procurement of special gasket and sealing ring of make spitmaan, james walker immarco for aoh of unit no. 10, ph-iv, stps, sarni procurement of special gasket and sealing ring of make spitmaan, james walker immarco for aoh of unit no. 10, ph-iv, stps, sarni , special gasket , crh nrv gasket(flexible pure graphite crh-nrv sealing ring having top & bottom multilayered wire mesh as per bhel profile & rectangular to withstand temperature 600 c and pressure 300 bar) , size:od-710 mm, id-665 mm thick- 36.6 mm , grafoil self sealinn ring for crh isolating device(line size : 457 x 12.7 mm) drawing attached , ss gaphoil filled spiral wound gaskets with ss-316 braided to withstand temperature 600 c and pressure 300 bar) , 248.5x231.5x4.5 mm , 74x54x4.5 mm , 148x124x4.5 mm , 630x597x5 mm , 505x470x5 mm , 420x385x5 mm , 740x695x5 mm , 585x570x4.5 mm , 38x26x6 mm , graf seal wire braided gland packing ring in two half oblique cut for high pressure valve250 kg/cm2 and temperature 600 degree c , 60 x 40 x 10 mm , 56 x 84 x10 mm , 55.4x27.15x10 mm , 41.17x17.4x9 mm , 30x42x10 mm , asbestos braided graphite gland packing ringreinforced with ss/special alloy wire in single oblique cut suitable for h.p.valve to withsatnd pressure 250kg/cm2 and temp. 600°c , 80 x 60 x 12 mm , 30x42x6 mm , 62x86x12 mm , 40x56x10 mm , 34x54x10 mm , sealing ring (ingraf flexible pure graphite low emission die moulded & compressed ring in endless form to withstand temperature 600 c, pressure 300 bar suitable for for valves handling superheated & saturated steam. , a50x70 mm , b50x70 mm , 112x88x12 mm , 38x22x8 mm , 96 x 70 x 12 mm