Compared with the normal ball valve, the fully welded ball valve has a strong adaptability to the changement of pressure and temperature because the valve seat is made up of a carbonized Teflon seal ring and a disc spring. and its features are as below:

  1. Fully welded ball valves are with seamless pipes, which could ensure long user life.
  2. Free maintanance, convenient installation and smart design.
  3. With FPM and PTFE+C sealing material.
  4. Multi O-rings, to ensure the sealing.
  5. The long stem is available, to keep the temperature underground.
  6. Could be installed underground, to save space.