tender for procurement of spares for air preheater ( model 27.5 vitm 2000 72 degree pa ) of 2x250mw, unit no. 10 & 11, stps, sarni , spares for air preheater ( model 27.5 vitm 2000 720 pa ) of 2x250mw units. , inboard & outboard static seals for hot end sector plates; (one set = requirement for 1 aph), , inboard & outboard static seals for cold end sector plates; (one set = requirement for 1 aph), , cold end grating (one set = requirement for 1 aph), , t-bar including t - bar pin, t- bar tab and t- bar clip for hot end , taper lock bush of o/p shaft of main drive gear box , kao wool packing , packing rope for air sealing cover assembly (guide bearing) , packing rope for air sealing cover assembly (support bearing) , 50 mm gun metal valve thread connection for los working pressure 5 kg/cm2 , 25 mm gun metal valve thread connection for los working pressure 5 kg/cm2 , rotor angle he (one set = requirement for 1 aph), , soot blower pipe along with nozzle assembly , filter for air motor 1 bsp , relief valve(die casting)22 mm for lube oil system, working pressure 5 ksc, one end is56mm & other end is 46 mm, make-corona or equivalent. , lubricator for air motor 1 bsp , wash pipe assembly for hot end & cold end with ss nozzle(one set consist of 02 nos. ) , steel wire rope preform, ungalvanised steel wire rope core iwrc/steel core as per is 2266/2002, tensile strenght-1770 n/mm2, length:70 meter, dia. of rope- 6 mm, construction 6x19, make-usha martin or equivalent. , by pass seal bar assembly (one set consist of 1 hot end by pass seal bar -03 nos., 2 cold end by pass seal bar-03 nos.) , hot intermediate end support grating plates , shoot blower warm gear box , air motor model no ir92ra014,5.51:1 make: ingersol rand or equivalent , pin rack assembly , guide bearing air seal assembly (consist of followings aluminium seal assembly (upper) -01 no. aluminum seal assembly (lower) -01 no. spring -06 nos. bolt-06 nos. nut-06 nos. locknut-06 nos. washer-18 nos. pin-02 nos. seal ring