Radiator (Butterfly) Valves are used as shut off valves for detachable radiators of Oil Cooled transformer, Valve is equipped with a Butterfly Flap, which can be turned to Open and Close the valve, Valve remains in Open position when the transformer is in "On-load" condition, For Inspection and Repair of radiator, the Butterfly flap is closed and the Radiator is detached from the transformer, We manufacture Complete Range, from 50mm to 200mm.