The tank bottom ball valve is used for pressure vessels and storage tanks of draining and discharging with the fully inclusive designed ball seat and compensation automatic type sealing . So it has advantage of high pressure, high temperature resistance, small torque, long life and other characteristics to meet CIP and SIP cleaning and sterilization. It is very suitable for the application in high cleanliness requirements in process systems such as pharmaceutical, food and beverage, dairy products, chemical industry etc.. Tank bottom ball valve can configure a variety of different actuators, electric, pneumatic and manual are interchangeable.