Energy efficiency and compact design play a major role in thermal management applications. As a result of the low pressure drop of Parker coupling systems, energy saving is taken into account at the same time as optimal performance. The reduced size of Parker couplings allows their use in the most confined spaces. The flat-sealing valve design reliably prevents any fluid loss and air inclusion during the coupling and uncoupling process, thereby protecting the sensitive electronics and all electrical connections. For switchboards, Parker developed a special coupling system (RNS series), which makes coupling and locking the cooling circuits on the racks considerably easier. Highly resistant materials and surface finishes equip the couplings for use under high mechanical loads.