tender for procurement of 300nb & 350nb bray/vaas make knife gate valve spares for silo of ash handling plant of 2x660 mw, sstpp, mppgcl, dongalia, dongalia. (as per the schedule) , 300 nb knife gate valve spares for silo. make-bray/vaas (model: fig 950) design :- mss-sp-81, construction :- single piece , uni- directional, pressure rating pn-10, body ends -wafer, semilug design temp (deg c)- 100 flange drilling - ansi b16.5 class 150 , body, gland, packing body in ductile iron + gland + gland packing of ptfe impregnated syntex fibre. , gate with plate ss304 gate ( hard chrome ) with clevis , suitable integral seat , actuator with stem, clevis pneumatic cylinder ccmc8 / 12 with position indicator, limit switches 2 nos ad sov brackets , 350 nb knife gate valve spares for silo. make-bray/vaas (model: fig 950) design :- mss-sp-81, construction :- single piece , uni- directional, pressure rating pn-10, body ends -wafer, semilug design temp(deg c)- 100 flange drilling - ansi b16.5 class 150 , body, gland, packing body in ductile iron + gland + gland packing of ptfe impregnated syntex fibre , gate with plate ss304 gate ( hard chrome ) with clevis , suitable integral seat , actuator with stem, clevis pneumatic cylinder ccmc8 / 14 with position indicator, limit switches 2 nos ad sov brackets