Cryogenic turbine repairs consist of receiving the equipment, taking digital photographs of the as received condition, pre-cleaning prior to entering the shop, disassembly, recording all critical measurements and non-destructive testing of all critical parts and developing a work scope.
All reusable parts are cleaned either by glass beading, pressure washing or hand cleaning. The housing is painted outside. Parts are replaced as required, either manufactured by BO-GE Assembly or those from the customers stock. The rotating parts are componently balanced to a finite residual unbalance and the unit is final assembled. Final assembly includes recording all dimensions, run-outs and clearances.
Pictures are taken throughout and provided to the customer upon completion of the repair along with all inspection reports and certificates in digital format via electronic mail.
Due to the size and running speed of cryogenic turbines, all units are assembled in a semi-clean room using the same basic procedures used during an oxygen cleaned unit assembly.
An oxygen clean room is used for all expander turbines used for oxygen service. Black light testing is performed throughout the repair and oxygen cleaning certification is provided. All units packaged for oxygen service are vacuum bagged, tagged and sealed for long term storage.
ACD, Air Products, Atlas Copco, Cryostar, GE Rotoflow, Mafi-Trench and Worthington/Turbodyne are a few of the many cryogenic turbines we service.