LOKRING connectors
 and tools are made by VULKAN LOKRING in-house: Development, construction, manufacture as well as sales & service. For the customers, this means „all from a single source“ and directly from the manufacturer: customised planning and consultancy, supervision at the time of introduction, and support and service locally wherever required.

RESEARCH AND DEVELOPMENT. VULKAN LOKRING is the inventor and developer of the patented LOKRING tube joint. For the last 33 years, experienced engineers have built new solutions for customers‘ applications in the development centre in Germany.

PRODUCTION. Approximately 500,000 LOKRING connectors per day are produced on modern CNC multi-spindle automatic machines in Germany, Brazil, India, USA and China. Therefore, for customers, LOKRING is the optimal partner when it comes to safety, flexibility and logistics.  

QUALITY. The German standard of quality management is the benchmark for the international production of LOKRING. The certified quality management and the deployment of highly advanced industrial image processing systems facilitate 100% quality control.

SERVICE. Whether you are seeking planning and consultancy for optimising the refrigeration cycle system by using solder-free tube connections, support with the introduction of the LOKRING technology 
in production or after-sales service – everything is available locally with competent VULKAN LOKRING technicians.

 6,600 customers with 650 customised or standard LOKRING applications at present. 69 internationally active patents. 33 years of experience in development and construction.


 TÜV and UL product certification. ISO 9001 certification of the quality management system. ISO 14001 certification of the environment management system. AEO certification. Leak-proof tests. Expert survey reports.