Ball valve with good sealing performance

The utility model discloses a ball valve with good sealing performance. The ball valve comprises a valve body, an end cover, an execution module, a valve rod module and an actuator. The end cover covers a port at one end of the valve body; the execution module is arranged in the valve body; the valve rod module is arranged on the valve body, and the output end of the valve rod module is connected with the execution module and used for driving the execution module to move. The actuator is arranged at the top of the valve body, and the output end of the actuator is connected with the input end of the valve rod module. The ball valve solves the problems that a ball valve in the prior art is short in service life, short in maintenance period and poor in sealing performance, the service life of the ball valve is greatly prolonged, the maintenance period is prolonged, and the sealing performance is better. 本实用新型公开了一种具有良好密封性的球阀，包含：阀体、端盖、执行模块、阀杆模块和执行器；端盖盖设在阀体的一端的端口处；执行模块设置在阀体的内部；阀杆模块设置在阀体上，阀杆模块的输出端与执行模块相连，用于带动执行模块运动；