224C dp unit
Model 224C DPU in charge housings is a dual bellows instrument. The dual bellows setup includes two reverse fluid-filled bellows, center block, coil springs, overrange valves, and assembly of torque tubes. The pressure housings are connected by pipe or tube to the primary device in the system. With the lowest stress in a linear route, differential strain variations within energy housings cause the bellows to expand or split to the surface. The linear motion of the bellows is converted into angular rotation when transmitted to the torque tube engine by the spin wheel, and this mechanical movement activates the surveillance scheme.
An instrument, key, receiver, camera, or other process control unit may be the process monitoring instrument connected with torque tube assembly.