Machines, namely machines for the chemical industry, machines for the food industry, machines for the beverage industry, machines for the pharmaceutical industry, filling machines, machines for handling in the industrial production of and, in particular, for the discharging of pulverized and/or liquid substances; valves as parts of machines, in particular flow-control valves, metering valves, shut-off valves, outlet valves, stop slide valves, valves for the transport of bulk materials and liquid goods in the food industry, pharmaceutical industry and chemical industry, valve systems combined from the valves listed above; parts and components of the aforementioned goods