Structural high-temperature gear pumps are positive displacement pumps that operate by utilizing the volume change caused by the interlocking of the main and driven gears to transport melt. The working volume is composed of the pump housing, gear tooth slots, and bearings with side plate functions. The pump and motor are assembled into an oil pump unit using a three-jaw elastic coupling. Characteristics of high-temperature oil pump seals: The high-temperature oil pump runs smoothly with low noise, reliable sealing, long lifespan, and safe and reliable operation.