Efficient Testing, Safe Filling – WEH® Quick Connectors for Refrigeration and Air Conditioning Technology

Whether cooling systems, heat pumps, or air conditioning units – in refrigeration and air conditioning technology, maximum precision is essential when filling, evacuating, and testing. Manufacturers and service technicians are under pressure to meet stricter environmental regulations while working more efficiently – all amid increasing product variety and complex connection geometries.

WEH® Quick Connection solutions provide relief precisely where it’s needed: enabling pressure-tight connections in seconds on Schrader valves, straight tubes, threads, or bores – without screwing, without refrigerant loss. Ideal for use in manufacturing, service, and development. From refrigerant filling to leak testing, WEH® delivers proven solutions for refrigeration and air conditioning technology – ergonomic, cost-effective, and certified “Made in Germany.”

Common applications

Pressure and Leak Testing in Refrigeration and Air Conditioning Technology

Components must be reliably tested for leak-tightness – often under vacuum or compressed air. WEH® Connectors ensure instant connection and secure testing processes.

Refrigerant filling

Whether air conditioner, refrigerator, or heat pump – refrigerant filling must be fast, leak-tight, and loss-free. WEH® Quick Connectors make this possible – completely without screwing.

Evacuating the refrigerant circuit

Before filling, cooling systems are evacuated to remove moisture and air. WEH® Connectors simplify this step with safe, time-saving handling – for maximum efficiency.

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WEH<sup>®</sup> Service Connectors – The Clean Solution for Maintenance & Service

For years, our connectors have been a trusted standard in service applications – and for good reason: Conventional screw-type connectors often release significant amounts of refrigerant when disconnected, posing risks to both the environment and the operator. With the WEH® Service Connector, the connection to beaded tube lines is made in seconds – leak-free and without risk of injury.

✔ Prevents refrigerant loss
✔ Protects against cold burns on hands
✔ Saves time, reduces costs – ideal for daily service use

WEH® Quick Connectors for Testing – Leak Testing Without Screwing

Whether straight tube or bore – WEH® Test Connectors enable fast pressure and vacuum tests on HVAC components without manual screwing. Ideal for heat exchangers, evaporators, pressure vessels, and more.

✔ Instant connection to straight tubes & bores
✔ For pressure tests up to 100 bar
✔ Shorten test times, increase productivity

WEH<sup>®</sup> Quick Connectors for Filling – Efficient Filling of Gaseous Media

Whether with or without residual pressure valve – WEH® filling connectors allow quick and safe filling of cylinder valves with external threads, completely without screwing. The connector seals pressure-tight in seconds, enhances workplace safety, and minimizes refrigerant loss.

✔ Tool-free connection
✔ For gaseous media
✔ High process reliability & operator protection during filling operations

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Why WEH?

Quality You Can Rely On

Our products are manufactured to the highest standards. At WEH, quality is no coincidence – it’s our standard, ensured by 100% final inspection and certified processes.

Service You Can Rely On

By choosing a WEH® product, you’ve chosen long-lasting quality. And our service ensures it stays that way. Whether maintenance, inspection, repair, or original spare parts – our experienced team is committed to maximum safety, efficiency, and preserving the value of your equipment.

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