bids are invited for 126kw puriflair air dryer heater bundle of the following specification. 1. 126kw, 415v, 3 phase star connected with neutral heater bundle complete including heating element, blind flange, spacer pipe, tie rod, earthing clit, lifting lug, eye bolt, cover shell and heater junction box along with glass insulated wire.the detail bom is as per enclosed drg. 2.63 no’s of 2kw, 240v zero bend type heating element of stud size m4 made up of nichrome having sheath sb407 tube incoloy and finish 8.2 mm dia and hexagonal nut size: od- 8.5mm, stud: 04 mm. 3.dimension of heater element: total length: 1035 mm, immersion length: 1014 mm out of which 100mm is cold zone.all elements shall be distributed in 03 banks having load 42 kw in each bank. 4.heating element tube shall be fitted on 24nb x 150# x sa 105 x blrf cover flange. 5.other specification of heater a. design code: asme sec. viii div.j ( latest ) b. design pressure: 11.0 kg / cm2 c. design temp.: 220deg c d. corrosion allowance: 11.5mm e. internal diameter: 594 mm f. height of straight: 1300 mm g. thickness of shell: 8 mm h. thickness of head: 8mm ( q3 ) total quantity : 2