What is a turn-off valve used for?

A turn-off valve is primarily used to stop the flow of gas or water in an emergency. This functionality is crucial for safety reasons, as it allows for the quick cessation of flow in situations where there may be a leak, a fire, or any hazardous condition that could escalate if the supply were to continue. For instance, in the event of a gas leak, being able to immediately shut off the gas flow can prevent further risk of explosion or asphyxiation.

This capability makes turn-off valves an essential component in plumbing and gas supply systems, ensuring that there is a mechanism in place to quickly halt the flow when necessary. They are typically positioned at points where utilities enter a building or near appliances that use gas or water, allowing for both routine maintenance and emergency responses.