1. The valve has an indication of opening and closing position; 2. Locking device; 3. Valve stem anti-fly structure; 4. Anti-static device; 5. Fireproof structure; 6. Unique seat sealing structure; 7. The middle flange (the valve body and the left body connection) has no external leakage structure. Floating ball valves are divided into: ordinary carbon steel series (WCB & A105); stainless steel series (304, 316); low temperature steel series (LCB, LCC); anti-sulfur series, etc. according to different application requirements. Floating ball valves are suitable for general industrial use.