Abrasive solids suspended inside the fluid stream may well harm the seats and ball surface since the ball moves across the seats using a wiping movement. For split physique two parts ball valve, refer floating ball valve impression. Refer below impression for split physique a few pieces ball valve. In http://stainlessssteeltubing25684.collectblogs.com/18126928/how-ball-valve-can-save-you-time-stress-and-money