GANDHI ENGINEERING CO An ISO 9001-2008 company manufacture high sealing Efficiency Dampers (Sealing Exceed 99.99%)In Circular, Rectangular &Multilovers Guillotine, divertor etc .Various Blade opening types like Parallel Blade, Opposed blade, Butterfly valve type, single blade, wing blade, Poppet type &Slide gate type, Dampers are available to suite various service application. Materials of construction for Dampers