Safe separation of different media to prevent cross-contaminationTwo independently working valve shafts together with the leakage chamber ensure 100% safe separation of incompatible fluids.Self-draining valve housing being fitted with clearly marked profile sealsFully balanced safeguarding operation even in case of water hammers100% cleaning of leakage area neutral area between housing and shaft is cleaned by built-in spray nozzleSimple maintenance through compact design and identical sealsEHEDG certifiedATEX compliant models