Combined Bleeding and Venting Valves, Valve with Integrated Vacuum BreakerEB 1.57, for plants subject to severe vacuum hazards and systems particularly requiring ventilation | float and lever ensure the discharge of large gas quantities for constant ventilation at maximum operating pressure | the adjustable vacuum breaker with large nominal diameter ensures maximum ventilation performance during draining of systems and means optimal dual functionality | completely made of CrNiMo steel (316L) – deep-drawn body with excellent surface quality | easy-to-maintain owing to the clamp system | corrosion-resistant, very lightweight and compact