Always a big step ahead with adapters from Dürr Somac
Stollberg, May 2015 – Since the new EU regulation on refrigerants for automotive air-conditioning systems entered into force, the new refrigerant R1234yf has increasingly been deployed in Europe. This refrigerant has a substantially lower GWP factor (Global Warming Potential) and thus is more environmentally compatible than the legacy refrigerant R134a which, being a greenhouse gas, contributes to global warming. Accordingly, from January 1, 2017, R134a may no longer be used in new vehicles in Europe.
As both refrigerants are currently still being deployed, both refrigerants need to be filled on one assembly line. Based on the new filling adapter generation G³Blue, Dürr Somac has developed a new adapter that can be used for filling both R134a and R1234yf – the G³Blue Twin A/C. By selecting the type on the filling equipment, this adapter is set to the vehicle valve for the relevant refrigerant. A measuring system monitors the adaption and will discontinue the filling process in the event of a “failed adaption”.
Not only will be fewer adapters in use from now on; the number of filling consoles has also been reduced from two to one: the Dürr Somac R1234yf safety concept allows both refrigerants to be combined in a single console. This is not possible without encountering difficulties as R1234yf is classified as an easily combustible gas, with appropriate explosion protection rules and regulations having to be observed. Legislation provides for various optional solutions in this context.
“We have opted for a route with which we can classify the system as ‘permanently tight in technical terms’. In combination with additional protective measures, the ex-protection zone in the filling console has been eliminated. This enables us to install the components for both refrigerants in a shared console, the Twin A/C system“, explains Carsten Wöhner, Sales Head of Dürr Somac, the biggest competitive advantage over other suppliers. They will need to continue operating with an ex-protection zone and, therefore, with two consoles.
The consolidation of the adapters and consoles reduces the level of complexity for the operator of the facility, streamlines the entire filling equipment and lowers investment costs. The added space gained also improves access to the facilities that use other media such as brake fluid or refrigerants for filling.
The combined refrigerant filling adapter Twin A/C will be supplied from the second quarter of 2015. The G³Blue Twin A/C will also be offered as a retrofit package for existing refrigerant filling facilities.