The top entry valve means a valvethat assemble the valve trim from the top end, the typical application of the top entry valve is the ball valve, it enables you to access its internals from the top. Top entry ball valve is ideal for in-line maintenance and repair. If the top entry ball valve needs to repair or clean, it can be easily dismantled, you do not need to remove the valve from the piping connection. The body of the valve is made from one-piece material. This ensures adequate strength and rigidity even at high operating pressure.
There are two typical types of top entry ball valves, top-entry trunnion mounted ball valve and top entry floating ball valve.