procurement of spares of attemperation valves sh and rh and feed control valves make instrumentation limited installed at boiler of unit no.3 and 4, sgtps, mppgcl, birsinghpur , s / h attemperatin valve ( 1st stage ) , t ag no. tcv -1, s. n0. 9815399rating – ansi 2500 model–vscva3r, body-a-216 wcb size – 2” , plug with stem bin no. 916-04-869-519-01 , cage bin no. 916-04-869-520-01 , pressure seal ring bin no. 916-04-869-521-01 , monel gasket set bin no. 916-04-869-522-01 , s / h attemperatin valve ( 2nd stage ) , tag no. tcv-2, s. n0. 9815491, body–a-216 wcb, rating–ansi 2500, size–1 ½”, model- vscva3r , plug with stem bin no. 916-04-869-513-01 , pressure seal ring bin no. 916-04-869-515-01 , monel gasket set bin no. 916-04-869-516-01 , r / hattemperatin valve, tag no. tcv-3, body– a-216 wcb, rating–ansi 2500, s. n0. 9815479 size – 1’’, model- vstcascaded , plug with stem bin no. 916-04-869-645-01 , cage bin no. 9160486964601 , monel gasket set bin no. 916-04-869-524-01 , full load feed control valve, tag no bfd -8&14, s.n. 9815970&71, type- globe, model-vscspam, size -10”, rating – ansi 2500 , plug with stem bin no. 916-04-869-498-01 , pressure seal bin no. 916-04-869-500-01 , monel gasket bin no. 916-04-869-501-01 , packing set bin no. 916-04-869-502-01 , low- load feed control valve, tag no bfd -11, s.n. 9815696, type- globe, model-vsc va4r, size -6”, rating - ansi 2500 , pressure seal bin no. 916-04-869-504-01