2026 | 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

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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 coolers...

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 laborious....

1 | Refrigeration and air conditioning industry CONNECTION POSSIBILITIES Type FILLING AND EVACUATING OF REFRIGERANTS Type

TESTING OF TUBE CONNECTIONS Normally we need the following information when ordering: 1. Part no. 5. Temperature range 2. Pressure range 6. Space requirement (interference contours, clearance, etc.) 3. Medium / leak rate 7. CAD drawing of customer test piece with tolerances 4. Description of application 8. Test piece For reasons of precaution, we‘d like to point out that a) regarding the delivery of each article acc. to the respective order confirmation - in particular concerning ECE / EC79 articles - WEH does not confirm the fulfilment of additional requirements of the concerned end customer,...

2 | WEH® Connectors for filling and evacuating • For connection to Schrader valves • No frostbitten or burned hands • 99 % less refrigerant loss • 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 flow-optimized shut-off valve minimizes the escape of refrigerant into the atmosphere,...

2 | WEH® Connectors for filling and evacuating When ordering the front seal, please indicate the part no. engraved on the connector.

2 | WEH® Connectors for filling and evacuating • 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 quick connector is equipped with an integrated and flow-optimized...

* Lx: the connection depth of each customer's receptacle valve may vary. Therefore a sample or dimensioned drawing is needed for each order. When ordering the front seal, please indicate the part no. engraved on the connector.

2 | WEH® Connectors for filling and evacuating • No hand tightening required • WEH® Jaw locking mechanism • Reduces connection times and costs • Versions for high or low pressure connection ports available • High-grade materials The WEH® TW108 Quick connector is a good reasonably priced alternative to the WEH® TW110 for filling and evacuating refrigerants, as for example R134A, especially during maintenance of automotive air conditioning equipment acc. to SAE J639. The connector is the ideal choice for leak-tight connections during maintenance work, continuous operation not requiring. The TW108...

* Lx: the connection depth of each customer's receptacle valve may vary. Therefore a sample or dimensioned drawing is needed for each order. When ordering the front seal, please indicate the part no. engraved on the connector.

2 | WEH® Connectors for filling and evacuating • Suitable for filling of CO2 or refrigerants • Version for residual pressure valves or non-residual pressure valves available • 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 refrigerants or gaseous and liquid CO2. Connection to the cylinder is made within seconds without tedious screwing...

2 | WEH® Connectors for filling and evacuating Other connector sizes and versions on request. Required information for ordering see page 7.