Top entry trunnion mounted ball valve https://www.shhuhangvalve.com/Top-entry-trunnion-mounted-ball-valve.html Main features: Ease for online overhaul and maintenance. When valve needs to be repaired, it doesn’t need to remove the valve from the pipeline, just remove the body-bonnet joint bolts and nuts, and then move out the bonnet, stem, ball and seats assembly to repair the parts. It can save maintenance time. Related news: https://www.shhuhangvalve.com/Top-Entry-Trunnion-Ball-Valve-Revolutionizes-Oil-and-Gas-Industry.html