safety valve

In that incident, the board’s investigation found multiple safety failures, including a severely eroded safety valve that allowed flammable gases to dangerously seep into unwanted areas.

A safety valve had been removed from the pipes for maintenance.

Elon Musk thinks humankind’s only safety valve is to move multitudes to Mars.

The garment sector, which employs 750,000 people, has been a crucial social safety valve, giving steady incomes to Cambodia's poorest.

Any CO2 pipelines in Kern County will be equipped with automatic safety valves, which are expected to limit leakage in the event of a rupture.