1. Thread and butt welded connection ball valve can be divided into 1-piece, 2-piece, 3-piece.
2. Body case adopt the advanced technology from German.
3. The plastic sealing structure make the seat reliable and easy to start..
4. Valve stem seal downloading using inverted structure.
5. The lower-loading stem with backward sealing construction not only prevents the handle form backing-out but also ensure the reliability of the scaling part of the handle.
6. There are butt weld, socket welding connection of the 2-piece, 3-piece ball valve and can match with the international standard ISO platform and locking devices.