bids are invited for 95503721020_1/2 gate valve socket weld - 1/2 inch (15 mm) forged steel socket weld outside screw and yoke type bolted bonnet gate valve, class- 800, mfg std- api 602 and ibr, testing std- api 598 and ibr, socket weld ends as per ansi b 16.11, body and bonnet- astm a 105, trims- 13% cr steel (ss 410), hyd test pressure: body- 2975 psig, seat- 2175 psig. ibr iii-c certificate is to be furnished along with the material. , 95503304140_cs gate valve 1 1/2 socket weld - 1 1/2 inch size(40 mm) forged steel socket weld outside screw and yoke type bolted bonnet hand wheel operated gate valve. class- 800, mfg std- api 602 and ibr, testing std- api 598 and ibr, socket weld ends as per ansi b 16.11, body and bonnet- astm a 105, trims- 13% cr steel (ss 410), hyd test pressure: body- 2975 psig, seat- 2175 psig. ibr iii-c certificate is to be furnished along with the material. , 95521053000_80 nb nrv,class:#150, flange type - 80 nb cast carbon steel bolted bonnet swing check valve, class-150, material of construction: astm a 216 gr. wcb, trim - 13% cr [trim-1], end connection - flanged as per ansi b 16.5. face to face dimensions - as per asme b 16.10, operation: automatic. design standard-api 600. manufacturing standard bs 1868, testing standard api 598. , 95521027180_nrv,4,flap ty.pcd of hole-175mm,body-cs - 100 nb cast carbon steel bolted bonnet swing check valve, class-150, material of construction: astm a 216 gr. wcb, trim - 13% cr [trim-1], end connection - flanged as per ansi b 16.5. face to face dimensions - as per asme b 16.10, operation: automatic. design standard-api 600. manufacturing standard bs 1868, testing standard api 598. , 95521019150_spring loaded disc,type-nrv,size-6 - 6 inch size(150 nb) cast carbon steel bolted bonnet swing check valve, class-150, material of construction: astm a 216 gr. wcb, trim - 13% cr [trim-1], end connection - flanged as per ansi b 16.5. face to face dimensions - as per asme b 16.10, operation: automatic. design