Fire-safe manual ball valves meet API (American Petroleum Industry) 607 requirements for use in applications and environments where the valve may be exposed to fire and combustibles. Valve construction material is important to the intended application and must be chemically compatible with the system media. Always refer to the manufacturer's Chemical Compatibility guide. Manual valves open and close with a handle, which visually indicates whether the valve is open or closed depending on the handle's position relative to the valve body.