Fuse (hydraulic)

Many gas station pumps are equipped with a velocity fuse to limit gasoline flow.

The fuse can be heard to engage with a "click" on some pumps if the nozzle trigger is depressed fully.

The only difference is a check valve is in place to prevent upstream fluid from coming back and venting out.

Depending on the system, hydraulic fuses may reset automatically after a delay, or may require manual re-opening.

In the design of a spillway for a dam, a fuse plug is a water retaining structure designed to wash out in a controlled fashion if the main dam is in danger of overtopping due to flood, and if the normal spillway channel is insufficient to control the overtopping.