SUPPLY FABRICATION ERECTION DISSMANTELLING REPLACEMENT OF SUPER HEATER COILS HEADER TUBE of BOILER MP 4637 and BOILER MP 3561

Amount

Description and material grade

40 Ton Boiler No. MP-4637 - Primary super heater coils MOC as per SA213 Gr. – T22 , Seamless As per Drg. No. – NSSK/B-327 Row No.- 31 ,33,35,37,39,41,43,45,47,49,51,53,55,57,59 Size- OD38.1mm x3.66 Thk. a. Replace coils to be hanged on hangers properly so that coils load be distributed on hangers. If existing hangers are damage to be replace by new hangers. New hangers will be supplied by karkhana. b. At top and bottom portion of coils necessary arrangements with S.S. flat iron (50mm x 10mm) to be made such that coils does not collide and remain in one line.

Primary super heater coils stub – MOC as per SA213 Gr. – T22 , Seamless As per Drg. No. – NSSK/B-327 Row No.- 31 ,33,35,37,39,41,43,45,47,49,51,53,55,57,59 Stub size – 38.1 mm OD x 4.06mm thk x 250 mm Lg.

Secondary super heater coils as per drg. at secondary header. MOC as per SA213 Gr. – T22 , Seamless As per Drg. No. – NSSK/B-327 Row No.- 32,34,36,38,40,42,44,46,48,50,52,54,56,58 Size- OD38.1mm x3.66 Thk. a. Replace coils to be hanged on hangers properly so that coils load be distributed on hangers. If existing hangers are damage to be replace by new hangers. New hangers will be supplied by karkhana. b. At top and bottom portion of coils necessary arrangements with S.S. flat iron (50mm x 10mm) to be made such that coils does not collide and remain in one line.

Secondary super heater coils stub – MOC as per SA213 Gr. – T22 , Seamless As per Drg. No. – NSSK/B-327 Row No.- 32,34,36,38,40,42,44,46,48,50,52,54,56,58 Stub size – 38.1 mm OD x 4.06mm thk x 250 mm Lg.

20 Ton Boiler No. MP-3561- Replacement of Super heater coil from drum to 1.6 Mtr. length As per Drg. No. – NSSK/ B308 material B.S. 3059/68-33 part – I E.R.W. Size- 44.5x9 Gauge x1.6 Mtr. long approx.

20 MT Boiler No. MP-3562- Replacement of left side header while viewing standing in front of boiler tube No. 19 & 21 from header to header without stubs tube length 11350mm approx . as per Drg. no. – NSSK/182 Material B.S. 3059/68-33 part – I E.R.W. Size- OD 70mm x 9 Gauge x 11350 long approx.

radiant thermal engineers (BID ID -1282118)

Privilege Biksons Boilers Pvt Ltd (BID ID -1280782)

DOLPHIN ENGINEERS (BID ID -1284200)