VULKAN LOKRING Rohrverbindungen GmbH & Co. KG

THE LOKRING SINGLE RING TECHNOLOGY is a method for connecting metallic refrigerant lines without brazing so that they are permanent and hermetically sealed. For this purpose, VULKAN Lokring constructs customised LOKRING tube connections for any application based on the tube materials, dimensions and tolerances and the associated assembly tools. The primary area of application is the manufacture of the refrigerant circuit in the series production of refrigerators and freezers. There are other applications for the manufacture of evaporators for automotive air-conditioning systems, for heat exchangers in refrigeration and air-conditioning technology (e.g. manufacture of heat pumps) or with the serial installation of refrigeration and air-conditioning technology (e.g. air-conditioning for buses). Whether it is a matter of optimising costs, improving quality or solving a problem – LOKRING SINGLE RING is the answer!

THE PATENTED LOKRING® TUBE CONNECTION SYSTEM PROVIDES AN INNOVATIVE SYSTEM OF SOLDER-FREE TUBE CONNECTIONS FOR EVERY INSTALLATION SITUATION IN REFRIGERATION AND AIR-CONDITIONING TECHNOLOGY.

LOKRING tube connections can be made without a great deal of force being necessary, using simple hand assembly tools. LOKRING ensures an absolutely clean, permanent and purely mechanical tube connection with long-term hermetic air-tightness. This is confirmed by the special TÜV test and approval. All this makes LOKRING tube connections one of the most economical and reliable methods of connecting refrigerant tubes.

THE BENEFITS

• Approx. 40% time saving
• Absolutely clean, efficient and reliable
• Installation work during business hours and public access
• Installation work in situations where there is a fire hazard
• Light hand assembly tool without energy exertion
• Installation can also be carried out by non-skilled workers
• No nitrogen as purge gas
• No solder-related quality problems

AREAS OF APPLICATION

• Air conditioning systems (split, multi-split, VRV, HVAC)
• Commercial product refrigeration
• Heat pumps
• Solar thermal energy
• Geothermal energy

THE PATENTED LOKRING® TUBE CONNECTION SYSTEM PROVIDES AN INNOVATIVE SYSTEM OF SOLDER-FREE TUBE CONNECTIONS FOR EVERY REPAIR SITUATION IN REFRIGERATION APPLIANCES.

LOKRING tube connections can be made without a great deal of force being necessary, using simple hand assembly tools. LOKRING ensures an absolutely clean, permanent and purely mechanical tube connection with long-term hermetic gas-tightness. This is confirmed by the special TÜV test and approval. All this makes LOKRING tube connections one of the most economical and reliable methods of connecting refrigerant tubes.

THE BENEFITS

• Also suitable for flammable refrigerants
• Customer-friendly onsite service
• Absolutely clean, efficient and reliable
• Repair work during business hours and public access
• Repair work in situations where there is a fire hazard
• Light hand assembly tool without energy exertion
• No solder-related quality problems

AREAS OF APPLICATION

• Household refrigeration appliances
  (refrigerators, freezers, wine coolers)
• Ready-to-use refrigeration equipment
  (refrigeration cabinets, bars, lockers, chillers)
• Refrigeration equipment for catering

(sales counter refrigerators, flow-through coolers, portable cooling systems)

LOKRING® & LOKCLIP

THE PATENTED LOKRING® TUBE CONNECTION SYSTEM PROVIDES AN INNOVATIVE SYSTEM OF SOLDER-FREE TUBE CONNECTIONS FOR EVERY REPAIR SITUATION IN VEHICLE AIR CONDITIONING SYSTEMS.

LOKRING tube connections can be made without a great deal of force being necessary, using simple hand assembly tools. LOKRING ensures an absolutely clean, permanent and purely mechanical tube connection with long-term hermetic air-tightness. This is confirmed by the special TÜV test and approval. All this makes LOKRING tube connections one of the most economical and reliable methods of connecting refrigerant tubes.

THE BENEFITS

• For universal use, independent of the vehicle type and model year
• No waiting for expensive original spare parts
• No welding, soldering or thread cutting necessary
• In many cases, the faulty line may not even have to be removed
• For more than 30 years tried-and-trusted by OEMs
• In compliance with EU directive 2006/40/EG

FIND THE LEAK!

THE LEAK DETECTION TECHNOLOGY DEVELOPED FOR THE INDUSTRY IS PERFECTLY TAILORED TO SERVICING APPLICATIONS, AND THEREFORE GUARANTEES LEGALLY COMPLIANT, FAST, RELIABLE AND SIMPLE LEAK DETECTION.

FOR LEAK DETECTION, the empty air conditioning system is charged with forming gas 95/5 consisting of 95 percent nitrogen and 5 percent hydrogen. Forming gas 95/5 is non-flammable, non-toxic, non-corrosive and not harmful to the environment. Hydrogen molecules have the smallest atomic mass of all the elements and can escape due to even the smallest leak. With the aid of hydrogen leak detectors LOKTRACER TLD.500 and LOKTRACER TLD.1000, very small leakages can therefore be detected. The leak detectors react almost exclusively to hydrogen. There are therefore hardly any cross sensitivities.