Pneumatic positioner loading test stand

The present invention discloses a pneumatic valve positioner loading test bench, comprising: supporting the positioner and the measured real control means use a pneumatic actuator, a pneumatic actuator and the analog output terminal connected to a valve controlled pneumatic loading system condition , to provide a test measured positioner assembly test pressure regulator, connected to the detection box positioner. The pneumatic loading system comprising: a pneumatic actuator and the output of the reverse rotation of the actuator connected to the reverse voltage regulator to provide load actuator assembly loading pressure. Adjust the load output pressure regulator assembly, you can change the size of the reverse torque reverse actuator, to realize a change in the load acting on the output of the pneumatic actuator. Advantageously, the pneumatic actuators of small loading system used in a reverse configuration, for simulating the load condition controlled valve site, such that the positioner test conditions closer to the actual context in which the real use.