The three-piece ball valve is composed of a valve body, two valve covers, a ball, a valve stem, a packing gland, a handle, a lock nut and other important parts. The medium of the three-piece ball valve can be used from left to right and right to left, clockwise to close, counterclockwise to open. The main performance and structural characteristics of the three-piece ball valve: 1. Full-bore design with large flow, large flow and low resistance. 2. The three-piece valve body structure is resistant to pressure and corrosion. If a hard seal is used, it can be resistant to wear and high temperature. 3. All parts are precision processed with high-quality stainless steel materials, and the sealing is made of high-quality PTFE polytetrafluoroethylene, which has a good sealing effect and corrosion resistance. 4. Adaptation temperature: soft seal -40-200 degrees, hard seal -40-400 degrees. 5. Rotate the switch at 90 degrees, which has the function of quickly switching off. 6. Working pressure 6KG-64KG pressure, 0.6MPG-6.4MPG (within 1000PSI)