supply of valves for overhauling of unit no. 11, btps, obra, sonebhadra ( u.p. ) supply of valves for overhauling of unit no. 11, btps, obra, sonebhadra ( u.p. ) , cast steel gate valve, size: 100mm, class: 150, flanged end, body / bonnet / hand wheel: cast steel ( astm a216 gr wcb ) , wedge / seat ring: astm a216 gr wcb +13 % cr / ca15, spindle: ss aisi 410, gasket: ss 304, ffd: 229mm, pcd: 191mm, hole dia: 19mm, no of holes: 8 , cast steel nrv, size: 100mm, class: 300, ffd: 270mm, pcd: 250mm, hole dia- 19mm, no. of hole: 8 , c.s. gate valve, size: 150mm, class: 300, ffd: 400mm, pcd: 270mm, hole dia- 22mm, no. of hole: 8 , c.s. gate valve, size: 150mm, class: 300, ffd: 440 mm, pcd: 270mm, hole dia- 22mm, no. of hole: 8 , cast steel nrv, size: 150mm, class: 300, ffd: 360 mm, pcd: 250mm, hole dia- 24mm, no. of hole: 12 , cast iron gate valve, size: 300mm, class: 150, flanged end, body / bonnet / hand wheel: cast iron, wedge: 13% chromium, seal ring: chromium, gland: carbon steel, sleeve: alu. bronze / ni. resistance, bonnet bush: aisi 410, gasket: spiral wound metallic gasket, gland packing: metallic wire reinforced graphite asbestos, nut & bolt: astm a 193 b7 & 2h, flanged end drilled to bs 10 table d of following sizes: size 300 mm, ffd-355mm, pcd-390 mm, hole dia- 24mm, no. of holes- 12 , cast steel nrv, size: 300 mm, class: 300, pcd-390mm, ffd-695mm, hole dia-24mm, no of hole-12 , c.i. gate valve, size: 1 / 2”, class-150 , manually operated globe valve- 150mm nb, body astm-a216-wcb, stem stma 276304, seat ring astma 216 wcb, gland-astma 276410, gland packing-ptfe, working pressure- 15 kg / cm2 , manually operated gate valve- 150mm nb, body astm-a216-wcb, stem stma 276304, seat ring astma 216wcb, gland-astma 276410, gland packing-ptfe, working pressure- 15 kg / cm2 , nrv- 150mm nb, body astm-a216-wcb, cover astma 216wcb, disc- astma 216 wcb, disc nut -ss , c.i. plug valve, size-100 mm nb , c.i. gate valve, size: 100mm nb, od: 114mm, id: 100mm, type of valve: rising type, body: c.i., pressure: 15kg / cm2, medium: water, end connection: flange end, pcd: 190mm, no. of holes: 08 nos., hole dia: 18mm, flange to flange distance: 225mm , manually operated gate valve- 250mm nb, body astm-a216-wcb, stem stma 276304, seat ring astma 216wcb, gland-astma 276410, gland packing-ptfe , gun metal gate valve-1 / 2” ( 15mm ) , pressure 10-15 kg / cm2, medium: air, thread - both side , ci ball valve-1 / 2” ( 15mm ) , pressure 10-12 kg / cm2, medium: air, thread - both side , manually operated gate valve, size-50 nb ( rising type ) , working pressure 10-12 kg / cm2, medium-water, flange- both side , ci gate valve 1 ( 25nb ) , working pressure 10-12 kg / cm2, medium-water, thread- both side