bids are invited for custom bid for services - overhauling of valves in secondary side systems of kknpp1 and 2 on as and when required basis item no 1overhauling of valves of size upto 1 inch nb qty 75 nos , custom bid for services - item no 2 overhauling of valves of size above 1 inch nb and upto 2 inch nb which includes gate valves butterfly valve globe valves plug valves and check valves etc scheduled qty 40 nos , custom bid for services - item no 3 overhauling of valves of size above 2 inch nb and upto 3 inch nb which includes gate valves butterfly valve globe valves plug valves and check valves etc scheduled qty 15 nos , custom bid for services - item no 4 overhauling of valves of size above 3 inch nb and upto 4 inch nb which includes gate valves butterfly valve globe valves plug valves and check valves etc scheduled qty 25 nos , custom bid for services - item no 5 overhauling of valves of size above 4 inch nb and upto 6 inch nb which includes gate valves butterfly valve globe valves plug valves and check valves etc scheduled qty 20 nos , custom bid for services - item no 6 overhauling of valves of size above 6 inch nb and upto 8 inch nb which includes gate valves butterfly valve globe valves plug valves and check valves etc scheduled qty 15 nos , custom bid for services - item no 7overhauling of valves of size above 8 inch nb and upto 10 inch nb which includes gate valves butterfly valve globe valves plug valves and check valves etc scheduled qty10 nos , custom bid for services - item no 8 overhauling of valves of size above 10 inch nb and upto 12 inch nb which includes gate valves butterfly valve globe valves plug valves and check valves etc scheduled qty 15 nos , custom bid for services - item no 9 overhauling of valves of size above 12 inch nb and upto 14 inch nb which includes gate valves butterfly valve globe valves plug valves and check valves etc scheduled qty 20 nos , custom bid for services - item no 10 overhauling of valves of size above 14 inch nb and upto 16 inch nb which includes gate valves butterfly valve globe valves plug valves and check valves etc scheduled qty 60 nos , custom bid for services - item no 11overhauling of valves of size 20 inch nb which includes gate valves butterfly valve globe valves plug valves and check valves etc scheduled qty 25 nos , custom bid for services - item no 12 overhauling of valves of size 24 inch nb which includes gate valves butterfly valve globe valves plug valves and check valves etc scheduled qty 20 nos , custom bid for services - item no 13 overhauling of valves of size 32 inch nb which includes gate valves butterfly valve globe valves plug valves and check valves etc scheduled qty 2 nos , custom bid for services - item no 14 testing and calibration of overpressure safety relief valve of size upto 1 inch nb which involves overhauling of valve carrying out seat and disc lapping pressure setting in valve testing machine scheduled qty 40 ..