Used as a fire safety valve for both oil & gas. - Can be installed horizontal or vertical. 100% positive shut off. - American & Canadian Gas Association approved, UL listed. - Valves supplied with weight & lever. - Supplied complete with kit containing 40mm diameter pulleys, ¼” BSP anchor, ¼” BSP M back plate, cable, wire crimps, tension spring & fusible links (qty of each depends on valve size). - Various components are used with the free fall fire valves to actuate the valve to close & to activate a relay to switch off an appliance, pump etc. - ‘Kit’ components above are also available individually. - Free fall fire valves are available up to 6” connection. - Equivalent to Landon Kingsway models.