Test couplings are integrated at points in the piping systems where pressure measurements should be done sporadically. To perform a measurement the operator connects the pressure gauge or the pressure transducer with a thin measuring hose on the measurement connection. As soon as the measurement hose is connected with the connection, the connection opens similar to a coupling and thus passes the medium to the measurement hose. The connections can be used for pressures up to 630 depending on type and are supplied in galvanised steel or stainless steel. We offer 3 connection systems: Threads M 16 x 2 and M 16 x 1,5 and a plug system, whereby the connection thread M 16 x 2 is by far the most popular connection system.