The Orbit Plug Valves, also known as the bevel gear drive, applies the warlords to the pipelines of aviation kerosene, crude oil, light oil, natural gas, liquefied gas, pipeline gas and chemical medium, as an ideal device for truncating medium. The key to the operation of the pun double break and discharge valve is the action of two pieces of sealing sliding vane installed on the cock. The shape of the track plug valve is close to the gate, and the way of flange connection is adopted. The design principle is reasonable, simple and beautiful, so as to meet the market demand.