PERC Powered Emergency Release Coupling PERC (Powered Emergency Release Coupling), uses the well proven technology from breaking pin design breakaways. These couplings provide 100-percent shut-off of the valves in each half of the PERC and the ability to actively and remotely release the coupling automatically without strain on the transfer system or manifolds. The activated release of the coupling is achieved by injecting high pressure nitrogen into a dedicated chamber isolated from the transferred media in the coupling body resulting in instantaneous release of the PERC. The PERC is designed to be both lightweight and compact. It is designed with redundancy.