Refining facilities for the refinement and concentration of raw materials extracted, in particular crude oil, but also sugar, salt and metals such as copper and lead, work continuously and are of great relevance to downstream industry sectors and public supply systems. Therefore, a reliable operational performance under continuous maximum load is the key criterion which must be met by system elements used. RINGFEDER^® solutions, always adapted to the specific requirements posed by the respective application, mainly highly torsionally flexible couplings with the ability of compensating for misalignments as well as torsionally rigid steel disc couplings and gear couplings of the TNR, TND and TNZ series are ideally suited to be used in the drives of powerful pumps, compressors and other machines from the field of refining technology. They are characterised by an extreme maintenance and installation friendliness and by an excellent durability and reliable performance. This is why they support users all around the globe in achieving the greatest possible operational reliability and fail-safe performance and make a major contribution to significantly reducing installation costs and operating costs. Depending on the specific requirements, our products of course also comply with applicable industrial standards like ATEX and API.