procurement of different size/ type of valves for dust suppression system of chp-iv, stps, sarni. procurement of different size/ type of valves for dust suppression system of chp-iv, stps, sarni. , gate valve 200nb, bolted bonnet & outside screw, rising spindle type with flanged end connection. material: cast steel, operating pressure/temp: 17 bar/100 deg c, class- 150, mfg. std-api600. , gate valve 150nb, bolted bonnet & outside screw, rising spindle type with flanged end connection. material: cast steel, operating pressure/temp: 17 bar/100 deg c, class- 150, mfg. std-api600. , globe valve 150nb, bolted bonnet & outside screw, rising spindle type with flanged end connection. material: cast steel, operating pressure/temp: 17 bar/35 deg c, class- 150, mfg. std-bs-1873. , gate valve 100nb, bolted bonnet & outside screw, rising spindle type with flanged end connection. material: ci, operating pressure/temp: 15 bar/100 deg c, class- 150, pn16, mfg. std-is14846/bs5150. , globe valve 100nb, bolted bonnet & outside screw, rising spindle type with flanged end connection. material: cast steel, operating pressure/temp: 17 bar/35 deg c, class- 150, mfg. std-bs-1873. , non return valve size 100mm nb, moc:cast carbon steel, swing lift type bolted cover, end flange with counter flanges and fastener, class: 150asa , gate valve 65mm nb, rising spindle type as per api: 600, moc: astm a 105 // cast carbon steel (wcb) body: wedge seat ring: ss-304, stem: ss410, flanged end as per asme b 16.5” class-150. , ball valve 3 pieve with ms lever operated 50mm nb, moc: astma a 105 // cast carbon steel (wcb) ball // float: ss 304 flanged end as per asme b 16.5 class-150 , gate valve 50mm nb, rising spindle type as per api: 600, moc: astm a 105 // cast carbon steel (wcb) body: wedge seat ring: ss-304, stem: ss410, flanged end as per asme b 16.5” class-150. , non return valve (dual plate type) as per api:594, size 50mm nb, moc: body & disc- astma a 105 // cast carbon steel (wcb)flanged end as per asme b 16.5 class-150 , gate valve 40mm nb, rising spindle type as per api: 600, moc: astm a 105 // cast carbon steel (wcb) body: wedge seat ring: ss-304, stem: ss410, flanged end as per asme b 16.5” class-150. , globe valve 40nb, screwed end connection. material: gun metal, operarating pressure/temp: 8 bar/45 deg c, class- 1, mfg. std-is-778. , gate valve 25mm nb, rising spindle type as per api: 600, moc: astm a 105 // cast carbon steel (wcb) body: wedge seat ring: ss-304, stem: ss410, flanged end as per asme b 16.5” class-150. , ball valve 3 pieve with ms lever operated 25mm nb, moc: astma a 105 // cast carbon steel (wcb) ball // float: ss 304 flanged end as per asme b 16.5 class-150 , gate valve 15mm nb, rising spindle type as per api: 600, moc: astm a 105 // cast carbon steel (wcb) body: wedge seat ring: ss-304, stem: ss410, flanged end as per asme b 16.5” class-150.