bids are invited for valves carbon steel swing check valve, class 150, flanged and drilled as per ansi b16.5 rf , 150 nb cast carbon steel swing check valve, class 150, flanged and drilled as per ansi b16.5 rf , 20 nb stainless steel inline lift check valve, class 800, with both end threaded fitting , 25 nb stainless steel inline lift check valve, class 800, with both end threaded , 20 nb forged carbon steel lift check valve, class 800, socket welded ends as per ansi b16.11 to suit pipes as per ansi b 16.10 sch 80, , 25 nb forged carbon steel lift check valve, class 800, socket welded ends as per ansi b16.11 to suit pipes as per ansi b 16.10 sch 80 , 15 nb three pieces screwed end ss ball valve, class 300, standard threaded end as per bs 5351, lever operated. , 25 nb three pieces screwed end ss ball valve, class 300, standard threaded end as per bs 5351, lever operated. , 15 nb carbon steel y type strainer with ss 304 screen, class 800, socket weld end as per ansi b16.11. design as per ansi b 16.34 standard , 25 nb carbon steel y type strainer with ss 304 screen, class 800, socket weld end as per ansi b16.11. design as per ansi b 16.34 standard total quantity : 311