BPU plunger diameter control unit
The unit is intended for automatic or manual measurement control of diameter and tolerance of BPU plunger form. Tested plunger is manually installed to measure position of the unit and is measured. Diameter and form tolerance measurement is performed in various sections with rotation of tested plunger around axis using noncontact flexible gages and pneumatic device. Measurement results are displayed on monitor in form of a diagram and can be transfered to hardware and software package for electronic database of BPU repair and passport system.
Pneumatic control method is recommended by API standard.
Error of measurement in limits of 5% from controlled tolerance zone.