Valve manifolds are recommended for the connection of pressure transmitters, differential pressure transmitters, pressure gauges and differential pressure gauges to the technological process. One differentiates between 3-valve and 5-valve manifolds: 3-valve manifolds are composed of two shut-off valves and one pressure compensating valve. The shut-off valves have the task of isolating the process from the differential pressure measuring instrument, while the pressure compensating valve makes it possible to balance between the plus and minus sides in order to avoid one-sided overpressure. 5-valve manifolds expand on 3-valve manifolds with two further vent valves, which enable targeted venting of the measuring arrangement.