When using an outside above ground tank, how many firematic valves are required?

In the context of using an outside above-ground storage tank, it is essential to understand the purpose and requirements of firematic valves, which are designed to enhance safety by controlling the flow of fuel in the event of a fire.

The requirement for three firematic valves stems from industry standards and safety codes that govern the installation and operation of fuel storage tanks. These valves are typically positioned as follows: one valve is located at the tank outlet, which provides immediate isolation of the tank in case of an emergency. The other two are strategically placed further downstream to ensure that the entire delivery system can be effectively closed off. This arrangement significantly enhances safety by preventing the spread of fire and allowing for controlled evacuation or firefighting activities.

By utilizing three firematic valves, the system ensures that there are ample opportunities to stop the flow of fuel in the event of a fire or spill, thereby mitigating potential hazards and protecting both property and lives.