tender for expansion, modification and re installation of ammonia refrigeration system at domkal chilling plant with 2 × pc-2 (20 hp) ammonia compressor, atmospheric condenser with supporting fittings and accessories.- 1 rate for expansion, modification and re installation of ammonia refrigeration system at domkal chilling plant with 2 × pc-2 (20 hp) ammonia compressor, atmospheric condenser with supporting fittings and accessories 2 scope of work i) dissembling of ammonia refrigeration plant machineries ;a) 2 x 20 hp pc-2 ammonia compressor with motor dismantling from foundation baseb) suction & discharge assemblies including 2 nos of suction and discharge valves , piping assemblies 2 nos of oil separators and suction –discharge gauge assemblies ( hp, lp, op with tripping systems)c) atmospheric condenser unit ( entire assembly ) from foundation .ii) transportation and shifting of the mentioned unit including vehicle arrangement from ben milk training centre , banjetia , berhampore to domkal chilling plant , bhatsala, domkal ( distance : 32 kms one side)iii) foundation, placement and re installation of the mentioned ammonia refrigeration units at domkal chilling plant .a) pre fabricated ms reil foundation ( approx 6 ft x 4 ft ) x 2 numbers. ( no civil foundation required )b) placing , positioning and installation of 2 x 20 hp pc-2 ammonia compressors including motors suction and discharge assemblies synchronization with existing suction and discharge line with bypass and valves , suction, discharge and oil gauge assemblies with tripping systems at domkal chilling plant.c) placing , positioning and installation of ammonia atmospheric condenser over existing spray pond at domkal chilling plant with 4 sections x 10 nos ( 2 inch ) ms condenser pipes with water line and 2 x 5 hp condenser water pumps with c.i. butter fly valves and g.i. piping fittings at required suction and discharge line with gas cutting , welding and fitting job.. 3 scope of supply of materials :i) 4 inch x 2 inch ms channel ( 10 ft l) 4 ii) 1 ½ inch x 1 ½ inch ms angle x 20 ft ( l) 5 iii) 4 inch ms header ( 20 ft l) 6 iv) 3 inch ms header ( 20 ft l) 7 v) 3 inch x 2 inch ( 10 mm thickness) ms plate 8 vi) 5/8 inch nut bolt with washer 9 vii) 5 inch ( 125 mm ) ci butterfly valve 10 viii) 2.5 inch ci butterfly valve 11 ix) 5 hp /3 phase / s x d 2 inch x 2 inch monoblock pump 12 x) 5 inch g.i. pipe ( 20 ft l) 13 xi) 4 inch g.i. pipe ( 20 ft l) 14 xii) 3 inch g.i. pipe ( 20 ft l) 15 xiii) 5 inch g.i. elbow 16 xiv) 3 inch g.i. elbow 17 xv) 32 mm g.i. nipple 18 xvi) 32 mm g.i. union 19 xvii) ½ inch nut bolt with washer 20 xviii) 2 inch x 2 inch ms angle( 20 ft l) 21 xix) 2 inch ms condenser u bend 22 xx) welding stick , gas cutter, oxygen cylinder halide gasket set , sulphur , teflon tape hand gloves helmet black glass and misc please enable macros to view boq information