procurement of ci ebonite lined diaphragm valves and taper plug valves for dm plant i and ii at sgtps mppgcl birsinghpur , specification (i) valve type : diaphragm valves series s2k (ii)body: cast iron astm a126 class b (bs 10 table “d”)/(ansi 16.5) (iii)bonnet / hand wheel : cast iron astm a126 class b (iv)stem: steel astm a276 type 410 (v)end connection: flange (bs 10 table “d”)/(ansi 16.5) (vi)design standard: en 13397, testing standard:66-1 (vii)lining: ebonite lineddiaphragm: neoprene rubber (viii)drilling :asa125# , operation: hand wheel make: bdk, pcv, unimac, procon & saunders or equivalent isi make following sizes:- , 25 mm , 40 mm , 50 mm , 80 mm , 100 mm , 125 mm , 150 mm , 200mm , taper plug valve make : audco/fisher/xomox/weir bdk/dezurik or equivalent isi make only specifications:- plug valve material : case hardened carbon steel type: standard pattern : short class: ansi 150 body material steel wbc (astm a216 gr. wcb but with max c 0.25 %) plug material : case hardened carbon steel , size 1”(25 mm) , size 1.5” (40 mm) , size 2” (50mm )