procurement of various type of l.p. valves. procurement of various type of l.p. valves. total quantity as per nit. , hand wheel operated cast iron /cast steel gate valve conforming to bs:5150 class -125 or api-600/bs 1414, class-150, bolted bonnet, o/s & yoke type, rising stem, solid / flexible wedge, end connection: flanged, flanges as per asme/ansi b 16.1 class-125, flat faced drilled, of following sizes: , 50 mm , 65 mm , 80 mm , 100 mm , 150 mm , 250 mm , hand wheel operated forged carbon steel globe valve conforming to bs: 5352, class -150, bolted bonnet, o/s & yoke type, rising stem, solid wedge, renewable seat/disc, end connection: socket welded to asme b 16.11, of following sizes: , 25 mm , 40 mm , 50 mm , hand wheel operated cast carbon steel gate valve conforming to bs: 1414, class -150, bolted bonnet, o/s & yoke type, rising stem, solid wedge, renewable seat, end connection: butt welded to ansi b 16.25, of following sizes: , 150 mm , hand wheel operated forged carbon steel gate valve, full bore, conforming to bs: 5352 / api:602, class -800, bolted bonnet, o/s & yoke type, rising stem, solid wedge, renewable seat, end connection: screwed female to asme b 16.11, of following size: , 15 mm , 25 mm , 40 mm , 50 mm , hand lever operated cast iron butterfly valve (rubber-lined) wafer type, confirming to bs:5155, class-125/pn-10 with centering lugs, body moc: cast iron, disc moc: sg iron epoxy coated/ss-410 , shaft moc: 13% cr. steel/ss 410, seat/body lining: epdm/ ptfe, resilient & replaceable type with back up ring, suitable for insertion between two fixed flanges as per ansi/asme b 16.5 class 150 (ff distance = 56 mm) following size: , 100 mm , 150 mm , hand operated cast iron butterfly valves complete valve with companion flange and gear mechanism conforming to aww ac-504. the valve shall have wafer type flat faced drilled ansi b 16.5of following size: , 250 mm