WEH® Connectors for Refrigeration and air conditioning
1 / 46Pages

2025 | Catalog | Connection solutions refrigeration and air conditioning WEH HVAC-R Connectors for filling, evacuating and testing of refrigeration and air conditioning components YEARS Quality & Safety WEH® - We Engineer Hightech

© All rights reserved, WEH GmbH Verbindungstechnik. Any unauthorized copying, distribution or other use of the copyrighted content is strictly forbidden without the written consent of WEH GmbH Verbindungstechnik. Upon transmission of a newer version of this document, all previous versions are no longer valid. In principle, the latest version of the document is valid. This can be found at www.weh.com. Our General Terms and Conditions and the Agreement on Protection of Know-How and Quality Assurance (www.weh.com) shall apply to deliveries and other services, unless expressly agreed otherwise....

WEH® Connectors for filling and evacuating8 2.1 |

1 | Refrigeration and air conditioning industry Introduction WEH® HVAC-R Connectors simplify workflows and reduce costs WEH offers a complete product range of advanced quick connectors that make connection to fluid lines easier, more reliable and with high integrity sealing. The cost savings during production and servicing refrigerating and air conditioning systems resulting from easy, fast connection can be considerable. WEH has a suitable filling or testing connector for almost any application whether for refrigerant filling of refrigerators, ice machines, air conditioning systems, water...

Introduction WEH® Quick connectors for filling and evacuating refrigerants Indispensable tools for refrigerant filling The typical practice when filling and maintaining refrigeration and air conditioning systems is to use screw connectors. When disconnecting these screw connectors, the residual refrigerant in filling hoses escapes into the atmosphere causing considerable environmental damage. Escaping refrigerants also present a risk of injury to operators and can cause painful frost burns to the hands. Manual screwing and unscrewing is not only time and cost-consuming, but is also very...

1 | Refrigeration and air conditioning industry Overview Overview of WEH® Connectors Many connection and application possibilities CONNECTION POSSIBILITIES Male threads Straight tubes (outer Ø) Straight tubes (inner Ø) FILLING AND EVACUATING OF REFRIGERANTS Type Filling and evacuating of industrial refrigerating and air conditioning systems Filling and evacuating of automotive air conditioning systems during production Filling and evacuating of automotive air conditioning systems during maintenance Filling of gas cylinders with / without residual pressure valve Filling of gas cylinders with...

Overview TESTING OF TUBE CONNECTIONS Type O-ring sealing Special sealing O-ring sealing Special sealing Sealing range Max. allowable operating pressure PS Seals Nominal bore (DN) TW111 | For filling and evacuating of industrial refrigerating and air conditioning systems TW110 | For filling and evacuating of automotive air conditioning systems during production TW141 | For testing of cooling circuits ORDERING Normally we need the following information when ordering: 1. 2. 3. 4. Part no. Pressure range Medium / leak rate Description of application Temperature range Space requirement...

2 | WEH® Connectors for filling and evacuating WEH® Connector TW111 DESCRIPTION Features • For connection to Schrader valves • No frostbitten or burned hands • 99 % less refrigerant loss • Connection in seconds • No hand tightening required • WEH® Jaw locking mechanism • Reduces connection times and costs • Different versions available • High-grade materials The WEH® TW111 Quick connector is the ideal tool for filling and evacuating refrigerants when servicing refrigerating and air conditioning systems with Schrader valve (1/4“ resp. 5/16“ SAE tube connection). An integrated and...

WEH® Connector TW111 ORDERING | WEH® TW111 Quick connector with inline media inlet approx. dimensions (mm) L1 ORDERING | WEH® TW111 Quick connector with 90° media inlet approx. dimensions (mm) L1 B1

2 | WEH® Connectors for filling and evacuating WEH® Connector TW111 ORDERING | WEH® TW111 Quick connector with inline media inlet, for R410A refrigerant approx. dimensions (mm) L1 Other connector sizes and versions on request. Required information for ordering see page 7. SPARE PARTS Various parts are available as spares for the WEH® TW111 Quick connector. Part No. Front seal When ordering the front seal, please indicate the part no. engraved on the connector.

CONTENT WEH® TW111 - Set 1 Part no.: C1-161409 Quick connector TW111 with inline media inlet - high pressure (red) - low pressure (blue) Quick connector TW111 with 90° media inlet - high pressure (red) - low pressure (blue) Front seal set (includes 5 front seals) Front seal set (includes 5 front seals) O-ring picker O-ring picker

2 | WEH® Connectors for filling and evacua- WEH® Connector TW110 DESCRIPTION Features • Connection in seconds • No hand tightening required • WEH® Jaw locking mechanism • Reduces connection times and costs • High-grade materials The WEH® TW110 Quick connector is specifically designed for filling and evacuating refrigerants, as for example R134A, of automotive air conditioning equipment acc. to SAE J639. The quick connector is rated for a max. operating pressure of 35 bar and is completely made of stainless steel. Therefore, the connector is ideally suited for continuous operation. The TW110...

WEH® Connector TW110 ORDERING | WEH® TW110 Quick connector approx. dimensions (mm) L1 L2 * Lx: the connection depth of each customer’s receptacle valve may vary. Therefore a sample or dimensioned drawing is needed for each order. ** acc. to SAE J639 Other connector sizes and versions on request. Required information for ordering see page 7. SPARE PARTS Various parts are available as spares for the WEH® TW110 Quick connector. Part No. Front seal When ordering the front seal, please indicate the part no. engraved on the connector.