F-shaped three-way external emergency cut-off valve for liquefied gas

The utility model belongs to the technical field of cut-off valves, and discloses an F-shaped three-way external emergency cut-off valve for liquefied gas, which comprises an F-shaped pipe body, the F-shaped pipe body is of an F-shaped structure, the two end parts of the F-shaped pipe body are sequentially provided with a first-stage gas transmission port and a third-stage gas transmission port, the middle part of the F-shaped pipe body is provided with a second-stage gas transmission port, the shape of the F-shaped pipe body can be referred to a graph, and the whole structure of the F-shaped pipe body is of an F-shaped structure. One-time casting is adopted, so that the directions of the connected air pipes are the same, the situation that the hoses are bent and connected is reduced, meanwhile, the F-shaped design ensures that optimal smooth air supply is achieved, the hoses for conveying air do not have dead bends, and air flow is smooth; according to the utility model, a novel structure is adopted, the who