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Q: What function do emergency shut-off valves perform?
A: An emergency shut-off valve is installed on fuel-supply lines beneath dispensers at grade level to minimize hazards associated with a collision or fire at the dispenser.
If a vehicle crashes into a dispenser and the fuel-supply lines are severed due to the force of the collision, the top of the valve breaks off at the integral shear groove, activating poppets and shutting off the flow of fuel. If properly installed, the valve prevents the large explosion you see in movies from occurring in real life.
Q: What other terms are used to describe an emergency shut-off valve?
A: The emergency shut-off valve is also sometimes called a shear valve, shut-off valve, safety valve, impact/crash valve, fire valve and emergency valve.
Q: Where can I learn more about emergency shut-off valves?
A: Learn more about emergency shutoff valves from the Petroleum Equipment Institute’s Wiki, RP100 and RP500.
Q: What brands of emergency shut-off valves does Source North America supply?
A: We supply emergency shut-off valves from EMCO Wheaton, Franklin Electric, Morrison Bros., OPW and Universal Valve, as well as valves in pre-plumbed dispenser sump configurations.
Q: How do I order emergency shut-off valves?
A: Contact your local Source representative or visit Shop.sourcena.com.
