The series of vent valves 1940/1945 and 1960/1965 can now cover even more applications. The two series have been modified so that they can now also be used in steam applications.
In addition, the primary seals were adapted and now consist only of PTFE seal material. This seal has a generally extremely high chemical resistance. The temperature range is -200 °C to +225 °C, depending on the stress.