Lüdecke - Main Catalogue Page 67
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Two-Hand Operation The breathing air quick connect couplings series ESI1A and ESI2A DN 7.4 guarantee special safety aspects due to their extraordinary design. This allows them to be used in extreme situations (e.g. for respiratory masks of firefighters). Both systems can only be combined under certain conditions. Furthermore, the two-hand operation ensures high safety when disconnecting coupling and plug. In this way, they provide reliable protection against accidental decoupling. One-hand operation: To connect push the plug into the coupling. Two-hand operation: To disconnect, push the plug while pulling back the sleeve Visual Identification The series ESMK DN 5 and ESIFK DN 7.8 allow for easy identification of different media circuits and prevent false coupling. This is due to coloured anodized knurled aluminium sleeves on the coupling as well as coloured anodized aluminium rings on the plug and various codes at the coupling and plug. wrong colour and coding! Coupling is not possible. One-hand operation: To connect, push the plug into the coupling. (The colours of the aluminium sleeve of the coupling and the aluminium ring of the plug as well as the plug-coding have to be identical.) To disconnect, pull back the coupling sleeve. 67
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