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Property Types & Construction

Gas Valve

Definition and meaning of Gas Valve in real estate.

A gas valve is a manual safety device used to control the flow of natural gas or propane to appliances such as furnaces, water heaters, and stoves. It acts as an on-and-off switch that allows residents or technicians to shut off the gas supply during maintenance, emergencies, or appliance replacements.

In more detail

These valves are typically installed close to the appliance on the gas supply line. The valve operates using a simple quarter-turn handle. When the handle is aligned parallel to the gas pipe, the valve is open and gas flows.

When the handle is turned perpendicular, forming a right angle to the pipe, the valve is closed and the gas flow stops. Knowing the location of these valves is important for safety, as quick access can prevent gas leaks during emergencies.

Key facts

CategoryProperty Types & Construction
Open PositionHandle is parallel to the pipe
Closed PositionHandle is perpendicular to the pipe
Required byBuilding codes for all gas-powered home appliances
Example

Before replacing his old gas range, the homeowner turned the handle of the gas valve behind the stove to the perpendicular position to cut off the fuel supply safely.

Frequently asked questions

Where is the main gas shutoff valve located?

The main gas valve is usually located outdoors near the gas meter, or inside the utility room where the main line enters the home.

What should I do if I smell gas near an appliance?

If it is safe, turn off the appliance gas valve, exit the house immediately, and call the gas company or emergency services from outdoors.

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