procurement of start up vent valve with multi turn motorised actuator of stage- 1 ( 2 x 300 mw ) for sagardighi thermal power project, wbpdcl procurement of start up vent valve with multi turn motorised actuator of stage- 1 ( 2 x 300 mw ) for sagardighi thermal power project, wbpdcl , procurement ofstart up vent valve with multi turn motorisedactuator ofstage- 1 ( 2 x 300 mw ) for sagardighi thermal power project, wbpdcl , valve, 125nb bw, 183bar, w / actuator&motor for start up vent mov design pr-183 bars, design temp-550 degc, butt weld, pipe schedule-sch 160, max pr-293 bars, max temp-575 degc, body-a182f22, bonnet-a182f91, rotary actuator 150-500nm, on-off, ip-68, shaft din iso5210, flange f14, o / p speed range 5-40rpm, 1.7kw pipe od-147 mm, pipe od-101 mm, pipe thickness-23 mm, valve length-559 mm, valve type-‘t’ type, material of body / bonnet gasket-reinforced graphite, material stem packing- reinforced graphite, customer plate with freely difinable text at valve body and at actuator body.all bw-ends shall be protected with deoxaluminite, valve body seat surface-stellite, yoke-a105 , each roll should contain