i wanna know the role of TOP ENTRY in this definition it's difference with side entry valve.
Butterfly Valve: a piece that rotates in the pipe 360 degrees Ball Valve- a (circular) plate that goes up and down
The ball and seat components enter from the top for top entry ball valves, while the ball and seats enter from the side for side entry ball valves. The top entry features online maintenance without dismounting the valves from the pipes.
Top entry ball valve: One piece body construction, Fire Safe, Full / Reduced Port, Soft or Metal Seated, Antistatic device, Blowout proof stem, Lever operated, Gear Operated or Actuated. Made up of Carbon Steel, Stainless Steel, Low Temp Carbon Steel, Duplex, Super Duplex, Super Austenitic Stainless Steel and exotics like Inconel, Monel, Hastelloy etc.
