2. The metal hard-seal floating ball valve adopts the elastic loading structure, which ensures the contact between the ball sealing surface and the valve seat sealing under the normal closing condition, suitable for small and medium-sized high-temperature use occasions.

3. Cast steel ball valve can be used in both directions, and difficult to deposit dirt in the cavity, according to user operating conditions, can also be set in the middle chamber outfall.

4. Ball surface is used special hardening, ensure that the seal between the hardness of the appropriate difference, particularly suitable for solid particles and abrasive media. Other sealing materials use flexible graphite, metal wound gaskets,  it can be used for high temperature and high pressure conditions, and a fire-resistant features.