procurement of different knife gate valve ( kgv ) with actuator for 1y and 2y dry ash conveying line restoration at ahp, stg#1, sgtpp through capex2021-22. , knife gate valve, size:300nb for wet ash system sgtpp with pneumatic cylinder actuator, no:950 ( uni-directional 300nb kgv, body: ductile iron, gate: ss304 hard chrome, seat: integral metal ( same as body ) , packing: ptfe impregnated synthetic fiber. stem: ss304 - rising, pressure rating: 10 bar, with pneumatic double acting cylinder actuator actuator accessories: solenoid valve + limit switches + tubing & fittings, 5 / 2 way single solenoid, supply voltage: 24v dc / 110v ac make- bray control valve / orbinox / equivalent ) , kgv 250nb with pneumatic actuator mid flanged, two piece design bi-directional. body:ductile iron astm a 395 gr 65-45-15, gate: ss304 hard crome, seat: epdm u seal pure ptfe, stem: ss304 rising stem, drilling:asme b16.5 #150, sov + limit swithces, tubing ( bi-directional 250nb kgv, body: ductile iron, gate: ss304 hard chrome, seat: epdm / viton ( ss316 reinforced ) , packing: ptfe impregnated synthetic fiber. stem: ss304 - rising, pressure rating: 10 bar, with pneumatic double acting cylinder actuator actuator accessories: solenoid valve + limit switches +tubing & fittings, 5 / 2 way single solenoid, supply voltage: 24v dc / 110v ac make- bray control valve / orbinox / equivalent )