SANKEY Wafer ball valves of the WF series have been tested successfully per British Standard BS 6755 and API-607.The material utilized for the soft seals in "fire-safe" valves remains dependent upon the required chemical resistance to suit the fluid, the application and operation conditions.
When fire does break out, it is important that it does not spread through failures in pipe-work systems.
Even under the most extreme conditions shut-off valves provide:
• Secure Operation
• Reliable Sealing in shut-off position
• Reliable Sealing to the outside