Gowin Ball Valve main used in Gas, Oil Pipeline and Station that has good seal function and high CV feature.
We can design as per working project.
Gowin ball valves'are fire safe and designed in accordance with API607 & API6FA .
When nonmetal resilient seats are destroyed in a fire, the upstream medium pressure push the ball into the downstream metal seat lip to cut off the line fluid and prevent the internal leakage due to secondary metal-to-metal seal.
The stern is designed with integral type shoulder to provide blow-out proof effectively.
It is internally inserted as the backseat function to assure stem sealing safety at all pressures.