Improvements in Connection with Gas Reversing Valves for Regenerative Furnaces JSGT_V06_T220
In gas reversing valves of the ordinary type the valve seating is liable to get warped or burned away, thus allowing a leakage of gas to the stack flues. This burning and warping is due to the current of hot waste gases turning downward over the valve seating on the way to the stack, alternating with the hot producer gas impinging on the sill on its way to the furnace. Any leakage of gas between the valve and its seating further aggravates the distortion or deformation of the sill, thus permitting an increasingly rapid escape of gas.
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