bids are invited for contract for removal and boxing of control valves, safety valves at urea/abc plant.; 1 control valve - height up to 6m-150 # rf 3 & below 2 control valve - height up to 6m-300 # rf 3 & below 3 control valve - height up to 6m-1500 # rtj 3& • below 4 control valve - height up to 6m-i50 # rf 4 to 6 5 control valve - height up to 6m-300 # rf 4 to 6 6 control valve - height up to 6m-2500 # rtj 4 to 6 7 control valve - height up to 6m-150 # rf 7 up to 14 & below 8 control valve - height up to 6m-300 # rf 7 up to 14 & below 9 control valve - height 6 m to 10 m-300 # rf 3 & below 10 control valve - height 6m to 10 m-150 # rf 4 to 6 11 control valve - height 6m to 10m-300 # rf 4 to 6 12 control valve - height 6m to 10 m- 2500 # rtj 7to14 13 control valve - height 10 m to 20m-300 # rf 3& below 14 control valve - height 10m to 20m-300 # rf 4 to 6 15 control valve - height 10m to 20m-300 # rf 7 to 14 16 control valve - height 10m to 20m-2500 # rtj 7 to 14 17 control valve - height 20m to 30m-150 # rf 3 & below 18 control valve - height 20 m to 30m-300 # rf 3& below 19 control valve - height 20m to 30m-2500 # rtj-3 & below 20 control valve – height 20m to 30m-150 # rf-4 to 6 21 control valve - height 20 rn to 30m-300 # rf-4 to 6 22 control valve - height 20m to 30m-150 # rf-7 up to 14 23 control valve - lic-6 (4 2500# lens ring gasket) at height of 3 meters from ground floor 24 control valve - sd-2 (8 2500# lens ring gasket) at height of 3 meters from ground floor. 25 - control valve - hic-6 (4 2500# lens ring gasket) at height of i meters from ground floor. 26 control valve - hic-5 (4 2500# lens ring gasket) at height of 15 meters from ground floor. 27 control valve - pic-17v1 (1.5 2500# lens ring gasket) at height of 25 meters from ground floor. 28 pressure safety valve - height up to 6m-o/l,-6 150#rf-i/l 3 & below 29 pressure safety valve - height up to 6m-o/l-4 150#rf-i/l 3 & below 30 pressure safety valve - height up to 6m-o/l-2 300#rf-1/l 3 & below 31 pressure safety valve - height up to 6m-ol-1 300#rf-i/l 3 & below 32 pressure safety valve - height up to 6m-o/l-2 300#rf-i/l 3 & below 33 pressure safety valve - height up to 6m-o/1,-8 150#rf-1/l 4 to 6(ps 34 pressure safety valve - height up to 6m-o/l-10 150#rf-1/l 7 upto 14 35 pressure safety valve - height 6 to 10m--o/l-2 300#rf i/l 3 & below 36 pressure safety valve - height 10 to 20m-o/l-4 600#rf 1/1, 3 & below 37 pressure safety valve - height 10 to 20m-o/l-2 300#rf i/l 3 & below 38 pressure safety valve - height 10 to 20m-o/l-2 300#rf i/l 3 & below 39 pressure safety valve - height 10m to 20m-o/l-6 150#rf i/l 4 to 6 40 pressure safety valve - height 10m to 20m-o/l-8 150#rf 1/l 4 to 6 41 pressure safety valve - height 10m to 20m-o/l-6 150#rf i/l 4 to 6 42 pressure safety valve - height 20 to 30m-o/l-6 150#rf 1/l 3 & below 43 pressure safety valve - height 20 to 30m-o/1„-2 300#rf 1/1, 3 & below 44 pressure safety valve - height 20m to 30m-0/l-6 150#rf i/l 4 to 6 45 leveltrolls 3nb*2me. long (level troll) 46 leveltrolls 2nb*1me. long (level troll) 47 1, 300 # gasket replacement 48 2, 300 # gasket replacement 49 3, 300# gasket replacement 50 4, 300 # gasket replacement 51 6, 300 # gasket replacement 52 . 8 , 300 # gasket replacement 53 10 300 # gasket replacement 54 scaffolding erection outside equipment