material
Clamping jaws: Corrosion-resistant stainless steel, hardened
Housing: Anodized aluminium
Sealing material
Main seal of NBR
Example of use:
Other designs on request
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» WEH® Connector TW230
Ordering | WEH® TW230 Quick Connector – body size 1
approx. dimensions (mm)
178
87.5
Ø 15.8
Ø 22
A
B1
Lmin
Seal set
Sealing range
Ø A ± 0.25
Inlet B1
(internal thread)
Lmin*
(consists of
5 front seals +
1 retaining ring)
9.5 (3/8“)
G1/8“
13.5
B200B-129358
G1/8“
13.5
B200B-129364
10.5
G1/8“
13.5
B200B-129369
1
11.0 (7/16“)
G1/8“
13.5
B200B-129373
1
11.5
G1/8“
13.5
B200B-129376
C1-128750
1
12.0
G1/8“
13.5
B200B-129381
C1-128754
1
12.5
G1/8“
13.5
B200B-129385
C1-128756
1
12.7 (1/2“)
G1/8“
13.5
B200B-129387
C1-128758
1
13.0
G1/8“
13.5
B200B-129389
C1-128763
1
13.5
G1/8“
13.5
B200B-129394
C1-128767
1
14.0
G1/8“
13.5
B200B-129398
Part No.
Body size
C1-128668
1
C1-128734
1
10.0
C1-128432
1
C1-128742
C1-128745
* Lmin: minimum length required for insertion of test piece
When ordering, please state if testing reinforced fibre glass or plastic test pieces.
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2 |WEH® Connectors for filling and testing
» WEH® Connector TW230
Ordering | WEH® TW230 Quick Connector – body size 2
approx. dimensions (mm)
178
87.5
Ø 15.8
Ø 22
A
B1
Lmin
Lmin*
(consists of
5 front seals +
2 retaining rings**)
14.5
G1/8“
16.0
B200B-129401
15.0
G1/8“
16.0
B200B-129405
2
15.5
G1/8“
16.0
B200B-129409
C1-128782
2
15.9 (5/8“)
G1/8“
16.0
B200B-129414
C1-128783
2
16.0
G1/8“
16.0
B200B-129415
C1-128789
2
16.5
G1/8“
16.0
B200B-129421
C1-128792
2
17.0
G1/8“
16.0
B200B-129424
C1-128796
2
17.5
G1/8“
16.0
B200B-129434
C1-128798
2
18.0
G1/8“
16.0
B200B-129436
C1-128802
2
18.5
G1/8“
16.0
B200B-129441
C1-128805
2
19.05 (3/4“)
G1/8“
16.0
B200B-129445
C1-128809
2
19.5
G1/8“
16.0
B200B-129449
C1-128810
2
20.0
G1/8“
16.0
B200B-129450
C1-128813
2
20.5
G1/8“
16.0
B200B-129453
C1-128816
2
21.0
G1/8“
16.0
B200B-129456
C1-128818
2
21.5
G1/8“
16.0
B200B-129458
C1-128820
2
22.0
G1/8“
16.0
B200B-129460
C1-128821
2
22.2 (7/8“)
G1/8“
16.0
B200B-129461
Body size
C1-128770
2
C1-128774
2
C1-128778
Sealing range
Ø A ± 0.25
Seal set
Inlet B1
(internal thread)
Part No.
* Lmin: minimum length required for insertion of test piece
** Seal sets for body size 2 with a sealing range < 15.9 mm contain only 1 retaining ring
Additional sizes are available up to sealing range 40.0 mm.
When ordering, please state if testing reinforced fibre glass or plastic test pieces.
The TW230 quick connector is available in 0.5 mm steps starting from 9.5 mm up to 40.0 mm as well as all standard imperial
sizes. Please contact us!
Other connector sizes and versions on request.
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» WEH® Connector TW230
ACCESSORIES
The following accessories are available for WEH® TW230:
Screw plug
If the WEH® Connector is to be used as a plug, the media inlet ‘B1’ will be sealed with a screw plug of brass (low pressure range) or
alternatively stainless steel (high pressure range). It is recommended that the media compatibility of the seal be tested by the customer!
Low pressure
High pressure
Part No.
Description
Thread
(external thread)
Pressure range
E69-9200
Screw plug (low pressure)
G1/8“
0 - 50 bar
W9329
Screw plug (high pressure)
G1/8“
50 - 350 bar
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2 |WEH® Connectors for filling and testing
2.9 |
TW241
» WEH® Connector TW241
Description
Features
• Connections in seconds
• No hand tightening
• For connection onto straight tubes
• WEH® Jaw locking mechanism
• No seal adjustment required
• Wide range of tube tolerances up to ± 0.25 mm
• High-grade materials
The WEH® TW241 Quick Connector enables quick and easy leak testing of straight tubes with an outer diameter of 6.0 to 22.2
mm. The connector is available in three body sizes and is suitable for underwater, pressure decay and vacuum testing with
helium.
WEH® TW241 seals exterior diameters of straight tubes within seconds and bridges large tube tolerances of up to
± 0.25 mm with no operational adjustment of seals.
The WEH® Jaw locking mechanism provides maximum grip with minimum distortion of the test piece. There is no need for
additional fixing. Operation is amazingly easy. Plug the WEH® Connector onto the tube, actuate the hand lever by 90° and the
pressure tight connection is made.
The WEH® TW241 is easy to maintain and ideal for testing copper tubes used in the refrigerating and air conditioning
industry.
Application
Quick connector for pressure and vacuum testing of straight tubes, as for example underwater, pressure decay and helium
testing, heat exchangers, pressure vessels, valves, transducers, compressors, condensers, evaporation coils, component and
tubing systems, air conditioners, heating systems etc.
TECHNIcal DATa
Characteristic
Basic version
Operating pressure PS
Vacuum up to max. 70 bar
Temperature range
+5 °C up to +80 °C
Leak rate
1 x 10-3 mbar x l/s
Medium
Water, air, for a large variety of refrigerants and oils
(please indicate when ordering)
Surface finish of
test piece
> 0,127 μm - surfaces less than 0.127 μm are not
recommended
Material hardness of
test piece
Max. hardness 28 HRC
Connection to copper tubes
Material
Clamping jaws: Corrosion-resistant stainless steel
Housing: Anodized aluminium
Sealing material
Main seal of chloroprene
Example of use:
Other designs on request
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» WEH® Connector TW241
Ordering | WEH® TW241 Quick Connector – body size 1
approx. dimensions (mm)
158.5
83.5
B1
Ø 24
Ø 28.8
A
°
90
25
90
°
Lmin
Lmin*
(consists of
5 front seals)
6.0
G1/8“
26.5
B200B-130704
1
6.35 (1/4“)
G1/8“
26.5
B200B-130705
1
7.9 (5/16“)
G1/8“
26.5
B200B-130713
C1-130655
1
8.0
G1/8“
26.5
B200B-130714
C1-130661
1
9.5 (3/8“)
G1/8“
26.5
B200B-130720
C1-130663
1
G1/8“
26.5
B200B-130722
Body size
C1-130646
1
C1-130647
C1-130654
Sealing range
Ø A ± 0.25
Seal set
Inlet B1
(internal thread)
Part No.
10.0
* Lmin: minimum length required for insertion of test piece
When ordering, please state if testing reinforced fibre glass or plastic test pieces.
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2 |WEH® Connectors for filling and testing
» WEH® Connector TW241
Ordering | WEH® TW241 Quick Connector – body size 2
approx. dimensions (mm)
165
90
B1
Ø 35
Ø 42
A
°
90
25
90
°
Lmin
Lmin*
(consists of
5 front seals)
12.0
G1/4“
26.5
B200B-130732
2
12.7 (1/2“)
G1/4“
26.5
B200B-130734
2
15.9 (5/8“)
G1/4“
26.5
B200B-130745
2
16.0
G1/4“
26.5
B200B-130746
Body size
C1-130672
2
C1-130674
C1-130685
C1-130686
Sealing range
Ø A ± 0.25
Seal set
Inlet B1
(internal thread)
Part No.
* Lmin: minimum length required for insertion of test piece
When ordering, please state if testing reinforced fibre glass or plastic test pieces.
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» WEH® Connector TW241
Ordering | WEH® TW241 Quick Connector – body size 3
approx. dimensions (mm)
174.5
99.5
Ø 46
Ø 53
°
A
B1
90
34
90
°
Lmin
Seal set
Part No.
Body size
Sealing range
Ø A ± 0.25
Inlet B1
(internal thread)
Lmin*
(consists of
5 front seals)
C1-130691
3
19.05 (3/4“)
G1/4“
26.5
B200B-130752
C1-130695
3
22.2 (7/8“)
G1/4“
26.5
B200B-130756
* Lmin: minimum length required for insertion of test piece
When ordering, please state if testing reinforced fibre glass or plastic test pieces.
Other connector sizes and versions on request.
ACCESSORIES
The following accessories are available for WEH® TW241:
Screw plug
If the WEH® Connector is to be used as a plug, the media inlet ‘B1’ will be sealed with a screw plug of brass (low pressure range) or
alternatively stainless steel (high pressure range). It is recommended that the media compatibility of the seal be tested by the customer!
Low pressure
High pressure
Part No.
Description
Thread
(external thread)
Pressure range
E69-9200
Screw plug (low pressure)
G1/8“
0 - 50 bar
E69-9210
Screw plug (low pressure)
G1/4“
0 - 50 bar
W9329
Screw plug (high pressure)
G1/8“
50 - 350 bar
W9330
Screw plug (high pressure)
G1/4“
50 - 350 bar
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2 |WEH® Connectors for filling and testing
2.10 | TW920
» WEH® Connector TW920
Description
Operating loop
Features
• For cylinder valves with external thread and
residual pressure valve
• Connection in seconds
• No hand tightening required
• Simplifies the connecting and filling procedure
• Suitable for right or left handed operation
• Pin within the valve is actuated automatically
• RPV is not removed from the valve so it can be used again
• WEH® Jaw locking mechanism
The WEH® TW920 Quick Connector for filling refrigerants overcomes the need to remove the cylinder valve cartridge when
filling. The innovative gripper mechanism pulls the valve cartridge pin forward whilst simultaneously providing virtually
instant connection to the cylinder valve thread.
The TW920 is equipped with an operating loop.
WEH® TW920 with pneumatic linear valve
As an option the TW920 quick connector is available with an integrated pneumatic linear valve with a sliding sleeve valve for
the pilot pressure port P1 and a venting port P2. In order to vent back the residual gas, a venting line can also be fitted.
Application
Quick connector for filling of cylinders with external thread and residual pressure valve with refrigerants.
TECHNICAL DATA
Characteristic
Basic version
Operating pressure PS
Max. 40 bar
Pilot pressure
Max. 6 - 8 bar (for opening residual pressure valve)
Temperature range
-10 °C up to +80 °C
Connection A
W21.8x1/14”
for cylinder valve with pin
Medium
Refrigerants (please indicate when ordering)
Actuation
Manual actuation via operating loop
(loop depending on type of cylinder valve)
Material
Brass, corrosion-resistant stainless steel;
protection sleeve (linar valve) in POM
Sealing material
Dependant on medium
Example of use:
Other designs on request
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» WEH® Connector TW920
Ordering | WEH® TW920 Quick Connector – standard version
approx. dimensions (mm)
195
108
41
Ø 40
Ø 45
108
A
Ø 35
84
13
B1
Part No.
Description
Connection A
(external thread)
Inlet B1
(external thread)
C1-77826
TW920
W21.8x1/14”
NPT 3/8”
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2 |WEH® Connectors for filling and testing
» WEH® Connector TW920
Ordering | WEH® TW920 Quick Connector with pneumatic linear valve
A
37
124.5
Ø 50
P1 = M5
B1
247.5
P2 = M5
approx. dimensions (mm)
Ø 40
108
Ø 45
108
Part No.
Description
Connection A
(external thread)
Inlet B1
(internal thread)
C1-48037
TW920 incl. linear valve
W21.8x1/14”
G1/4”
Other connector sizes and versions on request.
Accessories
The following accessories are available for WEH® TW920:
Actuations
For the TW920 various actuations, e.g. loops, wire ropes etc. are available in different sizes and forms. Please contact us!
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» Other products
Other products of WEH Precision Connectors
Catalogue No. 35 - Connector Solutions for industrial applications:
WEH® Connectors for pressure-tight connections in seconds to threads, beads, tubes, etc.
Catalogue No. 20 - Connection solutions for the gas industry:
WEH® Connectors for pressure-tight connections in seconds for gaseous applications
Catalogue No. 45 - Check Valves:
High performance check valves for liquid and gaseous media
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3 |Further information
3.1 |
Technical appendix
» Technical appendix
Definitions
Abbreviation
Definition
Pressure specifications
PN
Nominal pressure
Nominal pressure after temperature compensation at 15 °C
Maximum permissible operating pressure at 15 °C and normal conditions.
Max. operating
pressure
PS
The values mentioned in this catalogue have been measured at a temperature of 15°C.
Note: At higher operating temperatures the permissible operating pressure has to be
reduced accordingly to compensate for the effect of heat weakening component materials.
Example values see table:
Technical notes  Pressure - temperature - compensation
The admissible operating pressure has been determined as follows:
100,000 x cycles impacting the component with 125 % of PN
The pressure wave is sinusoidal.
The test is performed at a room temperature of approx. 20 °C.
PT
Test pressure
Test pressure to which the component is tested for structural integrity during
acceptance testing (normally PS x 1.43 up to 1.5)
Dimensions
L1, L2, L3 ...
Length specification
D1, D2, D3 ...
Diameter specification
Ports
A
Customer-specific port
B1, B2, B3, ...
Media ports
P1, P2, P3 ...
Compressed air ports
Others
DN
Nominal bore
Technical notes
Term
Definition
Temperature range
The temperature ranges stated cover most common applications. The seal material used has higher or lower
temperature limits dependant on material
(e.g. NBR -30 °C up to +100 °C, FKM -20 °C up to +200 °C, EPDM -40 °C up to +150 °C).
Under such extreme temperature conditions the suitability of WEH® Products to the application has to be
checked specifically. If necessary, we can develop special solutions.
Pressure temperature compensation
For higher temperatures the max. operating pressure needs to be reduced dependant on the application.
Possible values therefore are: 50 °C - 5 %, 100 °C - 10 %, 150 °C - 20 %.
In case of doubt, please contact us! When using certain materials, for example plastics, the valves need to be
further derated.
Suitability for
application
When selecting a component, the total system design must be considered to ensure safe, trouble free
performance. The correct selection of a component, material, temperature, pressure range as well as proper
installation, operation and maintenance are the responsibility of the customer.
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3.2 |
Brochure data
» Brochure data
Maximum care has been taken compiling this catalogue based on many years of experience.
However we must point out, that all catalogue data is only valid, if it was expressly confirmed in the individual order. We
cannot guarantee the veracity of the data and the introductions in individual cases due to the large variety of applications
for WEH® Products, and the unknown parameters and conditions of use. We have to refer to the individual order.
The limits of use for pressure, temperature etc. in this catalogue are theoretical data calculated on the basis of tests.
Because of different operating conditions we cannot guarantee that the data do accord with the special use of the client.
It has to be considered, that in the practical use interactive interferences of data parameters can cause the change of the
maximum values. Especially if the operating conditions are extreme, the WEH company must be consulted before the use
of the products. Therefore the requested values should be stated in the individual order, especially for extreme operating
conditions.
Furthermore we point out, that we cannot guarantee for misprints, uncompleted data or misinterpretation. The illustration
of the products is for demonstration only. The exact form and design of the product is only defined by the individual order.
The brochure is only an integral part of the contract, if it is agreed expressly. Dimensions and other technical data in this
catalogue are without obligation.
By the transfer of an up to date brochure or document all precursory versions will run out of validity. As a matter of principle
the latest up to date version of brochures and other documents are valid. These versions can be inquired by the WEH company.
Our general terms and conditions and the agreement on protection of know-how and quality assurance are valid for consignments and all other services, unless otherwise agreed. We do not accept general terms and conditions of the purchaser.
| www.weh.com
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» Design and production
» Distributor Netherlands
Address: WEH GmbH Precision Connectors
Josef-Henle-Str. 1
89257 Illertissen / Germany
Address: Teesing bv
Verrijn Stuartlaan 40
2288 EL Rijswijk / The Netherlands
Internet: www.weh.com
Email:[email protected]
Phone: +49 7303 9609-0
Fax: +49 7303 9609-9999
Internet: www.teesing.com
eMail:[email protected]
Phone: +31 70 413 07 50
Fax: +31 70 413 07 30
For queries and further information, please do not hesitate to contact us.
Cat. 40 | D-2010/07/00351-4-3