procurement of insulator heaters shaft and support for esp system, silo blower heater and esp blower heaters for 1x500mw unit at sgtps, mppgcl, birsinghpur. , support insulator heater type: tubular heater voltage: 415 v(ac), wattage: 1000 w, made out 8.2 mm dia ss-321 (element dimension: 48cm x 72cm) , shaft insulator heater type: tubular heater voltage: 415 v(ac), wattage: 1000 w, made out 8.2 mm dia ss-321 (element dimension: 50cm x 40cm) , silo blower heater : 33kw, 415 v, 3-ph star connected air heater bundle consisting of 24 nos. u-shaped heating elements each of 1375 w,240 v and made out 8.2 mm dia. ss-321 tube brazed on ms flange of (10” nb blrf x 150 # ansi b 16.5) with length of 1200 mm below the flange. the heater assembly shall be suitable for fitment on existing heater vessel. flange drg.no.hea-3/1921 , esp blower heater & air dryer : 28kw, 415 v, 3-ph star connected air heater bundle consisting of 15 nos. u-shaped heating elements each of 1867 w,240 v and made out 8.2 mm dia. ss-321 tube brazed on ms flange of (10” nb blrf x 150 # ansi b 16.5) with length of 1200 mm below the flange. the heater assembly shall be suitable for fitment on existing heater vessel. flange drg.no.hea-3/1920