bids are invited for supply of carbon steel seamless pipes as per specifications in section b chapter 1 , supply of ci butterfly valve, wafer type, ss disc, 150 class epdm resilient integral seat of size 100nb as per specifications in section b chapter 2 , supply of cs ball valve, flanged ends type, flange ansi b16.5 class150, size 25nb as per specifications in section b chapter 3 , supply of carbon steel forged flanges, butt weld and socket weld pipe fittings as per specifications in section b chapter 4 , supply of alarm valves with variable pressure trim kits of size 100nb as per specifications in section b chapter 5 , supply of y type strainer with ss filter of size 100nb as per specifications in section b chapter 6 , supply of sprinklers, size 15nb bspt, k factor 5.4 as per specifications in section b chapter 7 , supply of mild steel ms structural steel as per specifications attached as in section b chapter 8 , supply of paint materials as per specifications attached as in section b chapter 9 , supply of compressed asbestos fiber caf gaskets as per is 2712 for 150 class ansi b16.5 sor flanges, grade w 3, nonmetallic full face, thick 5 mm max. , supply of electro galvanized carbon steel full threaded studs with 2 nos. of hexagonal nuts and 2 nos. of washers as per specification in section b chapter 10 , fabrication of sprinkler system at facility 1 as per specification of section c chapter 1 , fabrication of sprinkler system at facility 2 as per specification of section c chapter 1 , fabrication of sprinkler system at facility 3 as per specification of section c chapter 1