Light industry "O" type ball valve is a right angle rotary cut-off valve. It is also used as a regulating valve in a few occasions. It is used in conjunction with pneumatic or electric actuators to achieve remote control, and can also be equipped with a handle or worm gear for manual control. Its structure adopts a movable sealing seat bidirectional sealing design. The valve core has great shear force and self-cleaning function when rotating without clearance between the bidirectional sealing seats, especially suitable for controlling suspensions and viscous media with fibers and small solid particles. Therefore, this product is widely used in automatic control systems of industrial sectors such as papermaking, petrochemicals, chemicals, metallurgy, power, environmental protection, petroleum, and light power.