procurement of valves and nrv for air, water and chemicals system for tmd-ii at 2x660 mw, sstpp, mppgcl, dongalia , manual globe valve 25 nb, class 2, body moc- is 318 gr 2, disc gun metal, threaded end connection as per ansi b2.1 , manual globe valve 40 nb, class 2, body moc- is 318 gr 2, disc gun metal, threaded end connection as per ansi b2.1 , manual globe valve 50 nb, class 2, body moc- is 318 gr 2, disc gun metal, threaded end connection as per ansi b2.1 , check valve (piston lift) size 25 nb, class#800, astm a182 grade f316, socket weld end , check valve (swing check) size 25 nb, class#800, astm a182 grade f316, socket weld end , three piece ball valve, body-ss304,stem-ss 304, seat- ptfe, pressure class#150, end connection socket weld size- 15nb , three piece ball valve, body-ss304,stem-ss 304, seat- ptfe, pressure class#150, end connection socket weld size- 25nb , ball valve, material is318 gr 2/ gun metal, size 15 nb, class 2, threaded end connection , ball valve, material is318 gr 2/ gun metal, size 25 nb, class 2, threaded end connection , ball valve, material is318 gr 2/ gun metal, size 40 nb, class 2, threaded end connection , ball valve, material is318 gr 2/ gun metal, size 50 nb, class 2, threaded end connection