DQ3000 series soft seal ball valve has advantages of ball valves with different structures. It is designed on the basis of traditional ball valves with creative technology. This ball valve with lip type seats make seats with excellent seal performance and less abrasion, with full bore design makes small pressure loss, with super small torque and high cycle service life makes excellent performance of cutting off service. It is suitable for cutting off service of gas and liquid without hard solid impurity. It can be equipped with various electric or pneumatic actuator according to customer's requirements.