High-temperature low-torque ball valve

The utility model discloses a high-temperature low-torque ball valve which comprises a valve body, a valve cover, a flow channel, a valve rod, a ball body and a valve seat. The valve body is composed of a left valve body and a right valve body, an upper end opening and a lower end opening are formed between the left valve body and the right valve body, the valve cover covers the upper end opening, the lower end opening is provided with a lower end seat in a penetrating mode, press-in blocks are arranged on the two sides of the lower end seat, and a transverse extension section is arranged at the lower end of the lower end seat. The valve seat comprises a contact seat and a spring seat, and a first compression spring is arranged in the spring seat; the runner consists of an inlet runner and an outlet runner, and the valve body is provided with an extrusion groove on the side of the inlet runner; the filter plate and the extrusion block are connected into the flow inlet channel. The ball valve has the advantage