bids are invited for supply of an 73806 gate valves -1 310022351 . gate valve soli d wedge rising stem material-body-a216wcb / disc-182f6, 150lbs flanged r aised face ansi b16.5 size 10 inch as per api-600, 2 300067725 gate-valve, solid wedge rising stem material body-a216 wcb / disc-13 percent c r , 150lbs flanged raised face, ansi b16.5, size 14 inch. 3 310022352 gate valve solid wedge rising stem size-12 inch, rating 150 sch flanged, mate l body a 216 wcb, stem-a182 f6 / aisi 410 body seat ring-a105 / carbon ste el stellited, disc a-216gr wcb / a 217 ca-15 13 cr facing, end conne ction flanged 12 inch 150 sch as per ansi b-16.5, design as per api-600te 4 300097114 gate valve suitable for liquid ammonia service. operating temperature range -10 deg. c. to 35 deg. c. 5 300129621 gate valve, size 6 inch, 300 , body and bonnet astm a 352 lcb, gate ( flexible wedge ) f 304, stem ( burnished to 0.2 micron ) astm a 276 ss 304, seats ( threaded bushings ) f304, gland bush, back seat & hand wheel nut a 276 ss 304, gland flange a 350 lf2, fasteners a 320 l7 / a194 gr 8, gland packing prestressed grafoil, bonnet gasket ss 316 grafoil encapsulated, ends flanged and drilled to ansi b 16.5 rf, end to end dimensions as per ansi b 16.10, design as per api 600, testing as per api 598. total quantity : 30