Pilot type parallel double-flat-plate high-temperature and high-pressure gate valve

The invention is applicable to the technical field, and provides a pilot type parallel double-flat-plate high-temperature and high-pressure gate valve which comprises a valve body, a valve cap is arranged at the top end of the valve body, sealing seats are arranged on the two sides in the valve body respectively, a gate plate is arranged between the two sealing seats, and a first channel is formed in the middle of the gate plate. A pilot valve assembly is arranged on one side of the first channel, a gate plate seat is arranged at the top end of the gate plate, a valve rod is connected to the gate plate seat in a sliding mode, a fixing ring is arranged on the valve rod, a push-pull rod is arranged between the fixing ring and the pilot valve assembly, and the upper portion of the valve rod penetrates through the valve cap. The end, extending to the upper portion of the valve cap, of the valve rod is connected with an actuator. A first sealing ring and a second sealing ring are arranged, so that the sealing effect of the gate valve is greatly improved. A pilot valve is connected to a flashboard, the opening torque is greatly reduced through pressure relief of the pilot valve, configuration of the actuator can be greatly reduced, a bypass valve does not need to be welded, cost is saved, and safety and reliability are achieved.