Valve assembly with a primary and secondary seat valve and valve device with such a valve assembly

摘要

The arrangement has two seat valves i.e. plate valves, including valve seats (24, 25) and valve closure bodies (21, 22). The bodies are held in a preset position by spring force applied by a common spring (23) e.g. pressure spring. The preset position corresponds to an opened or closed position of the seat valves. The spring has two ends that act on the respective bodies. Longitudinal axes of the bodies are aligning with respect to each other. A longitudinal axis of the spring and the longitudinal axes of the bodies are aligning with respect to each other.