tender for procurement of rubber door seal for m/s intervalve poonawalla ltd make valve installed at cooling water system of turbine area during upcoming aoh of unit#3 at 2x660 mw, ph-ii, sstpp , dongalia.(as per schedule) , rubber door seal for m/s intervalve poonawalla ltd make valve , spare seat for butterfly valve size 150, valve model: ivgk pressure rating: pn10 moc: nitrile , spare seat for butterfly valve size 400, valve model: ivgk pressure rating: pn10 moc: nitrile , spare seat for butterfly valve size 450, valve model: ivgk pressure rating: pn10 moc: nitrile , spare seat for butterfly valve size 200 valve model ivgk pressure rating 10 moc nitrile , spares seat for butter fly valve size 250 model igvk pressure rating pn 10 moc nitrile , spares seat for butter fly valve size 350 model igvk pressure rating pn 10 , spare seat for butterfly valve size 500 model igvk pressure rating pn 10