Air Dryer Reconditioning / Overhaul

The Component Business Unit undertakes the overhaul of Graham-White 975 and Graham-White 994 Air Dryer series twin tower air dryers and Wabtec “Vaporid” Train-Line Air Dryers.  Air dryers are dismantled and all parts cleaned and tested in accordance with the manufacturer’s instructions. The desiccant is replaced with new, along with all seals, Gaskets, O-rings and the recommended mandatory change parts.
 
Prior to dispatch, all air dryers undergo a thorough testing, including 1,000 volt AC HIPOT insulation test, circuit board testing (including memory function), pressure switch testing, air flow performance test and air humidity testing.
 
The overhauled air dryer is securely packed and protected and prepared for shipment to the customer.