High temperature valve

The invention relates to the filed of high temperature valve devices, and provides a high temperature valve, which comprises a valve body and a valve plate, wherein the valve plate has a cavity structure; the cavity structure comprises an air inlet and an air outlet which are positioned on the top of a cavity; and the air inlet is connected with an air inlet pipe. The valve plate adopts a heat-resistant steel cavity structure and hollow air-cooled heat radiation, an inner cavity is externally stuck with a high-temperature heat insulating material, and an outer layer of the high-temperature heat insulating material is provided with a high-temperature refractory material to further reduce the temperature tolerated by heat-resistant steel and prolong the service life of the heat-resistant steel. Simultaneously, compared with the prior water-cooled high temperature valve, the high temperature valve saves water resources and greatly reduces the production cost. In addition, the inner cavity of the valve plate is m