supply of set of vales for escorts make modular brake controller type esbs iii m consisting of 08 items for 1400 hp demu ( 1 ) equalizing discharge valve to escortss pt. no. 6600-01 no. ( 2 ) isolating valve to escort pt. no. 6120-01 no. ( 3 ) isolating valve feedback cylinder to escort pt. no. 6800-01 no. ( 4 ) auto unit to escorts pt. no. 6355-01 no. ( 5 ) pressure limiting valve to escort pt. no. 6700-01 no. ( 6 ) mr isolating valve to escorts pt. no.6400-01 no. ( 7 ) hand operated isolating valve to escorts pt. no. 6500-01 no. ( 8 ) emergency valve to escorts pt. no. 6220-01 no. [ warranty period: 30 months after the date of delivery ]