The compressed air from RR20 100 is applied for operations of Brake system. Apart from these applications, it is used for operating horns, wind screen wipers and hold the pantograph at lifted position in the locomotive. Reciprocating air compressor RR20 100 is designed for underslung mounting and for use in AC Electric Locomotives type WAG9 and WAP5 manufactured by CLW, Chittaranjan. Features: RR20 100 compressor is of W type configuration, 3 cylinder, 2 stage, oil splash lubricated, air cooled, direct coupled through tyre coupling and powered by an AC motor. Specially developed for underslung mounting application Engineering Data: Free air delivery : 105 m3/h, 61.8 cfm, 1750 lpm Working pressure : 10.2 kg/cm2 Type of valves :Disc valves Compressor rated speed : 980 rpm Motor power rating