There is provided a valve element for a condensate trap comprising an expansion chamber in the form of a metallic bellows having a variable axial length and having first and second ends sealed with first and second end caps respectively. For each storage provider of a set of storage providers, a service-provider database stores a metric characterizing a property of a service provided by the service provider. A threaded bore leads in the first longitudinal crosspiece to the blind bore, starting from a side face. The ceiling wall has an escaping portion for receiving the latch and is engaged with the peripheral edge of the escaping portion.