procurement of various type and size industrial gray cpvc valves (make gerog fischer/ astral/ spears only) for dm and etp plant of 2x250mw units of stps sarni. , various types and size of industrial grey cpvc valves to suit fitment in cpvc pipes conforming to astm f 441 & cpvc fittings conforming to astm f 439, manual ball valve 375 with ptfe seat cpvc/epdm in following sizes ( (make : gerog fischer/astral/spears only). , 1/2 dn 15 , 1 dn 25 , 1 1/2 dn 40 , various types and size of industrial grey cpvc valves to suit fitment in cpvc pipes conforming to astm f 441 & cpvc fittings conforming to astm f 439, manual ball valve 546 (ptfe seat) with plastic competible buttress thread of union nut pvc-c/epdm in following sizes (make : gerog fischer/astral/spears only). , 3/8 dn 10 , 2 1/2 dn 65 , 3 dn 80 , various types and size of industrial grey cpvc valves to suit fitment in cpvc pipes conforming to astm f 441 & cpvc fittings conforming to astm f 439,manual cpvc wafer type check valve, epdm in following sizes (make : gerog fischer/astral/spears only). , 2 1/2 dn 65 , 3 dn 80 , 4 dn 100 , 6 dn 150 , 8 dn 200 , various types and size of industrial grey cpvc valves to suit fitment in cpvc pipes conforming to astm f 441 & cpvc fittings conforming to astm f 439, manual diaphragm valve 514 with circular diaphragm and threaded bonnet cpvc/epdm in following sizes (make : gerog fischer/astral/spears only). , 1/2 dn 15 , 1 1/2 dn 40 , 2 dn 50 , various types and size of industrial grey cpvc valves to suit fitment in cpvc pipes conforming to astm f 441 & cpvc fittings conforming to astm f 439,manual diaphragm valve 317 cpvc/epdm in following sizes (make : gerog fischer/astral/spears only). , 2 1/2 dn 65 , various types and size of industrial grey cpvc valves to suit fitment in cpvc pipes conforming to astm f 441 & cpvc fittings conforming to astm f 439,manual cpvc piston type cone check valve, socket end, seat ptfe, in following size (make : gerog fischer/astral/spears only). , 1/2 dn 15 , 3/4 dn 20 , 1 dn 25 , 1 1/4 dn 32 , 1 1/2 dn 40 , 2 dn 50 , 2 1/2 dn 65 , various types and size of industrial grey cpvc valves to suit fitment in cpvc pipes conforming to astm f 441 & cpvc fittings conforming to astm f 439, manual double eccentric buv 567 pvc/epdm in following size (make : gerog fischer/astral/spears only). , d75 dn65 , d160 dn150 , d225 dn200 , various types and size of industrial grey cpvc valves to suit fitment in cpvc pipes conforming to astm f 441 & cpvc fittings conforming to astm f 439, l strainer 305 cpvc/epdm (make : gerog fischer/astral/spears only). , d50 dn40 , various types and size of industrial grey cpvc valves to suit fitment in cpvc pipes conforming to astm f 441 & cpvc fittings conforming to astm f 439, manual screen perfor 305 pvc in following size (make : gerog fischer/astral/spears only). , d50-0.5 , various types and size of industrial grey cpvc valves of make gerog fischer/astral/spears only to suit fitment in cpvc pipes conforming to astm f 441 & cpvc fittings conforming to astm f 439, manual union cpvc/epdm in following size. , pn10 d50- 1 1/2